) (abstract: false, static: false, final: true, packageName: hu.bme.mit.inf.dslreasoner.domains.alloyexamples) (interface: false, strictFloatingPoint: false, anonymous: false)#instance()}.
+ *
+ * This workaround is required e.g. to support recursion.
+ *
+ */
+ private static class LazyHolder {
+ private final static Live INSTANCE = new Live();
+
+ /**
+ * Statically initializes the query specification after the field {@link #INSTANCE} is assigned.
+ * This initialization order is required to support indirect recursion.
+ *
+ *
The static initializer is defined using a helper field to work around limitations of the code generator.
+ *
+ */
+ private final static Object STATIC_INITIALIZER = ensureInitialized();
+
+ public static Object ensureInitialized() {
+ INSTANCE.ensureInitializedInternal();
+ return null;
+ }
+ }
+
+ private static class GeneratedPQuery extends BaseGeneratedEMFPQuery {
+ private final static Live.GeneratedPQuery INSTANCE = new GeneratedPQuery();
+
+ private final PParameter parameter_this = new PParameter("this", "hu.bme.mit.inf.dslreasoner.domains.alloyexamples.Filesystem.FileSystem", new EClassTransitiveInstancesKey((EClass)getClassifierLiteralSafe("FS", "FileSystem")), PParameterDirection.INOUT);
+
+ private final PParameter parameter_l = new PParameter("l", "hu.bme.mit.inf.dslreasoner.domains.alloyexamples.Filesystem.FSObject", new EClassTransitiveInstancesKey((EClass)getClassifierLiteralSafe("FS", "FSObject")), PParameterDirection.INOUT);
+
+ private final List parameters = Arrays.asList(parameter_this, parameter_l);
+
+ private GeneratedPQuery() {
+ super(PVisibility.PUBLIC);
+ }
+
+ @Override
+ public String getFullyQualifiedName() {
+ return "hu.bme.mit.inf.dslreasoner.domains.alloyexamples.live";
+ }
+
+ @Override
+ public List getParameterNames() {
+ return Arrays.asList("this","l");
+ }
+
+ @Override
+ public List getParameters() {
+ return parameters;
+ }
+
+ @Override
+ public Set doGetContainedBodies() {
+ setEvaluationHints(new QueryEvaluationHint(null, QueryEvaluationHint.BackendRequirement.UNSPECIFIED));
+ Set bodies = new LinkedHashSet<>();
+ {
+ PBody body = new PBody(this);
+ PVariable var_this = body.getOrCreateVariableByName("this");
+ PVariable var_l = body.getOrCreateVariableByName("l");
+ new TypeConstraint(body, Tuples.flatTupleOf(var_this), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("FS", "FileSystem")));
+ new TypeConstraint(body, Tuples.flatTupleOf(var_l), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("FS", "FSObject")));
+ body.setSymbolicParameters(Arrays.asList(
+ new ExportedParameter(body, var_this, parameter_this),
+ new ExportedParameter(body, var_l, parameter_l)
+ ));
+ // FileSystem.root(this,l)
+ new TypeConstraint(body, Tuples.flatTupleOf(var_this), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("FS", "FileSystem")));
+ PVariable var__virtual_0_ = body.getOrCreateVariableByName(".virtual{0}");
+ new TypeConstraint(body, Tuples.flatTupleOf(var_this, var__virtual_0_), new EStructuralFeatureInstancesKey(getFeatureLiteral("FS", "FileSystem", "root")));
+ new TypeConstraint(body, Tuples.flatTupleOf(var__virtual_0_), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("FS", "Dir")));
+ new Equality(body, var__virtual_0_, var_l);
+ bodies.add(body);
+ }
+ {
+ PBody body = new PBody(this);
+ PVariable var_this = body.getOrCreateVariableByName("this");
+ PVariable var_l = body.getOrCreateVariableByName("l");
+ PVariable var_root = body.getOrCreateVariableByName("root");
+ new TypeConstraint(body, Tuples.flatTupleOf(var_this), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("FS", "FileSystem")));
+ new TypeConstraint(body, Tuples.flatTupleOf(var_l), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("FS", "FSObject")));
+ body.setSymbolicParameters(Arrays.asList(
+ new ExportedParameter(body, var_this, parameter_this),
+ new ExportedParameter(body, var_l, parameter_l)
+ ));
+ // FileSystem.root(this,root)
+ new TypeConstraint(body, Tuples.flatTupleOf(var_this), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("FS", "FileSystem")));
+ PVariable var__virtual_0_ = body.getOrCreateVariableByName(".virtual{0}");
+ new TypeConstraint(body, Tuples.flatTupleOf(var_this, var__virtual_0_), new EStructuralFeatureInstancesKey(getFeatureLiteral("FS", "FileSystem", "root")));
+ new TypeConstraint(body, Tuples.flatTupleOf(var__virtual_0_), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("FS", "Dir")));
+ new Equality(body, var__virtual_0_, var_root);
+ // find patternContent+(root,l)
+ new BinaryTransitiveClosure(body, Tuples.flatTupleOf(var_root, var_l), PatternContent.instance().getInternalQueryRepresentation());
+ bodies.add(body);
+ }
+ {
+ PAnnotation annotation = new PAnnotation("QueryBasedFeature");
+ addAnnotation(annotation);
+ }
+ return bodies;
+ }
+ }
+}
diff --git a/Domains/hu.bme.mit.inf.dslreasoner.domains.alloyexamples/src-gen/hu/bme/mit/inf/dslreasoner/domains/alloyexamples/LoopInInheritence.java b/Domains/hu.bme.mit.inf.dslreasoner.domains.alloyexamples/src-gen/hu/bme/mit/inf/dslreasoner/domains/alloyexamples/LoopInInheritence.java
new file mode 100644
index 00000000..55afe7d0
--- /dev/null
+++ b/Domains/hu.bme.mit.inf.dslreasoner.domains.alloyexamples/src-gen/hu/bme/mit/inf/dslreasoner/domains/alloyexamples/LoopInInheritence.java
@@ -0,0 +1,548 @@
+/**
+ * Generated from platform:/resource/hu.bme.mit.inf.dslreasoner.domains.alloyexamples/patterns/hu/bme/mit/inf/dslreasoner/domains/alloyexamples/Ecore.vql
+ */
+package hu.bme.mit.inf.dslreasoner.domains.alloyexamples;
+
+import hu.bme.mit.inf.dslreasoner.domains.alloyexamples.DirectSupertype;
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.LinkedHashSet;
+import java.util.List;
+import java.util.Objects;
+import java.util.Optional;
+import java.util.Set;
+import java.util.function.Consumer;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+import org.apache.log4j.Logger;
+import org.eclipse.emf.ecore.EClass;
+import org.eclipse.viatra.query.runtime.api.IPatternMatch;
+import org.eclipse.viatra.query.runtime.api.IQuerySpecification;
+import org.eclipse.viatra.query.runtime.api.ViatraQueryEngine;
+import org.eclipse.viatra.query.runtime.api.impl.BaseGeneratedEMFPQuery;
+import org.eclipse.viatra.query.runtime.api.impl.BaseGeneratedEMFQuerySpecification;
+import org.eclipse.viatra.query.runtime.api.impl.BaseMatcher;
+import org.eclipse.viatra.query.runtime.api.impl.BasePatternMatch;
+import org.eclipse.viatra.query.runtime.emf.types.EClassTransitiveInstancesKey;
+import org.eclipse.viatra.query.runtime.matchers.backend.QueryEvaluationHint;
+import org.eclipse.viatra.query.runtime.matchers.psystem.PBody;
+import org.eclipse.viatra.query.runtime.matchers.psystem.PVariable;
+import org.eclipse.viatra.query.runtime.matchers.psystem.annotations.PAnnotation;
+import org.eclipse.viatra.query.runtime.matchers.psystem.annotations.ParameterReference;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.ExportedParameter;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicenumerables.BinaryTransitiveClosure;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicenumerables.TypeConstraint;
+import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PParameter;
+import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PParameterDirection;
+import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PVisibility;
+import org.eclipse.viatra.query.runtime.matchers.tuple.Tuple;
+import org.eclipse.viatra.query.runtime.matchers.tuple.Tuples;
+import org.eclipse.viatra.query.runtime.util.ViatraQueryLoggingUtil;
+
+/**
+ * A pattern-specific query specification that can instantiate Matcher in a type-safe way.
+ *
+ * Original source:
+ *
+ * {@literal @}Constraint(key={a}, severity="error", message="error")
+ * pattern loopInInheritence(a: EClass) {
+ * find directSupertype+(a,a);
+ * }
+ *
+ *
+ * @see Matcher
+ * @see Match
+ *
+ */
+@SuppressWarnings("all")
+public final class LoopInInheritence extends BaseGeneratedEMFQuerySpecification {
+ /**
+ * Pattern-specific match representation of the hu.bme.mit.inf.dslreasoner.domains.alloyexamples.loopInInheritence pattern,
+ * to be used in conjunction with {@link Matcher}.
+ *
+ * Class fields correspond to parameters of the pattern. Fields with value null are considered unassigned.
+ * Each instance is a (possibly partial) substitution of pattern parameters,
+ * usable to represent a match of the pattern in the result of a query,
+ * or to specify the bound (fixed) input parameters when issuing a query.
+ *
+ * @see Matcher
+ *
+ */
+ public static abstract class Match extends BasePatternMatch {
+ private EClass fA;
+
+ private static List parameterNames = makeImmutableList("a");
+
+ private Match(final EClass pA) {
+ this.fA = pA;
+ }
+
+ @Override
+ public Object get(final String parameterName) {
+ if ("a".equals(parameterName)) return this.fA;
+ return null;
+ }
+
+ public EClass getA() {
+ return this.fA;
+ }
+
+ @Override
+ public boolean set(final String parameterName, final Object newValue) {
+ if (!isMutable()) throw new java.lang.UnsupportedOperationException();
+ if ("a".equals(parameterName) ) {
+ this.fA = (EClass) newValue;
+ return true;
+ }
+ return false;
+ }
+
+ public void setA(final EClass pA) {
+ if (!isMutable()) throw new java.lang.UnsupportedOperationException();
+ this.fA = pA;
+ }
+
+ @Override
+ public String patternName() {
+ return "hu.bme.mit.inf.dslreasoner.domains.alloyexamples.loopInInheritence";
+ }
+
+ @Override
+ public List parameterNames() {
+ return LoopInInheritence.Match.parameterNames;
+ }
+
+ @Override
+ public Object[] toArray() {
+ return new Object[]{fA};
+ }
+
+ @Override
+ public LoopInInheritence.Match toImmutable() {
+ return isMutable() ? newMatch(fA) : this;
+ }
+
+ @Override
+ public String prettyPrint() {
+ StringBuilder result = new StringBuilder();
+ result.append("\"a\"=" + prettyPrintValue(fA));
+ return result.toString();
+ }
+
+ @Override
+ public int hashCode() {
+ return Objects.hash(fA);
+ }
+
+ @Override
+ public boolean equals(final Object obj) {
+ if (this == obj)
+ return true;
+ if (obj == null) {
+ return false;
+ }
+ if ((obj instanceof LoopInInheritence.Match)) {
+ LoopInInheritence.Match other = (LoopInInheritence.Match) obj;
+ return Objects.equals(fA, other.fA);
+ } else {
+ // this should be infrequent
+ if (!(obj instanceof IPatternMatch)) {
+ return false;
+ }
+ IPatternMatch otherSig = (IPatternMatch) obj;
+ return Objects.equals(specification(), otherSig.specification()) && Arrays.deepEquals(toArray(), otherSig.toArray());
+ }
+ }
+
+ @Override
+ public LoopInInheritence specification() {
+ return LoopInInheritence.instance();
+ }
+
+ /**
+ * Returns an empty, mutable match.
+ * Fields of the mutable match can be filled to create a partial match, usable as matcher input.
+ *
+ * @return the empty match.
+ *
+ */
+ public static LoopInInheritence.Match newEmptyMatch() {
+ return new Mutable(null);
+ }
+
+ /**
+ * Returns a mutable (partial) match.
+ * Fields of the mutable match can be filled to create a partial match, usable as matcher input.
+ *
+ * @param pA the fixed value of pattern parameter a, or null if not bound.
+ * @return the new, mutable (partial) match object.
+ *
+ */
+ public static LoopInInheritence.Match newMutableMatch(final EClass pA) {
+ return new Mutable(pA);
+ }
+
+ /**
+ * Returns a new (partial) match.
+ * This can be used e.g. to call the matcher with a partial match.
+ * The returned match will be immutable. Use {@link #newEmptyMatch()} to obtain a mutable match object.
+ * @param pA the fixed value of pattern parameter a, or null if not bound.
+ * @return the (partial) match object.
+ *
+ */
+ public static LoopInInheritence.Match newMatch(final EClass pA) {
+ return new Immutable(pA);
+ }
+
+ private static final class Mutable extends LoopInInheritence.Match {
+ Mutable(final EClass pA) {
+ super(pA);
+ }
+
+ @Override
+ public boolean isMutable() {
+ return true;
+ }
+ }
+
+ private static final class Immutable extends LoopInInheritence.Match {
+ Immutable(final EClass pA) {
+ super(pA);
+ }
+
+ @Override
+ public boolean isMutable() {
+ return false;
+ }
+ }
+ }
+
+ /**
+ * Generated pattern matcher API of the hu.bme.mit.inf.dslreasoner.domains.alloyexamples.loopInInheritence pattern,
+ * providing pattern-specific query methods.
+ *
+ *
Use the pattern matcher on a given model via {@link #on(ViatraQueryEngine)},
+ * e.g. in conjunction with {@link ViatraQueryEngine#on(QueryScope)}.
+ *
+ *
Matches of the pattern will be represented as {@link Match}.
+ *
+ *
Original source:
+ *
+ * {@literal @}Constraint(key={a}, severity="error", message="error")
+ * pattern loopInInheritence(a: EClass) {
+ * find directSupertype+(a,a);
+ * }
+ *
+ *
+ * @see Match
+ * @see LoopInInheritence
+ *
+ */
+ public static class Matcher extends BaseMatcher {
+ /**
+ * Initializes the pattern matcher within an existing VIATRA Query engine.
+ * If the pattern matcher is already constructed in the engine, only a light-weight reference is returned.
+ *
+ * @param engine the existing VIATRA Query engine in which this matcher will be created.
+ * @throws ViatraQueryRuntimeException if an error occurs during pattern matcher creation
+ *
+ */
+ public static LoopInInheritence.Matcher on(final ViatraQueryEngine engine) {
+ // check if matcher already exists
+ Matcher matcher = engine.getExistingMatcher(querySpecification());
+ if (matcher == null) {
+ matcher = (Matcher)engine.getMatcher(querySpecification());
+ }
+ return matcher;
+ }
+
+ /**
+ * @throws ViatraQueryRuntimeException if an error occurs during pattern matcher creation
+ * @return an initialized matcher
+ * @noreference This method is for internal matcher initialization by the framework, do not call it manually.
+ *
+ */
+ public static LoopInInheritence.Matcher create() {
+ return new Matcher();
+ }
+
+ private final static int POSITION_A = 0;
+
+ private final static Logger LOGGER = ViatraQueryLoggingUtil.getLogger(LoopInInheritence.Matcher.class);
+
+ /**
+ * Initializes the pattern matcher within an existing VIATRA Query engine.
+ * If the pattern matcher is already constructed in the engine, only a light-weight reference is returned.
+ *
+ * @param engine the existing VIATRA Query engine in which this matcher will be created.
+ * @throws ViatraQueryRuntimeException if an error occurs during pattern matcher creation
+ *
+ */
+ private Matcher() {
+ super(querySpecification());
+ }
+
+ /**
+ * Returns the set of all matches of the pattern that conform to the given fixed values of some parameters.
+ * @param pA the fixed value of pattern parameter a, or null if not bound.
+ * @return matches represented as a Match object.
+ *
+ */
+ public Collection getAllMatches(final EClass pA) {
+ return rawStreamAllMatches(new Object[]{pA}).collect(Collectors.toSet());
+ }
+
+ /**
+ * Returns a stream of all matches of the pattern that conform to the given fixed values of some parameters.
+ *
+ * NOTE: It is important not to modify the source model while the stream is being processed.
+ * If the match set of the pattern changes during processing, the contents of the stream is undefined.
+ * In such cases, either rely on {@link #getAllMatches()} or collect the results of the stream in end-user code.
+ * @param pA the fixed value of pattern parameter a, or null if not bound.
+ * @return a stream of matches represented as a Match object.
+ *
+ */
+ public Stream streamAllMatches(final EClass pA) {
+ return rawStreamAllMatches(new Object[]{pA});
+ }
+
+ /**
+ * Returns an arbitrarily chosen match of the pattern that conforms to the given fixed values of some parameters.
+ * Neither determinism nor randomness of selection is guaranteed.
+ * @param pA the fixed value of pattern parameter a, or null if not bound.
+ * @return a match represented as a Match object, or null if no match is found.
+ *
+ */
+ public Optional getOneArbitraryMatch(final EClass pA) {
+ return rawGetOneArbitraryMatch(new Object[]{pA});
+ }
+
+ /**
+ * Indicates whether the given combination of specified pattern parameters constitute a valid pattern match,
+ * under any possible substitution of the unspecified parameters (if any).
+ * @param pA the fixed value of pattern parameter a, or null if not bound.
+ * @return true if the input is a valid (partial) match of the pattern.
+ *
+ */
+ public boolean hasMatch(final EClass pA) {
+ return rawHasMatch(new Object[]{pA});
+ }
+
+ /**
+ * Returns the number of all matches of the pattern that conform to the given fixed values of some parameters.
+ * @param pA the fixed value of pattern parameter a, or null if not bound.
+ * @return the number of pattern matches found.
+ *
+ */
+ public int countMatches(final EClass pA) {
+ return rawCountMatches(new Object[]{pA});
+ }
+
+ /**
+ * Executes the given processor on an arbitrarily chosen match of the pattern that conforms to the given fixed values of some parameters.
+ * Neither determinism nor randomness of selection is guaranteed.
+ * @param pA the fixed value of pattern parameter a, or null if not bound.
+ * @param processor the action that will process the selected match.
+ * @return true if the pattern has at least one match with the given parameter values, false if the processor was not invoked
+ *
+ */
+ public boolean forOneArbitraryMatch(final EClass pA, final Consumer super LoopInInheritence.Match> processor) {
+ return rawForOneArbitraryMatch(new Object[]{pA}, processor);
+ }
+
+ /**
+ * Returns a new (partial) match.
+ * This can be used e.g. to call the matcher with a partial match.
+ * The returned match will be immutable. Use {@link #newEmptyMatch()} to obtain a mutable match object.
+ * @param pA the fixed value of pattern parameter a, or null if not bound.
+ * @return the (partial) match object.
+ *
+ */
+ public LoopInInheritence.Match newMatch(final EClass pA) {
+ return LoopInInheritence.Match.newMatch(pA);
+ }
+
+ /**
+ * Retrieve the set of values that occur in matches for a.
+ * @return the Set of all values or empty set if there are no matches
+ *
+ */
+ protected Stream rawStreamAllValuesOfa(final Object[] parameters) {
+ return rawStreamAllValues(POSITION_A, parameters).map(EClass.class::cast);
+ }
+
+ /**
+ * Retrieve the set of values that occur in matches for a.
+ * @return the Set of all values or empty set if there are no matches
+ *
+ */
+ public Set getAllValuesOfa() {
+ return rawStreamAllValuesOfa(emptyArray()).collect(Collectors.toSet());
+ }
+
+ /**
+ * Retrieve the set of values that occur in matches for a.
+ * @return the Set of all values or empty set if there are no matches
+ *
+ */
+ public Stream streamAllValuesOfa() {
+ return rawStreamAllValuesOfa(emptyArray());
+ }
+
+ @Override
+ protected LoopInInheritence.Match tupleToMatch(final Tuple t) {
+ try {
+ return LoopInInheritence.Match.newMatch((EClass) t.get(POSITION_A));
+ } catch(ClassCastException e) {
+ LOGGER.error("Element(s) in tuple not properly typed!",e);
+ return null;
+ }
+ }
+
+ @Override
+ protected LoopInInheritence.Match arrayToMatch(final Object[] match) {
+ try {
+ return LoopInInheritence.Match.newMatch((EClass) match[POSITION_A]);
+ } catch(ClassCastException e) {
+ LOGGER.error("Element(s) in array not properly typed!",e);
+ return null;
+ }
+ }
+
+ @Override
+ protected LoopInInheritence.Match arrayToMatchMutable(final Object[] match) {
+ try {
+ return LoopInInheritence.Match.newMutableMatch((EClass) match[POSITION_A]);
+ } catch(ClassCastException e) {
+ LOGGER.error("Element(s) in array not properly typed!",e);
+ return null;
+ }
+ }
+
+ /**
+ * @return the singleton instance of the query specification of this pattern
+ * @throws ViatraQueryRuntimeException if the pattern definition could not be loaded
+ *
+ */
+ public static IQuerySpecification querySpecification() {
+ return LoopInInheritence.instance();
+ }
+ }
+
+ private LoopInInheritence() {
+ super(GeneratedPQuery.INSTANCE);
+ }
+
+ /**
+ * @return the singleton instance of the query specification
+ * @throws ViatraQueryRuntimeException if the pattern definition could not be loaded
+ *
+ */
+ public static LoopInInheritence instance() {
+ try{
+ return LazyHolder.INSTANCE;
+ } catch (ExceptionInInitializerError err) {
+ throw processInitializerError(err);
+ }
+ }
+
+ @Override
+ protected LoopInInheritence.Matcher instantiate(final ViatraQueryEngine engine) {
+ return LoopInInheritence.Matcher.on(engine);
+ }
+
+ @Override
+ public LoopInInheritence.Matcher instantiate() {
+ return LoopInInheritence.Matcher.create();
+ }
+
+ @Override
+ public LoopInInheritence.Match newEmptyMatch() {
+ return LoopInInheritence.Match.newEmptyMatch();
+ }
+
+ @Override
+ public LoopInInheritence.Match newMatch(final Object... parameters) {
+ return LoopInInheritence.Match.newMatch((org.eclipse.emf.ecore.EClass) parameters[0]);
+ }
+
+ /**
+ * Inner class allowing the singleton instance of {@link JvmGenericType: hu.bme.mit.inf.dslreasoner.domains.alloyexamples.LoopInInheritence (visibility: PUBLIC, simpleName: LoopInInheritence, identifier: hu.bme.mit.inf.dslreasoner.domains.alloyexamples.LoopInInheritence, deprecated: ) (abstract: false, static: false, final: true, packageName: hu.bme.mit.inf.dslreasoner.domains.alloyexamples) (interface: false, strictFloatingPoint: false, anonymous: false)} to be created
+ * not at the class load time of the outer class,
+ * but rather at the first call to {@link JvmGenericType: hu.bme.mit.inf.dslreasoner.domains.alloyexamples.LoopInInheritence (visibility: PUBLIC, simpleName: LoopInInheritence, identifier: hu.bme.mit.inf.dslreasoner.domains.alloyexamples.LoopInInheritence, deprecated: ) (abstract: false, static: false, final: true, packageName: hu.bme.mit.inf.dslreasoner.domains.alloyexamples) (interface: false, strictFloatingPoint: false, anonymous: false)#instance()}.
+ *
+ * This workaround is required e.g. to support recursion.
+ *
+ */
+ private static class LazyHolder {
+ private final static LoopInInheritence INSTANCE = new LoopInInheritence();
+
+ /**
+ * Statically initializes the query specification after the field {@link #INSTANCE} is assigned.
+ * This initialization order is required to support indirect recursion.
+ *
+ *
The static initializer is defined using a helper field to work around limitations of the code generator.
+ *
+ */
+ private final static Object STATIC_INITIALIZER = ensureInitialized();
+
+ public static Object ensureInitialized() {
+ INSTANCE.ensureInitializedInternal();
+ return null;
+ }
+ }
+
+ private static class GeneratedPQuery extends BaseGeneratedEMFPQuery {
+ private final static LoopInInheritence.GeneratedPQuery INSTANCE = new GeneratedPQuery();
+
+ private final PParameter parameter_a = new PParameter("a", "org.eclipse.emf.ecore.EClass", new EClassTransitiveInstancesKey((EClass)getClassifierLiteralSafe("http://www.eclipse.org/emf/2002/Ecore", "EClass")), PParameterDirection.INOUT);
+
+ private final List parameters = Arrays.asList(parameter_a);
+
+ private GeneratedPQuery() {
+ super(PVisibility.PUBLIC);
+ }
+
+ @Override
+ public String getFullyQualifiedName() {
+ return "hu.bme.mit.inf.dslreasoner.domains.alloyexamples.loopInInheritence";
+ }
+
+ @Override
+ public List getParameterNames() {
+ return Arrays.asList("a");
+ }
+
+ @Override
+ public List getParameters() {
+ return parameters;
+ }
+
+ @Override
+ public Set doGetContainedBodies() {
+ setEvaluationHints(new QueryEvaluationHint(null, QueryEvaluationHint.BackendRequirement.UNSPECIFIED));
+ Set bodies = new LinkedHashSet<>();
+ {
+ PBody body = new PBody(this);
+ PVariable var_a = body.getOrCreateVariableByName("a");
+ new TypeConstraint(body, Tuples.flatTupleOf(var_a), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.eclipse.org/emf/2002/Ecore", "EClass")));
+ body.setSymbolicParameters(Arrays.asList(
+ new ExportedParameter(body, var_a, parameter_a)
+ ));
+ // find directSupertype+(a,a)
+ new BinaryTransitiveClosure(body, Tuples.flatTupleOf(var_a, var_a), DirectSupertype.instance().getInternalQueryRepresentation());
+ bodies.add(body);
+ }
+ {
+ PAnnotation annotation = new PAnnotation("Constraint");
+ annotation.addAttribute("key", Arrays.asList(new Object[] {
+ new ParameterReference("a")
+ }));
+ annotation.addAttribute("severity", "error");
+ annotation.addAttribute("message", "error");
+ addAnnotation(annotation);
+ }
+ return bodies;
+ }
+ }
+}
diff --git a/Domains/hu.bme.mit.inf.dslreasoner.domains.alloyexamples/src-gen/hu/bme/mit/inf/dslreasoner/domains/alloyexamples/NonSymmetricOpposite.java b/Domains/hu.bme.mit.inf.dslreasoner.domains.alloyexamples/src-gen/hu/bme/mit/inf/dslreasoner/domains/alloyexamples/NonSymmetricOpposite.java
new file mode 100644
index 00000000..5b24ef84
--- /dev/null
+++ b/Domains/hu.bme.mit.inf.dslreasoner.domains.alloyexamples/src-gen/hu/bme/mit/inf/dslreasoner/domains/alloyexamples/NonSymmetricOpposite.java
@@ -0,0 +1,707 @@
+/**
+ * Generated from platform:/resource/hu.bme.mit.inf.dslreasoner.domains.alloyexamples/patterns/hu/bme/mit/inf/dslreasoner/domains/alloyexamples/Ecore.vql
+ */
+package hu.bme.mit.inf.dslreasoner.domains.alloyexamples;
+
+import hu.bme.mit.inf.dslreasoner.domains.alloyexamples.Opposite;
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.LinkedHashSet;
+import java.util.List;
+import java.util.Objects;
+import java.util.Optional;
+import java.util.Set;
+import java.util.function.Consumer;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+import org.apache.log4j.Logger;
+import org.eclipse.emf.ecore.EClass;
+import org.eclipse.emf.ecore.EReference;
+import org.eclipse.viatra.query.runtime.api.IPatternMatch;
+import org.eclipse.viatra.query.runtime.api.IQuerySpecification;
+import org.eclipse.viatra.query.runtime.api.ViatraQueryEngine;
+import org.eclipse.viatra.query.runtime.api.impl.BaseGeneratedEMFPQuery;
+import org.eclipse.viatra.query.runtime.api.impl.BaseGeneratedEMFQuerySpecification;
+import org.eclipse.viatra.query.runtime.api.impl.BaseMatcher;
+import org.eclipse.viatra.query.runtime.api.impl.BasePatternMatch;
+import org.eclipse.viatra.query.runtime.emf.types.EClassTransitiveInstancesKey;
+import org.eclipse.viatra.query.runtime.matchers.backend.QueryEvaluationHint;
+import org.eclipse.viatra.query.runtime.matchers.psystem.PBody;
+import org.eclipse.viatra.query.runtime.matchers.psystem.PVariable;
+import org.eclipse.viatra.query.runtime.matchers.psystem.annotations.PAnnotation;
+import org.eclipse.viatra.query.runtime.matchers.psystem.annotations.ParameterReference;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.ExportedParameter;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.NegativePatternCall;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicenumerables.PositivePatternCall;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicenumerables.TypeConstraint;
+import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PParameter;
+import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PParameterDirection;
+import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PVisibility;
+import org.eclipse.viatra.query.runtime.matchers.tuple.Tuple;
+import org.eclipse.viatra.query.runtime.matchers.tuple.Tuples;
+import org.eclipse.viatra.query.runtime.util.ViatraQueryLoggingUtil;
+
+/**
+ * A pattern-specific query specification that can instantiate Matcher in a type-safe way.
+ *
+ * Original source:
+ *
+ * {@literal @}Constraint(key={a}, severity="error", message="error")
+ * pattern nonSymmetricOpposite(a:EReference, b:EReference) {
+ * find opposite(a,b);
+ * neg find opposite(b,a);
+ * }
+ *
+ *
+ * @see Matcher
+ * @see Match
+ *
+ */
+@SuppressWarnings("all")
+public final class NonSymmetricOpposite extends BaseGeneratedEMFQuerySpecification {
+ /**
+ * Pattern-specific match representation of the hu.bme.mit.inf.dslreasoner.domains.alloyexamples.nonSymmetricOpposite pattern,
+ * to be used in conjunction with {@link Matcher}.
+ *
+ * Class fields correspond to parameters of the pattern. Fields with value null are considered unassigned.
+ * Each instance is a (possibly partial) substitution of pattern parameters,
+ * usable to represent a match of the pattern in the result of a query,
+ * or to specify the bound (fixed) input parameters when issuing a query.
+ *
+ * @see Matcher
+ *
+ */
+ public static abstract class Match extends BasePatternMatch {
+ private EReference fA;
+
+ private EReference fB;
+
+ private static List parameterNames = makeImmutableList("a", "b");
+
+ private Match(final EReference pA, final EReference pB) {
+ this.fA = pA;
+ this.fB = pB;
+ }
+
+ @Override
+ public Object get(final String parameterName) {
+ if ("a".equals(parameterName)) return this.fA;
+ if ("b".equals(parameterName)) return this.fB;
+ return null;
+ }
+
+ public EReference getA() {
+ return this.fA;
+ }
+
+ public EReference getB() {
+ return this.fB;
+ }
+
+ @Override
+ public boolean set(final String parameterName, final Object newValue) {
+ if (!isMutable()) throw new java.lang.UnsupportedOperationException();
+ if ("a".equals(parameterName) ) {
+ this.fA = (EReference) newValue;
+ return true;
+ }
+ if ("b".equals(parameterName) ) {
+ this.fB = (EReference) newValue;
+ return true;
+ }
+ return false;
+ }
+
+ public void setA(final EReference pA) {
+ if (!isMutable()) throw new java.lang.UnsupportedOperationException();
+ this.fA = pA;
+ }
+
+ public void setB(final EReference pB) {
+ if (!isMutable()) throw new java.lang.UnsupportedOperationException();
+ this.fB = pB;
+ }
+
+ @Override
+ public String patternName() {
+ return "hu.bme.mit.inf.dslreasoner.domains.alloyexamples.nonSymmetricOpposite";
+ }
+
+ @Override
+ public List parameterNames() {
+ return NonSymmetricOpposite.Match.parameterNames;
+ }
+
+ @Override
+ public Object[] toArray() {
+ return new Object[]{fA, fB};
+ }
+
+ @Override
+ public NonSymmetricOpposite.Match toImmutable() {
+ return isMutable() ? newMatch(fA, fB) : this;
+ }
+
+ @Override
+ public String prettyPrint() {
+ StringBuilder result = new StringBuilder();
+ result.append("\"a\"=" + prettyPrintValue(fA) + ", ");
+ result.append("\"b\"=" + prettyPrintValue(fB));
+ return result.toString();
+ }
+
+ @Override
+ public int hashCode() {
+ return Objects.hash(fA, fB);
+ }
+
+ @Override
+ public boolean equals(final Object obj) {
+ if (this == obj)
+ return true;
+ if (obj == null) {
+ return false;
+ }
+ if ((obj instanceof NonSymmetricOpposite.Match)) {
+ NonSymmetricOpposite.Match other = (NonSymmetricOpposite.Match) obj;
+ return Objects.equals(fA, other.fA) && Objects.equals(fB, other.fB);
+ } else {
+ // this should be infrequent
+ if (!(obj instanceof IPatternMatch)) {
+ return false;
+ }
+ IPatternMatch otherSig = (IPatternMatch) obj;
+ return Objects.equals(specification(), otherSig.specification()) && Arrays.deepEquals(toArray(), otherSig.toArray());
+ }
+ }
+
+ @Override
+ public NonSymmetricOpposite specification() {
+ return NonSymmetricOpposite.instance();
+ }
+
+ /**
+ * Returns an empty, mutable match.
+ * Fields of the mutable match can be filled to create a partial match, usable as matcher input.
+ *
+ * @return the empty match.
+ *
+ */
+ public static NonSymmetricOpposite.Match newEmptyMatch() {
+ return new Mutable(null, null);
+ }
+
+ /**
+ * Returns a mutable (partial) match.
+ * Fields of the mutable match can be filled to create a partial match, usable as matcher input.
+ *
+ * @param pA the fixed value of pattern parameter a, or null if not bound.
+ * @param pB the fixed value of pattern parameter b, or null if not bound.
+ * @return the new, mutable (partial) match object.
+ *
+ */
+ public static NonSymmetricOpposite.Match newMutableMatch(final EReference pA, final EReference pB) {
+ return new Mutable(pA, pB);
+ }
+
+ /**
+ * Returns a new (partial) match.
+ * This can be used e.g. to call the matcher with a partial match.
+ * The returned match will be immutable. Use {@link #newEmptyMatch()} to obtain a mutable match object.
+ * @param pA the fixed value of pattern parameter a, or null if not bound.
+ * @param pB the fixed value of pattern parameter b, or null if not bound.
+ * @return the (partial) match object.
+ *
+ */
+ public static NonSymmetricOpposite.Match newMatch(final EReference pA, final EReference pB) {
+ return new Immutable(pA, pB);
+ }
+
+ private static final class Mutable extends NonSymmetricOpposite.Match {
+ Mutable(final EReference pA, final EReference pB) {
+ super(pA, pB);
+ }
+
+ @Override
+ public boolean isMutable() {
+ return true;
+ }
+ }
+
+ private static final class Immutable extends NonSymmetricOpposite.Match {
+ Immutable(final EReference pA, final EReference pB) {
+ super(pA, pB);
+ }
+
+ @Override
+ public boolean isMutable() {
+ return false;
+ }
+ }
+ }
+
+ /**
+ * Generated pattern matcher API of the hu.bme.mit.inf.dslreasoner.domains.alloyexamples.nonSymmetricOpposite pattern,
+ * providing pattern-specific query methods.
+ *
+ *
Use the pattern matcher on a given model via {@link #on(ViatraQueryEngine)},
+ * e.g. in conjunction with {@link ViatraQueryEngine#on(QueryScope)}.
+ *
+ *
Matches of the pattern will be represented as {@link Match}.
+ *
+ *
Original source:
+ *
+ * {@literal @}Constraint(key={a}, severity="error", message="error")
+ * pattern nonSymmetricOpposite(a:EReference, b:EReference) {
+ * find opposite(a,b);
+ * neg find opposite(b,a);
+ * }
+ *
+ *
+ * @see Match
+ * @see NonSymmetricOpposite
+ *
+ */
+ public static class Matcher extends BaseMatcher {
+ /**
+ * Initializes the pattern matcher within an existing VIATRA Query engine.
+ * If the pattern matcher is already constructed in the engine, only a light-weight reference is returned.
+ *
+ * @param engine the existing VIATRA Query engine in which this matcher will be created.
+ * @throws ViatraQueryRuntimeException if an error occurs during pattern matcher creation
+ *
+ */
+ public static NonSymmetricOpposite.Matcher on(final ViatraQueryEngine engine) {
+ // check if matcher already exists
+ Matcher matcher = engine.getExistingMatcher(querySpecification());
+ if (matcher == null) {
+ matcher = (Matcher)engine.getMatcher(querySpecification());
+ }
+ return matcher;
+ }
+
+ /**
+ * @throws ViatraQueryRuntimeException if an error occurs during pattern matcher creation
+ * @return an initialized matcher
+ * @noreference This method is for internal matcher initialization by the framework, do not call it manually.
+ *
+ */
+ public static NonSymmetricOpposite.Matcher create() {
+ return new Matcher();
+ }
+
+ private final static int POSITION_A = 0;
+
+ private final static int POSITION_B = 1;
+
+ private final static Logger LOGGER = ViatraQueryLoggingUtil.getLogger(NonSymmetricOpposite.Matcher.class);
+
+ /**
+ * Initializes the pattern matcher within an existing VIATRA Query engine.
+ * If the pattern matcher is already constructed in the engine, only a light-weight reference is returned.
+ *
+ * @param engine the existing VIATRA Query engine in which this matcher will be created.
+ * @throws ViatraQueryRuntimeException if an error occurs during pattern matcher creation
+ *
+ */
+ private Matcher() {
+ super(querySpecification());
+ }
+
+ /**
+ * Returns the set of all matches of the pattern that conform to the given fixed values of some parameters.
+ * @param pA the fixed value of pattern parameter a, or null if not bound.
+ * @param pB the fixed value of pattern parameter b, or null if not bound.
+ * @return matches represented as a Match object.
+ *
+ */
+ public Collection getAllMatches(final EReference pA, final EReference pB) {
+ return rawStreamAllMatches(new Object[]{pA, pB}).collect(Collectors.toSet());
+ }
+
+ /**
+ * Returns a stream of all matches of the pattern that conform to the given fixed values of some parameters.
+ *
+ * NOTE: It is important not to modify the source model while the stream is being processed.
+ * If the match set of the pattern changes during processing, the contents of the stream is undefined.
+ * In such cases, either rely on {@link #getAllMatches()} or collect the results of the stream in end-user code.
+ * @param pA the fixed value of pattern parameter a, or null if not bound.
+ * @param pB the fixed value of pattern parameter b, or null if not bound.
+ * @return a stream of matches represented as a Match object.
+ *
+ */
+ public Stream streamAllMatches(final EReference pA, final EReference pB) {
+ return rawStreamAllMatches(new Object[]{pA, pB});
+ }
+
+ /**
+ * Returns an arbitrarily chosen match of the pattern that conforms to the given fixed values of some parameters.
+ * Neither determinism nor randomness of selection is guaranteed.
+ * @param pA the fixed value of pattern parameter a, or null if not bound.
+ * @param pB the fixed value of pattern parameter b, or null if not bound.
+ * @return a match represented as a Match object, or null if no match is found.
+ *
+ */
+ public Optional getOneArbitraryMatch(final EReference pA, final EReference pB) {
+ return rawGetOneArbitraryMatch(new Object[]{pA, pB});
+ }
+
+ /**
+ * Indicates whether the given combination of specified pattern parameters constitute a valid pattern match,
+ * under any possible substitution of the unspecified parameters (if any).
+ * @param pA the fixed value of pattern parameter a, or null if not bound.
+ * @param pB the fixed value of pattern parameter b, or null if not bound.
+ * @return true if the input is a valid (partial) match of the pattern.
+ *
+ */
+ public boolean hasMatch(final EReference pA, final EReference pB) {
+ return rawHasMatch(new Object[]{pA, pB});
+ }
+
+ /**
+ * Returns the number of all matches of the pattern that conform to the given fixed values of some parameters.
+ * @param pA the fixed value of pattern parameter a, or null if not bound.
+ * @param pB the fixed value of pattern parameter b, or null if not bound.
+ * @return the number of pattern matches found.
+ *
+ */
+ public int countMatches(final EReference pA, final EReference pB) {
+ return rawCountMatches(new Object[]{pA, pB});
+ }
+
+ /**
+ * Executes the given processor on an arbitrarily chosen match of the pattern that conforms to the given fixed values of some parameters.
+ * Neither determinism nor randomness of selection is guaranteed.
+ * @param pA the fixed value of pattern parameter a, or null if not bound.
+ * @param pB the fixed value of pattern parameter b, or null if not bound.
+ * @param processor the action that will process the selected match.
+ * @return true if the pattern has at least one match with the given parameter values, false if the processor was not invoked
+ *
+ */
+ public boolean forOneArbitraryMatch(final EReference pA, final EReference pB, final Consumer super NonSymmetricOpposite.Match> processor) {
+ return rawForOneArbitraryMatch(new Object[]{pA, pB}, processor);
+ }
+
+ /**
+ * Returns a new (partial) match.
+ * This can be used e.g. to call the matcher with a partial match.
+ * The returned match will be immutable. Use {@link #newEmptyMatch()} to obtain a mutable match object.
+ * @param pA the fixed value of pattern parameter a, or null if not bound.
+ * @param pB the fixed value of pattern parameter b, or null if not bound.
+ * @return the (partial) match object.
+ *
+ */
+ public NonSymmetricOpposite.Match newMatch(final EReference pA, final EReference pB) {
+ return NonSymmetricOpposite.Match.newMatch(pA, pB);
+ }
+
+ /**
+ * Retrieve the set of values that occur in matches for a.
+ * @return the Set of all values or empty set if there are no matches
+ *
+ */
+ protected Stream rawStreamAllValuesOfa(final Object[] parameters) {
+ return rawStreamAllValues(POSITION_A, parameters).map(EReference.class::cast);
+ }
+
+ /**
+ * Retrieve the set of values that occur in matches for a.
+ * @return the Set of all values or empty set if there are no matches
+ *
+ */
+ public Set getAllValuesOfa() {
+ return rawStreamAllValuesOfa(emptyArray()).collect(Collectors.toSet());
+ }
+
+ /**
+ * Retrieve the set of values that occur in matches for a.
+ * @return the Set of all values or empty set if there are no matches
+ *
+ */
+ public Stream streamAllValuesOfa() {
+ return rawStreamAllValuesOfa(emptyArray());
+ }
+
+ /**
+ * Retrieve the set of values that occur in matches for a.
+ *
+ * NOTE: It is important not to modify the source model while the stream is being processed.
+ * If the match set of the pattern changes during processing, the contents of the stream is undefined.
+ * In such cases, either rely on {@link #getAllMatches()} or collect the results of the stream in end-user code.
+ *
+ * @return the Stream of all values or empty set if there are no matches
+ *
+ */
+ public Stream streamAllValuesOfa(final NonSymmetricOpposite.Match partialMatch) {
+ return rawStreamAllValuesOfa(partialMatch.toArray());
+ }
+
+ /**
+ * Retrieve the set of values that occur in matches for a.
+ *
+ * NOTE: It is important not to modify the source model while the stream is being processed.
+ * If the match set of the pattern changes during processing, the contents of the stream is undefined.
+ * In such cases, either rely on {@link #getAllMatches()} or collect the results of the stream in end-user code.
+ *
+ * @return the Stream of all values or empty set if there are no matches
+ *
+ */
+ public Stream streamAllValuesOfa(final EReference pB) {
+ return rawStreamAllValuesOfa(new Object[]{null, pB});
+ }
+
+ /**
+ * Retrieve the set of values that occur in matches for a.
+ * @return the Set of all values or empty set if there are no matches
+ *
+ */
+ public Set getAllValuesOfa(final NonSymmetricOpposite.Match partialMatch) {
+ return rawStreamAllValuesOfa(partialMatch.toArray()).collect(Collectors.toSet());
+ }
+
+ /**
+ * Retrieve the set of values that occur in matches for a.
+ * @return the Set of all values or empty set if there are no matches
+ *
+ */
+ public Set getAllValuesOfa(final EReference pB) {
+ return rawStreamAllValuesOfa(new Object[]{null, pB}).collect(Collectors.toSet());
+ }
+
+ /**
+ * Retrieve the set of values that occur in matches for b.
+ * @return the Set of all values or empty set if there are no matches
+ *
+ */
+ protected Stream rawStreamAllValuesOfb(final Object[] parameters) {
+ return rawStreamAllValues(POSITION_B, parameters).map(EReference.class::cast);
+ }
+
+ /**
+ * Retrieve the set of values that occur in matches for b.
+ * @return the Set of all values or empty set if there are no matches
+ *
+ */
+ public Set getAllValuesOfb() {
+ return rawStreamAllValuesOfb(emptyArray()).collect(Collectors.toSet());
+ }
+
+ /**
+ * Retrieve the set of values that occur in matches for b.
+ * @return the Set of all values or empty set if there are no matches
+ *
+ */
+ public Stream streamAllValuesOfb() {
+ return rawStreamAllValuesOfb(emptyArray());
+ }
+
+ /**
+ * Retrieve the set of values that occur in matches for b.
+ *
+ * NOTE: It is important not to modify the source model while the stream is being processed.
+ * If the match set of the pattern changes during processing, the contents of the stream is undefined.
+ * In such cases, either rely on {@link #getAllMatches()} or collect the results of the stream in end-user code.
+ *
+ * @return the Stream of all values or empty set if there are no matches
+ *
+ */
+ public Stream streamAllValuesOfb(final NonSymmetricOpposite.Match partialMatch) {
+ return rawStreamAllValuesOfb(partialMatch.toArray());
+ }
+
+ /**
+ * Retrieve the set of values that occur in matches for b.
+ *
+ * NOTE: It is important not to modify the source model while the stream is being processed.
+ * If the match set of the pattern changes during processing, the contents of the stream is undefined.
+ * In such cases, either rely on {@link #getAllMatches()} or collect the results of the stream in end-user code.
+ *
+ * @return the Stream of all values or empty set if there are no matches
+ *
+ */
+ public Stream streamAllValuesOfb(final EReference pA) {
+ return rawStreamAllValuesOfb(new Object[]{pA, null});
+ }
+
+ /**
+ * Retrieve the set of values that occur in matches for b.
+ * @return the Set of all values or empty set if there are no matches
+ *
+ */
+ public Set getAllValuesOfb(final NonSymmetricOpposite.Match partialMatch) {
+ return rawStreamAllValuesOfb(partialMatch.toArray()).collect(Collectors.toSet());
+ }
+
+ /**
+ * Retrieve the set of values that occur in matches for b.
+ * @return the Set of all values or empty set if there are no matches
+ *
+ */
+ public Set getAllValuesOfb(final EReference pA) {
+ return rawStreamAllValuesOfb(new Object[]{pA, null}).collect(Collectors.toSet());
+ }
+
+ @Override
+ protected NonSymmetricOpposite.Match tupleToMatch(final Tuple t) {
+ try {
+ return NonSymmetricOpposite.Match.newMatch((EReference) t.get(POSITION_A), (EReference) t.get(POSITION_B));
+ } catch(ClassCastException e) {
+ LOGGER.error("Element(s) in tuple not properly typed!",e);
+ return null;
+ }
+ }
+
+ @Override
+ protected NonSymmetricOpposite.Match arrayToMatch(final Object[] match) {
+ try {
+ return NonSymmetricOpposite.Match.newMatch((EReference) match[POSITION_A], (EReference) match[POSITION_B]);
+ } catch(ClassCastException e) {
+ LOGGER.error("Element(s) in array not properly typed!",e);
+ return null;
+ }
+ }
+
+ @Override
+ protected NonSymmetricOpposite.Match arrayToMatchMutable(final Object[] match) {
+ try {
+ return NonSymmetricOpposite.Match.newMutableMatch((EReference) match[POSITION_A], (EReference) match[POSITION_B]);
+ } catch(ClassCastException e) {
+ LOGGER.error("Element(s) in array not properly typed!",e);
+ return null;
+ }
+ }
+
+ /**
+ * @return the singleton instance of the query specification of this pattern
+ * @throws ViatraQueryRuntimeException if the pattern definition could not be loaded
+ *
+ */
+ public static IQuerySpecification querySpecification() {
+ return NonSymmetricOpposite.instance();
+ }
+ }
+
+ private NonSymmetricOpposite() {
+ super(GeneratedPQuery.INSTANCE);
+ }
+
+ /**
+ * @return the singleton instance of the query specification
+ * @throws ViatraQueryRuntimeException if the pattern definition could not be loaded
+ *
+ */
+ public static NonSymmetricOpposite instance() {
+ try{
+ return LazyHolder.INSTANCE;
+ } catch (ExceptionInInitializerError err) {
+ throw processInitializerError(err);
+ }
+ }
+
+ @Override
+ protected NonSymmetricOpposite.Matcher instantiate(final ViatraQueryEngine engine) {
+ return NonSymmetricOpposite.Matcher.on(engine);
+ }
+
+ @Override
+ public NonSymmetricOpposite.Matcher instantiate() {
+ return NonSymmetricOpposite.Matcher.create();
+ }
+
+ @Override
+ public NonSymmetricOpposite.Match newEmptyMatch() {
+ return NonSymmetricOpposite.Match.newEmptyMatch();
+ }
+
+ @Override
+ public NonSymmetricOpposite.Match newMatch(final Object... parameters) {
+ return NonSymmetricOpposite.Match.newMatch((org.eclipse.emf.ecore.EReference) parameters[0], (org.eclipse.emf.ecore.EReference) parameters[1]);
+ }
+
+ /**
+ * Inner class allowing the singleton instance of {@link JvmGenericType: hu.bme.mit.inf.dslreasoner.domains.alloyexamples.NonSymmetricOpposite (visibility: PUBLIC, simpleName: NonSymmetricOpposite, identifier: hu.bme.mit.inf.dslreasoner.domains.alloyexamples.NonSymmetricOpposite, deprecated: ) (abstract: false, static: false, final: true, packageName: hu.bme.mit.inf.dslreasoner.domains.alloyexamples) (interface: false, strictFloatingPoint: false, anonymous: false)} to be created
+ * not at the class load time of the outer class,
+ * but rather at the first call to {@link JvmGenericType: hu.bme.mit.inf.dslreasoner.domains.alloyexamples.NonSymmetricOpposite (visibility: PUBLIC, simpleName: NonSymmetricOpposite, identifier: hu.bme.mit.inf.dslreasoner.domains.alloyexamples.NonSymmetricOpposite, deprecated: ) (abstract: false, static: false, final: true, packageName: hu.bme.mit.inf.dslreasoner.domains.alloyexamples) (interface: false, strictFloatingPoint: false, anonymous: false)#instance()}.
+ *
+ * This workaround is required e.g. to support recursion.
+ *
+ */
+ private static class LazyHolder {
+ private final static NonSymmetricOpposite INSTANCE = new NonSymmetricOpposite();
+
+ /**
+ * Statically initializes the query specification after the field {@link #INSTANCE} is assigned.
+ * This initialization order is required to support indirect recursion.
+ *
+ *
The static initializer is defined using a helper field to work around limitations of the code generator.
+ *
+ */
+ private final static Object STATIC_INITIALIZER = ensureInitialized();
+
+ public static Object ensureInitialized() {
+ INSTANCE.ensureInitializedInternal();
+ return null;
+ }
+ }
+
+ private static class GeneratedPQuery extends BaseGeneratedEMFPQuery {
+ private final static NonSymmetricOpposite.GeneratedPQuery INSTANCE = new GeneratedPQuery();
+
+ private final PParameter parameter_a = new PParameter("a", "org.eclipse.emf.ecore.EReference", new EClassTransitiveInstancesKey((EClass)getClassifierLiteralSafe("http://www.eclipse.org/emf/2002/Ecore", "EReference")), PParameterDirection.INOUT);
+
+ private final PParameter parameter_b = new PParameter("b", "org.eclipse.emf.ecore.EReference", new EClassTransitiveInstancesKey((EClass)getClassifierLiteralSafe("http://www.eclipse.org/emf/2002/Ecore", "EReference")), PParameterDirection.INOUT);
+
+ private final List parameters = Arrays.asList(parameter_a, parameter_b);
+
+ private GeneratedPQuery() {
+ super(PVisibility.PUBLIC);
+ }
+
+ @Override
+ public String getFullyQualifiedName() {
+ return "hu.bme.mit.inf.dslreasoner.domains.alloyexamples.nonSymmetricOpposite";
+ }
+
+ @Override
+ public List getParameterNames() {
+ return Arrays.asList("a","b");
+ }
+
+ @Override
+ public List getParameters() {
+ return parameters;
+ }
+
+ @Override
+ public Set doGetContainedBodies() {
+ setEvaluationHints(new QueryEvaluationHint(null, QueryEvaluationHint.BackendRequirement.UNSPECIFIED));
+ Set bodies = new LinkedHashSet<>();
+ {
+ PBody body = new PBody(this);
+ PVariable var_a = body.getOrCreateVariableByName("a");
+ PVariable var_b = body.getOrCreateVariableByName("b");
+ new TypeConstraint(body, Tuples.flatTupleOf(var_a), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.eclipse.org/emf/2002/Ecore", "EReference")));
+ new TypeConstraint(body, Tuples.flatTupleOf(var_b), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.eclipse.org/emf/2002/Ecore", "EReference")));
+ body.setSymbolicParameters(Arrays.asList(
+ new ExportedParameter(body, var_a, parameter_a),
+ new ExportedParameter(body, var_b, parameter_b)
+ ));
+ // find opposite(a,b)
+ new PositivePatternCall(body, Tuples.flatTupleOf(var_a, var_b), Opposite.instance().getInternalQueryRepresentation());
+ // neg find opposite(b,a)
+ new NegativePatternCall(body, Tuples.flatTupleOf(var_b, var_a), Opposite.instance().getInternalQueryRepresentation());
+ bodies.add(body);
+ }
+ {
+ PAnnotation annotation = new PAnnotation("Constraint");
+ annotation.addAttribute("key", Arrays.asList(new Object[] {
+ new ParameterReference("a")
+ }));
+ annotation.addAttribute("severity", "error");
+ annotation.addAttribute("message", "error");
+ addAnnotation(annotation);
+ }
+ return bodies;
+ }
+ }
+}
diff --git a/Domains/hu.bme.mit.inf.dslreasoner.domains.alloyexamples/src-gen/hu/bme/mit/inf/dslreasoner/domains/alloyexamples/Opposite.java b/Domains/hu.bme.mit.inf.dslreasoner.domains.alloyexamples/src-gen/hu/bme/mit/inf/dslreasoner/domains/alloyexamples/Opposite.java
new file mode 100644
index 00000000..a8c3507d
--- /dev/null
+++ b/Domains/hu.bme.mit.inf.dslreasoner.domains.alloyexamples/src-gen/hu/bme/mit/inf/dslreasoner/domains/alloyexamples/Opposite.java
@@ -0,0 +1,693 @@
+/**
+ * Generated from platform:/resource/hu.bme.mit.inf.dslreasoner.domains.alloyexamples/patterns/hu/bme/mit/inf/dslreasoner/domains/alloyexamples/Ecore.vql
+ */
+package hu.bme.mit.inf.dslreasoner.domains.alloyexamples;
+
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.LinkedHashSet;
+import java.util.List;
+import java.util.Objects;
+import java.util.Optional;
+import java.util.Set;
+import java.util.function.Consumer;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+import org.apache.log4j.Logger;
+import org.eclipse.emf.ecore.EClass;
+import org.eclipse.emf.ecore.EReference;
+import org.eclipse.viatra.query.runtime.api.IPatternMatch;
+import org.eclipse.viatra.query.runtime.api.IQuerySpecification;
+import org.eclipse.viatra.query.runtime.api.ViatraQueryEngine;
+import org.eclipse.viatra.query.runtime.api.impl.BaseGeneratedEMFPQuery;
+import org.eclipse.viatra.query.runtime.api.impl.BaseGeneratedEMFQuerySpecification;
+import org.eclipse.viatra.query.runtime.api.impl.BaseMatcher;
+import org.eclipse.viatra.query.runtime.api.impl.BasePatternMatch;
+import org.eclipse.viatra.query.runtime.emf.types.EClassTransitiveInstancesKey;
+import org.eclipse.viatra.query.runtime.emf.types.EStructuralFeatureInstancesKey;
+import org.eclipse.viatra.query.runtime.matchers.backend.QueryEvaluationHint;
+import org.eclipse.viatra.query.runtime.matchers.psystem.PBody;
+import org.eclipse.viatra.query.runtime.matchers.psystem.PVariable;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.Equality;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.ExportedParameter;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicenumerables.TypeConstraint;
+import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PParameter;
+import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PParameterDirection;
+import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PVisibility;
+import org.eclipse.viatra.query.runtime.matchers.tuple.Tuple;
+import org.eclipse.viatra.query.runtime.matchers.tuple.Tuples;
+import org.eclipse.viatra.query.runtime.util.ViatraQueryLoggingUtil;
+
+/**
+ * A pattern-specific query specification that can instantiate Matcher in a type-safe way.
+ *
+ * Original source:
+ *
+ * pattern opposite(a:EReference, b: EReference) {
+ * EReference.eOpposite(a,b);
+ * }
+ *
+ *
+ * @see Matcher
+ * @see Match
+ *
+ */
+@SuppressWarnings("all")
+public final class Opposite extends BaseGeneratedEMFQuerySpecification {
+ /**
+ * Pattern-specific match representation of the hu.bme.mit.inf.dslreasoner.domains.alloyexamples.opposite pattern,
+ * to be used in conjunction with {@link Matcher}.
+ *
+ * Class fields correspond to parameters of the pattern. Fields with value null are considered unassigned.
+ * Each instance is a (possibly partial) substitution of pattern parameters,
+ * usable to represent a match of the pattern in the result of a query,
+ * or to specify the bound (fixed) input parameters when issuing a query.
+ *
+ * @see Matcher
+ *
+ */
+ public static abstract class Match extends BasePatternMatch {
+ private EReference fA;
+
+ private EReference fB;
+
+ private static List parameterNames = makeImmutableList("a", "b");
+
+ private Match(final EReference pA, final EReference pB) {
+ this.fA = pA;
+ this.fB = pB;
+ }
+
+ @Override
+ public Object get(final String parameterName) {
+ if ("a".equals(parameterName)) return this.fA;
+ if ("b".equals(parameterName)) return this.fB;
+ return null;
+ }
+
+ public EReference getA() {
+ return this.fA;
+ }
+
+ public EReference getB() {
+ return this.fB;
+ }
+
+ @Override
+ public boolean set(final String parameterName, final Object newValue) {
+ if (!isMutable()) throw new java.lang.UnsupportedOperationException();
+ if ("a".equals(parameterName) ) {
+ this.fA = (EReference) newValue;
+ return true;
+ }
+ if ("b".equals(parameterName) ) {
+ this.fB = (EReference) newValue;
+ return true;
+ }
+ return false;
+ }
+
+ public void setA(final EReference pA) {
+ if (!isMutable()) throw new java.lang.UnsupportedOperationException();
+ this.fA = pA;
+ }
+
+ public void setB(final EReference pB) {
+ if (!isMutable()) throw new java.lang.UnsupportedOperationException();
+ this.fB = pB;
+ }
+
+ @Override
+ public String patternName() {
+ return "hu.bme.mit.inf.dslreasoner.domains.alloyexamples.opposite";
+ }
+
+ @Override
+ public List parameterNames() {
+ return Opposite.Match.parameterNames;
+ }
+
+ @Override
+ public Object[] toArray() {
+ return new Object[]{fA, fB};
+ }
+
+ @Override
+ public Opposite.Match toImmutable() {
+ return isMutable() ? newMatch(fA, fB) : this;
+ }
+
+ @Override
+ public String prettyPrint() {
+ StringBuilder result = new StringBuilder();
+ result.append("\"a\"=" + prettyPrintValue(fA) + ", ");
+ result.append("\"b\"=" + prettyPrintValue(fB));
+ return result.toString();
+ }
+
+ @Override
+ public int hashCode() {
+ return Objects.hash(fA, fB);
+ }
+
+ @Override
+ public boolean equals(final Object obj) {
+ if (this == obj)
+ return true;
+ if (obj == null) {
+ return false;
+ }
+ if ((obj instanceof Opposite.Match)) {
+ Opposite.Match other = (Opposite.Match) obj;
+ return Objects.equals(fA, other.fA) && Objects.equals(fB, other.fB);
+ } else {
+ // this should be infrequent
+ if (!(obj instanceof IPatternMatch)) {
+ return false;
+ }
+ IPatternMatch otherSig = (IPatternMatch) obj;
+ return Objects.equals(specification(), otherSig.specification()) && Arrays.deepEquals(toArray(), otherSig.toArray());
+ }
+ }
+
+ @Override
+ public Opposite specification() {
+ return Opposite.instance();
+ }
+
+ /**
+ * Returns an empty, mutable match.
+ * Fields of the mutable match can be filled to create a partial match, usable as matcher input.
+ *
+ * @return the empty match.
+ *
+ */
+ public static Opposite.Match newEmptyMatch() {
+ return new Mutable(null, null);
+ }
+
+ /**
+ * Returns a mutable (partial) match.
+ * Fields of the mutable match can be filled to create a partial match, usable as matcher input.
+ *
+ * @param pA the fixed value of pattern parameter a, or null if not bound.
+ * @param pB the fixed value of pattern parameter b, or null if not bound.
+ * @return the new, mutable (partial) match object.
+ *
+ */
+ public static Opposite.Match newMutableMatch(final EReference pA, final EReference pB) {
+ return new Mutable(pA, pB);
+ }
+
+ /**
+ * Returns a new (partial) match.
+ * This can be used e.g. to call the matcher with a partial match.
+ * The returned match will be immutable. Use {@link #newEmptyMatch()} to obtain a mutable match object.
+ * @param pA the fixed value of pattern parameter a, or null if not bound.
+ * @param pB the fixed value of pattern parameter b, or null if not bound.
+ * @return the (partial) match object.
+ *
+ */
+ public static Opposite.Match newMatch(final EReference pA, final EReference pB) {
+ return new Immutable(pA, pB);
+ }
+
+ private static final class Mutable extends Opposite.Match {
+ Mutable(final EReference pA, final EReference pB) {
+ super(pA, pB);
+ }
+
+ @Override
+ public boolean isMutable() {
+ return true;
+ }
+ }
+
+ private static final class Immutable extends Opposite.Match {
+ Immutable(final EReference pA, final EReference pB) {
+ super(pA, pB);
+ }
+
+ @Override
+ public boolean isMutable() {
+ return false;
+ }
+ }
+ }
+
+ /**
+ * Generated pattern matcher API of the hu.bme.mit.inf.dslreasoner.domains.alloyexamples.opposite pattern,
+ * providing pattern-specific query methods.
+ *
+ *
Use the pattern matcher on a given model via {@link #on(ViatraQueryEngine)},
+ * e.g. in conjunction with {@link ViatraQueryEngine#on(QueryScope)}.
+ *
+ *
Matches of the pattern will be represented as {@link Match}.
+ *
+ *
Original source:
+ *
+ * pattern opposite(a:EReference, b: EReference) {
+ * EReference.eOpposite(a,b);
+ * }
+ *
+ *
+ * @see Match
+ * @see Opposite
+ *
+ */
+ public static class Matcher extends BaseMatcher {
+ /**
+ * Initializes the pattern matcher within an existing VIATRA Query engine.
+ * If the pattern matcher is already constructed in the engine, only a light-weight reference is returned.
+ *
+ * @param engine the existing VIATRA Query engine in which this matcher will be created.
+ * @throws ViatraQueryRuntimeException if an error occurs during pattern matcher creation
+ *
+ */
+ public static Opposite.Matcher on(final ViatraQueryEngine engine) {
+ // check if matcher already exists
+ Matcher matcher = engine.getExistingMatcher(querySpecification());
+ if (matcher == null) {
+ matcher = (Matcher)engine.getMatcher(querySpecification());
+ }
+ return matcher;
+ }
+
+ /**
+ * @throws ViatraQueryRuntimeException if an error occurs during pattern matcher creation
+ * @return an initialized matcher
+ * @noreference This method is for internal matcher initialization by the framework, do not call it manually.
+ *
+ */
+ public static Opposite.Matcher create() {
+ return new Matcher();
+ }
+
+ private final static int POSITION_A = 0;
+
+ private final static int POSITION_B = 1;
+
+ private final static Logger LOGGER = ViatraQueryLoggingUtil.getLogger(Opposite.Matcher.class);
+
+ /**
+ * Initializes the pattern matcher within an existing VIATRA Query engine.
+ * If the pattern matcher is already constructed in the engine, only a light-weight reference is returned.
+ *
+ * @param engine the existing VIATRA Query engine in which this matcher will be created.
+ * @throws ViatraQueryRuntimeException if an error occurs during pattern matcher creation
+ *
+ */
+ private Matcher() {
+ super(querySpecification());
+ }
+
+ /**
+ * Returns the set of all matches of the pattern that conform to the given fixed values of some parameters.
+ * @param pA the fixed value of pattern parameter a, or null if not bound.
+ * @param pB the fixed value of pattern parameter b, or null if not bound.
+ * @return matches represented as a Match object.
+ *
+ */
+ public Collection getAllMatches(final EReference pA, final EReference pB) {
+ return rawStreamAllMatches(new Object[]{pA, pB}).collect(Collectors.toSet());
+ }
+
+ /**
+ * Returns a stream of all matches of the pattern that conform to the given fixed values of some parameters.
+ *
+ * NOTE: It is important not to modify the source model while the stream is being processed.
+ * If the match set of the pattern changes during processing, the contents of the stream is undefined.
+ * In such cases, either rely on {@link #getAllMatches()} or collect the results of the stream in end-user code.
+ * @param pA the fixed value of pattern parameter a, or null if not bound.
+ * @param pB the fixed value of pattern parameter b, or null if not bound.
+ * @return a stream of matches represented as a Match object.
+ *
+ */
+ public Stream streamAllMatches(final EReference pA, final EReference pB) {
+ return rawStreamAllMatches(new Object[]{pA, pB});
+ }
+
+ /**
+ * Returns an arbitrarily chosen match of the pattern that conforms to the given fixed values of some parameters.
+ * Neither determinism nor randomness of selection is guaranteed.
+ * @param pA the fixed value of pattern parameter a, or null if not bound.
+ * @param pB the fixed value of pattern parameter b, or null if not bound.
+ * @return a match represented as a Match object, or null if no match is found.
+ *
+ */
+ public Optional getOneArbitraryMatch(final EReference pA, final EReference pB) {
+ return rawGetOneArbitraryMatch(new Object[]{pA, pB});
+ }
+
+ /**
+ * Indicates whether the given combination of specified pattern parameters constitute a valid pattern match,
+ * under any possible substitution of the unspecified parameters (if any).
+ * @param pA the fixed value of pattern parameter a, or null if not bound.
+ * @param pB the fixed value of pattern parameter b, or null if not bound.
+ * @return true if the input is a valid (partial) match of the pattern.
+ *
+ */
+ public boolean hasMatch(final EReference pA, final EReference pB) {
+ return rawHasMatch(new Object[]{pA, pB});
+ }
+
+ /**
+ * Returns the number of all matches of the pattern that conform to the given fixed values of some parameters.
+ * @param pA the fixed value of pattern parameter a, or null if not bound.
+ * @param pB the fixed value of pattern parameter b, or null if not bound.
+ * @return the number of pattern matches found.
+ *
+ */
+ public int countMatches(final EReference pA, final EReference pB) {
+ return rawCountMatches(new Object[]{pA, pB});
+ }
+
+ /**
+ * Executes the given processor on an arbitrarily chosen match of the pattern that conforms to the given fixed values of some parameters.
+ * Neither determinism nor randomness of selection is guaranteed.
+ * @param pA the fixed value of pattern parameter a, or null if not bound.
+ * @param pB the fixed value of pattern parameter b, or null if not bound.
+ * @param processor the action that will process the selected match.
+ * @return true if the pattern has at least one match with the given parameter values, false if the processor was not invoked
+ *
+ */
+ public boolean forOneArbitraryMatch(final EReference pA, final EReference pB, final Consumer super Opposite.Match> processor) {
+ return rawForOneArbitraryMatch(new Object[]{pA, pB}, processor);
+ }
+
+ /**
+ * Returns a new (partial) match.
+ * This can be used e.g. to call the matcher with a partial match.
+ * The returned match will be immutable. Use {@link #newEmptyMatch()} to obtain a mutable match object.
+ * @param pA the fixed value of pattern parameter a, or null if not bound.
+ * @param pB the fixed value of pattern parameter b, or null if not bound.
+ * @return the (partial) match object.
+ *
+ */
+ public Opposite.Match newMatch(final EReference pA, final EReference pB) {
+ return Opposite.Match.newMatch(pA, pB);
+ }
+
+ /**
+ * Retrieve the set of values that occur in matches for a.
+ * @return the Set of all values or empty set if there are no matches
+ *
+ */
+ protected Stream rawStreamAllValuesOfa(final Object[] parameters) {
+ return rawStreamAllValues(POSITION_A, parameters).map(EReference.class::cast);
+ }
+
+ /**
+ * Retrieve the set of values that occur in matches for a.
+ * @return the Set of all values or empty set if there are no matches
+ *
+ */
+ public Set getAllValuesOfa() {
+ return rawStreamAllValuesOfa(emptyArray()).collect(Collectors.toSet());
+ }
+
+ /**
+ * Retrieve the set of values that occur in matches for a.
+ * @return the Set of all values or empty set if there are no matches
+ *
+ */
+ public Stream streamAllValuesOfa() {
+ return rawStreamAllValuesOfa(emptyArray());
+ }
+
+ /**
+ * Retrieve the set of values that occur in matches for a.
+ *
+ * NOTE: It is important not to modify the source model while the stream is being processed.
+ * If the match set of the pattern changes during processing, the contents of the stream is undefined.
+ * In such cases, either rely on {@link #getAllMatches()} or collect the results of the stream in end-user code.
+ *
+ * @return the Stream of all values or empty set if there are no matches
+ *
+ */
+ public Stream streamAllValuesOfa(final Opposite.Match partialMatch) {
+ return rawStreamAllValuesOfa(partialMatch.toArray());
+ }
+
+ /**
+ * Retrieve the set of values that occur in matches for a.
+ *
+ * NOTE: It is important not to modify the source model while the stream is being processed.
+ * If the match set of the pattern changes during processing, the contents of the stream is undefined.
+ * In such cases, either rely on {@link #getAllMatches()} or collect the results of the stream in end-user code.
+ *
+ * @return the Stream of all values or empty set if there are no matches
+ *
+ */
+ public Stream streamAllValuesOfa(final EReference pB) {
+ return rawStreamAllValuesOfa(new Object[]{null, pB});
+ }
+
+ /**
+ * Retrieve the set of values that occur in matches for a.
+ * @return the Set of all values or empty set if there are no matches
+ *
+ */
+ public Set getAllValuesOfa(final Opposite.Match partialMatch) {
+ return rawStreamAllValuesOfa(partialMatch.toArray()).collect(Collectors.toSet());
+ }
+
+ /**
+ * Retrieve the set of values that occur in matches for a.
+ * @return the Set of all values or empty set if there are no matches
+ *
+ */
+ public Set getAllValuesOfa(final EReference pB) {
+ return rawStreamAllValuesOfa(new Object[]{null, pB}).collect(Collectors.toSet());
+ }
+
+ /**
+ * Retrieve the set of values that occur in matches for b.
+ * @return the Set of all values or empty set if there are no matches
+ *
+ */
+ protected Stream rawStreamAllValuesOfb(final Object[] parameters) {
+ return rawStreamAllValues(POSITION_B, parameters).map(EReference.class::cast);
+ }
+
+ /**
+ * Retrieve the set of values that occur in matches for b.
+ * @return the Set of all values or empty set if there are no matches
+ *
+ */
+ public Set getAllValuesOfb() {
+ return rawStreamAllValuesOfb(emptyArray()).collect(Collectors.toSet());
+ }
+
+ /**
+ * Retrieve the set of values that occur in matches for b.
+ * @return the Set of all values or empty set if there are no matches
+ *
+ */
+ public Stream streamAllValuesOfb() {
+ return rawStreamAllValuesOfb(emptyArray());
+ }
+
+ /**
+ * Retrieve the set of values that occur in matches for b.
+ *
+ * NOTE: It is important not to modify the source model while the stream is being processed.
+ * If the match set of the pattern changes during processing, the contents of the stream is undefined.
+ * In such cases, either rely on {@link #getAllMatches()} or collect the results of the stream in end-user code.
+ *
+ * @return the Stream of all values or empty set if there are no matches
+ *
+ */
+ public Stream streamAllValuesOfb(final Opposite.Match partialMatch) {
+ return rawStreamAllValuesOfb(partialMatch.toArray());
+ }
+
+ /**
+ * Retrieve the set of values that occur in matches for b.
+ *
+ * NOTE: It is important not to modify the source model while the stream is being processed.
+ * If the match set of the pattern changes during processing, the contents of the stream is undefined.
+ * In such cases, either rely on {@link #getAllMatches()} or collect the results of the stream in end-user code.
+ *
+ * @return the Stream of all values or empty set if there are no matches
+ *
+ */
+ public Stream streamAllValuesOfb(final EReference pA) {
+ return rawStreamAllValuesOfb(new Object[]{pA, null});
+ }
+
+ /**
+ * Retrieve the set of values that occur in matches for b.
+ * @return the Set of all values or empty set if there are no matches
+ *
+ */
+ public Set getAllValuesOfb(final Opposite.Match partialMatch) {
+ return rawStreamAllValuesOfb(partialMatch.toArray()).collect(Collectors.toSet());
+ }
+
+ /**
+ * Retrieve the set of values that occur in matches for b.
+ * @return the Set of all values or empty set if there are no matches
+ *
+ */
+ public Set getAllValuesOfb(final EReference pA) {
+ return rawStreamAllValuesOfb(new Object[]{pA, null}).collect(Collectors.toSet());
+ }
+
+ @Override
+ protected Opposite.Match tupleToMatch(final Tuple t) {
+ try {
+ return Opposite.Match.newMatch((EReference) t.get(POSITION_A), (EReference) t.get(POSITION_B));
+ } catch(ClassCastException e) {
+ LOGGER.error("Element(s) in tuple not properly typed!",e);
+ return null;
+ }
+ }
+
+ @Override
+ protected Opposite.Match arrayToMatch(final Object[] match) {
+ try {
+ return Opposite.Match.newMatch((EReference) match[POSITION_A], (EReference) match[POSITION_B]);
+ } catch(ClassCastException e) {
+ LOGGER.error("Element(s) in array not properly typed!",e);
+ return null;
+ }
+ }
+
+ @Override
+ protected Opposite.Match arrayToMatchMutable(final Object[] match) {
+ try {
+ return Opposite.Match.newMutableMatch((EReference) match[POSITION_A], (EReference) match[POSITION_B]);
+ } catch(ClassCastException e) {
+ LOGGER.error("Element(s) in array not properly typed!",e);
+ return null;
+ }
+ }
+
+ /**
+ * @return the singleton instance of the query specification of this pattern
+ * @throws ViatraQueryRuntimeException if the pattern definition could not be loaded
+ *
+ */
+ public static IQuerySpecification querySpecification() {
+ return Opposite.instance();
+ }
+ }
+
+ private Opposite() {
+ super(GeneratedPQuery.INSTANCE);
+ }
+
+ /**
+ * @return the singleton instance of the query specification
+ * @throws ViatraQueryRuntimeException if the pattern definition could not be loaded
+ *
+ */
+ public static Opposite instance() {
+ try{
+ return LazyHolder.INSTANCE;
+ } catch (ExceptionInInitializerError err) {
+ throw processInitializerError(err);
+ }
+ }
+
+ @Override
+ protected Opposite.Matcher instantiate(final ViatraQueryEngine engine) {
+ return Opposite.Matcher.on(engine);
+ }
+
+ @Override
+ public Opposite.Matcher instantiate() {
+ return Opposite.Matcher.create();
+ }
+
+ @Override
+ public Opposite.Match newEmptyMatch() {
+ return Opposite.Match.newEmptyMatch();
+ }
+
+ @Override
+ public Opposite.Match newMatch(final Object... parameters) {
+ return Opposite.Match.newMatch((org.eclipse.emf.ecore.EReference) parameters[0], (org.eclipse.emf.ecore.EReference) parameters[1]);
+ }
+
+ /**
+ * Inner class allowing the singleton instance of {@link JvmGenericType: hu.bme.mit.inf.dslreasoner.domains.alloyexamples.Opposite (visibility: PUBLIC, simpleName: Opposite, identifier: hu.bme.mit.inf.dslreasoner.domains.alloyexamples.Opposite, deprecated: ) (abstract: false, static: false, final: true, packageName: hu.bme.mit.inf.dslreasoner.domains.alloyexamples) (interface: false, strictFloatingPoint: false, anonymous: false)} to be created
+ * not at the class load time of the outer class,
+ * but rather at the first call to {@link JvmGenericType: hu.bme.mit.inf.dslreasoner.domains.alloyexamples.Opposite (visibility: PUBLIC, simpleName: Opposite, identifier: hu.bme.mit.inf.dslreasoner.domains.alloyexamples.Opposite, deprecated: ) (abstract: false, static: false, final: true, packageName: hu.bme.mit.inf.dslreasoner.domains.alloyexamples) (interface: false, strictFloatingPoint: false, anonymous: false)#instance()}.
+ *
+ * This workaround is required e.g. to support recursion.
+ *
+ */
+ private static class LazyHolder {
+ private final static Opposite INSTANCE = new Opposite();
+
+ /**
+ * Statically initializes the query specification after the field {@link #INSTANCE} is assigned.
+ * This initialization order is required to support indirect recursion.
+ *
+ *
The static initializer is defined using a helper field to work around limitations of the code generator.
+ *
+ */
+ private final static Object STATIC_INITIALIZER = ensureInitialized();
+
+ public static Object ensureInitialized() {
+ INSTANCE.ensureInitializedInternal();
+ return null;
+ }
+ }
+
+ private static class GeneratedPQuery extends BaseGeneratedEMFPQuery {
+ private final static Opposite.GeneratedPQuery INSTANCE = new GeneratedPQuery();
+
+ private final PParameter parameter_a = new PParameter("a", "org.eclipse.emf.ecore.EReference", new EClassTransitiveInstancesKey((EClass)getClassifierLiteralSafe("http://www.eclipse.org/emf/2002/Ecore", "EReference")), PParameterDirection.INOUT);
+
+ private final PParameter parameter_b = new PParameter("b", "org.eclipse.emf.ecore.EReference", new EClassTransitiveInstancesKey((EClass)getClassifierLiteralSafe("http://www.eclipse.org/emf/2002/Ecore", "EReference")), PParameterDirection.INOUT);
+
+ private final List parameters = Arrays.asList(parameter_a, parameter_b);
+
+ private GeneratedPQuery() {
+ super(PVisibility.PUBLIC);
+ }
+
+ @Override
+ public String getFullyQualifiedName() {
+ return "hu.bme.mit.inf.dslreasoner.domains.alloyexamples.opposite";
+ }
+
+ @Override
+ public List getParameterNames() {
+ return Arrays.asList("a","b");
+ }
+
+ @Override
+ public List getParameters() {
+ return parameters;
+ }
+
+ @Override
+ public Set doGetContainedBodies() {
+ setEvaluationHints(new QueryEvaluationHint(null, QueryEvaluationHint.BackendRequirement.UNSPECIFIED));
+ Set bodies = new LinkedHashSet<>();
+ {
+ PBody body = new PBody(this);
+ PVariable var_a = body.getOrCreateVariableByName("a");
+ PVariable var_b = body.getOrCreateVariableByName("b");
+ new TypeConstraint(body, Tuples.flatTupleOf(var_a), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.eclipse.org/emf/2002/Ecore", "EReference")));
+ new TypeConstraint(body, Tuples.flatTupleOf(var_b), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.eclipse.org/emf/2002/Ecore", "EReference")));
+ body.setSymbolicParameters(Arrays.asList(
+ new ExportedParameter(body, var_a, parameter_a),
+ new ExportedParameter(body, var_b, parameter_b)
+ ));
+ // EReference.eOpposite(a,b)
+ new TypeConstraint(body, Tuples.flatTupleOf(var_a), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.eclipse.org/emf/2002/Ecore", "EReference")));
+ PVariable var__virtual_0_ = body.getOrCreateVariableByName(".virtual{0}");
+ new TypeConstraint(body, Tuples.flatTupleOf(var_a, var__virtual_0_), new EStructuralFeatureInstancesKey(getFeatureLiteral("http://www.eclipse.org/emf/2002/Ecore", "EReference", "eOpposite")));
+ new TypeConstraint(body, Tuples.flatTupleOf(var__virtual_0_), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.eclipse.org/emf/2002/Ecore", "EReference")));
+ new Equality(body, var__virtual_0_, var_b);
+ bodies.add(body);
+ }
+ return bodies;
+ }
+ }
+}
diff --git a/Domains/hu.bme.mit.inf.dslreasoner.domains.alloyexamples/src-gen/hu/bme/mit/inf/dslreasoner/domains/alloyexamples/OppositeDifferentClass.java b/Domains/hu.bme.mit.inf.dslreasoner.domains.alloyexamples/src-gen/hu/bme/mit/inf/dslreasoner/domains/alloyexamples/OppositeDifferentClass.java
new file mode 100644
index 00000000..0f8b6357
--- /dev/null
+++ b/Domains/hu.bme.mit.inf.dslreasoner.domains.alloyexamples/src-gen/hu/bme/mit/inf/dslreasoner/domains/alloyexamples/OppositeDifferentClass.java
@@ -0,0 +1,577 @@
+/**
+ * Generated from platform:/resource/hu.bme.mit.inf.dslreasoner.domains.alloyexamples/patterns/hu/bme/mit/inf/dslreasoner/domains/alloyexamples/Ecore.vql
+ */
+package hu.bme.mit.inf.dslreasoner.domains.alloyexamples;
+
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.LinkedHashSet;
+import java.util.List;
+import java.util.Objects;
+import java.util.Optional;
+import java.util.Set;
+import java.util.function.Consumer;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+import org.apache.log4j.Logger;
+import org.eclipse.emf.ecore.EClass;
+import org.eclipse.emf.ecore.EReference;
+import org.eclipse.viatra.query.runtime.api.IPatternMatch;
+import org.eclipse.viatra.query.runtime.api.IQuerySpecification;
+import org.eclipse.viatra.query.runtime.api.ViatraQueryEngine;
+import org.eclipse.viatra.query.runtime.api.impl.BaseGeneratedEMFPQuery;
+import org.eclipse.viatra.query.runtime.api.impl.BaseGeneratedEMFQuerySpecification;
+import org.eclipse.viatra.query.runtime.api.impl.BaseMatcher;
+import org.eclipse.viatra.query.runtime.api.impl.BasePatternMatch;
+import org.eclipse.viatra.query.runtime.emf.types.EClassTransitiveInstancesKey;
+import org.eclipse.viatra.query.runtime.emf.types.EStructuralFeatureInstancesKey;
+import org.eclipse.viatra.query.runtime.matchers.backend.QueryEvaluationHint;
+import org.eclipse.viatra.query.runtime.matchers.psystem.PBody;
+import org.eclipse.viatra.query.runtime.matchers.psystem.PVariable;
+import org.eclipse.viatra.query.runtime.matchers.psystem.annotations.PAnnotation;
+import org.eclipse.viatra.query.runtime.matchers.psystem.annotations.ParameterReference;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.Equality;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.ExportedParameter;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.Inequality;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicenumerables.TypeConstraint;
+import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PParameter;
+import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PParameterDirection;
+import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PVisibility;
+import org.eclipse.viatra.query.runtime.matchers.tuple.Tuple;
+import org.eclipse.viatra.query.runtime.matchers.tuple.Tuples;
+import org.eclipse.viatra.query.runtime.util.ViatraQueryLoggingUtil;
+
+/**
+ * A pattern-specific query specification that can instantiate Matcher in a type-safe way.
+ *
+ * Original source:
+ *
+ * {@literal @}Constraint(key={a}, severity="error", message="error")
+ * pattern oppositeDifferentClass(a:EReference) {
+ * EReference.eOpposite(a,b);
+ * EReference.eContainingClass(a,aContaining);
+ * EReference.eType(b,bTarget);
+ * aContaining != bTarget;
+ * }
+ *
+ *
+ * @see Matcher
+ * @see Match
+ *
+ */
+@SuppressWarnings("all")
+public final class OppositeDifferentClass extends BaseGeneratedEMFQuerySpecification {
+ /**
+ * Pattern-specific match representation of the hu.bme.mit.inf.dslreasoner.domains.alloyexamples.oppositeDifferentClass pattern,
+ * to be used in conjunction with {@link Matcher}.
+ *
+ * Class fields correspond to parameters of the pattern. Fields with value null are considered unassigned.
+ * Each instance is a (possibly partial) substitution of pattern parameters,
+ * usable to represent a match of the pattern in the result of a query,
+ * or to specify the bound (fixed) input parameters when issuing a query.
+ *
+ * @see Matcher
+ *
+ */
+ public static abstract class Match extends BasePatternMatch {
+ private EReference fA;
+
+ private static List parameterNames = makeImmutableList("a");
+
+ private Match(final EReference pA) {
+ this.fA = pA;
+ }
+
+ @Override
+ public Object get(final String parameterName) {
+ if ("a".equals(parameterName)) return this.fA;
+ return null;
+ }
+
+ public EReference getA() {
+ return this.fA;
+ }
+
+ @Override
+ public boolean set(final String parameterName, final Object newValue) {
+ if (!isMutable()) throw new java.lang.UnsupportedOperationException();
+ if ("a".equals(parameterName) ) {
+ this.fA = (EReference) newValue;
+ return true;
+ }
+ return false;
+ }
+
+ public void setA(final EReference pA) {
+ if (!isMutable()) throw new java.lang.UnsupportedOperationException();
+ this.fA = pA;
+ }
+
+ @Override
+ public String patternName() {
+ return "hu.bme.mit.inf.dslreasoner.domains.alloyexamples.oppositeDifferentClass";
+ }
+
+ @Override
+ public List parameterNames() {
+ return OppositeDifferentClass.Match.parameterNames;
+ }
+
+ @Override
+ public Object[] toArray() {
+ return new Object[]{fA};
+ }
+
+ @Override
+ public OppositeDifferentClass.Match toImmutable() {
+ return isMutable() ? newMatch(fA) : this;
+ }
+
+ @Override
+ public String prettyPrint() {
+ StringBuilder result = new StringBuilder();
+ result.append("\"a\"=" + prettyPrintValue(fA));
+ return result.toString();
+ }
+
+ @Override
+ public int hashCode() {
+ return Objects.hash(fA);
+ }
+
+ @Override
+ public boolean equals(final Object obj) {
+ if (this == obj)
+ return true;
+ if (obj == null) {
+ return false;
+ }
+ if ((obj instanceof OppositeDifferentClass.Match)) {
+ OppositeDifferentClass.Match other = (OppositeDifferentClass.Match) obj;
+ return Objects.equals(fA, other.fA);
+ } else {
+ // this should be infrequent
+ if (!(obj instanceof IPatternMatch)) {
+ return false;
+ }
+ IPatternMatch otherSig = (IPatternMatch) obj;
+ return Objects.equals(specification(), otherSig.specification()) && Arrays.deepEquals(toArray(), otherSig.toArray());
+ }
+ }
+
+ @Override
+ public OppositeDifferentClass specification() {
+ return OppositeDifferentClass.instance();
+ }
+
+ /**
+ * Returns an empty, mutable match.
+ * Fields of the mutable match can be filled to create a partial match, usable as matcher input.
+ *
+ * @return the empty match.
+ *
+ */
+ public static OppositeDifferentClass.Match newEmptyMatch() {
+ return new Mutable(null);
+ }
+
+ /**
+ * Returns a mutable (partial) match.
+ * Fields of the mutable match can be filled to create a partial match, usable as matcher input.
+ *
+ * @param pA the fixed value of pattern parameter a, or null if not bound.
+ * @return the new, mutable (partial) match object.
+ *
+ */
+ public static OppositeDifferentClass.Match newMutableMatch(final EReference pA) {
+ return new Mutable(pA);
+ }
+
+ /**
+ * Returns a new (partial) match.
+ * This can be used e.g. to call the matcher with a partial match.
+ * The returned match will be immutable. Use {@link #newEmptyMatch()} to obtain a mutable match object.
+ * @param pA the fixed value of pattern parameter a, or null if not bound.
+ * @return the (partial) match object.
+ *
+ */
+ public static OppositeDifferentClass.Match newMatch(final EReference pA) {
+ return new Immutable(pA);
+ }
+
+ private static final class Mutable extends OppositeDifferentClass.Match {
+ Mutable(final EReference pA) {
+ super(pA);
+ }
+
+ @Override
+ public boolean isMutable() {
+ return true;
+ }
+ }
+
+ private static final class Immutable extends OppositeDifferentClass.Match {
+ Immutable(final EReference pA) {
+ super(pA);
+ }
+
+ @Override
+ public boolean isMutable() {
+ return false;
+ }
+ }
+ }
+
+ /**
+ * Generated pattern matcher API of the hu.bme.mit.inf.dslreasoner.domains.alloyexamples.oppositeDifferentClass pattern,
+ * providing pattern-specific query methods.
+ *
+ *
Use the pattern matcher on a given model via {@link #on(ViatraQueryEngine)},
+ * e.g. in conjunction with {@link ViatraQueryEngine#on(QueryScope)}.
+ *
+ *
Matches of the pattern will be represented as {@link Match}.
+ *
+ *
Original source:
+ *
+ * {@literal @}Constraint(key={a}, severity="error", message="error")
+ * pattern oppositeDifferentClass(a:EReference) {
+ * EReference.eOpposite(a,b);
+ * EReference.eContainingClass(a,aContaining);
+ * EReference.eType(b,bTarget);
+ * aContaining != bTarget;
+ * }
+ *
+ *
+ * @see Match
+ * @see OppositeDifferentClass
+ *
+ */
+ public static class Matcher extends BaseMatcher {
+ /**
+ * Initializes the pattern matcher within an existing VIATRA Query engine.
+ * If the pattern matcher is already constructed in the engine, only a light-weight reference is returned.
+ *
+ * @param engine the existing VIATRA Query engine in which this matcher will be created.
+ * @throws ViatraQueryRuntimeException if an error occurs during pattern matcher creation
+ *
+ */
+ public static OppositeDifferentClass.Matcher on(final ViatraQueryEngine engine) {
+ // check if matcher already exists
+ Matcher matcher = engine.getExistingMatcher(querySpecification());
+ if (matcher == null) {
+ matcher = (Matcher)engine.getMatcher(querySpecification());
+ }
+ return matcher;
+ }
+
+ /**
+ * @throws ViatraQueryRuntimeException if an error occurs during pattern matcher creation
+ * @return an initialized matcher
+ * @noreference This method is for internal matcher initialization by the framework, do not call it manually.
+ *
+ */
+ public static OppositeDifferentClass.Matcher create() {
+ return new Matcher();
+ }
+
+ private final static int POSITION_A = 0;
+
+ private final static Logger LOGGER = ViatraQueryLoggingUtil.getLogger(OppositeDifferentClass.Matcher.class);
+
+ /**
+ * Initializes the pattern matcher within an existing VIATRA Query engine.
+ * If the pattern matcher is already constructed in the engine, only a light-weight reference is returned.
+ *
+ * @param engine the existing VIATRA Query engine in which this matcher will be created.
+ * @throws ViatraQueryRuntimeException if an error occurs during pattern matcher creation
+ *
+ */
+ private Matcher() {
+ super(querySpecification());
+ }
+
+ /**
+ * Returns the set of all matches of the pattern that conform to the given fixed values of some parameters.
+ * @param pA the fixed value of pattern parameter a, or null if not bound.
+ * @return matches represented as a Match object.
+ *
+ */
+ public Collection getAllMatches(final EReference pA) {
+ return rawStreamAllMatches(new Object[]{pA}).collect(Collectors.toSet());
+ }
+
+ /**
+ * Returns a stream of all matches of the pattern that conform to the given fixed values of some parameters.
+ *
+ * NOTE: It is important not to modify the source model while the stream is being processed.
+ * If the match set of the pattern changes during processing, the contents of the stream is undefined.
+ * In such cases, either rely on {@link #getAllMatches()} or collect the results of the stream in end-user code.
+ * @param pA the fixed value of pattern parameter a, or null if not bound.
+ * @return a stream of matches represented as a Match object.
+ *
+ */
+ public Stream streamAllMatches(final EReference pA) {
+ return rawStreamAllMatches(new Object[]{pA});
+ }
+
+ /**
+ * Returns an arbitrarily chosen match of the pattern that conforms to the given fixed values of some parameters.
+ * Neither determinism nor randomness of selection is guaranteed.
+ * @param pA the fixed value of pattern parameter a, or null if not bound.
+ * @return a match represented as a Match object, or null if no match is found.
+ *
+ */
+ public Optional getOneArbitraryMatch(final EReference pA) {
+ return rawGetOneArbitraryMatch(new Object[]{pA});
+ }
+
+ /**
+ * Indicates whether the given combination of specified pattern parameters constitute a valid pattern match,
+ * under any possible substitution of the unspecified parameters (if any).
+ * @param pA the fixed value of pattern parameter a, or null if not bound.
+ * @return true if the input is a valid (partial) match of the pattern.
+ *
+ */
+ public boolean hasMatch(final EReference pA) {
+ return rawHasMatch(new Object[]{pA});
+ }
+
+ /**
+ * Returns the number of all matches of the pattern that conform to the given fixed values of some parameters.
+ * @param pA the fixed value of pattern parameter a, or null if not bound.
+ * @return the number of pattern matches found.
+ *
+ */
+ public int countMatches(final EReference pA) {
+ return rawCountMatches(new Object[]{pA});
+ }
+
+ /**
+ * Executes the given processor on an arbitrarily chosen match of the pattern that conforms to the given fixed values of some parameters.
+ * Neither determinism nor randomness of selection is guaranteed.
+ * @param pA the fixed value of pattern parameter a, or null if not bound.
+ * @param processor the action that will process the selected match.
+ * @return true if the pattern has at least one match with the given parameter values, false if the processor was not invoked
+ *
+ */
+ public boolean forOneArbitraryMatch(final EReference pA, final Consumer super OppositeDifferentClass.Match> processor) {
+ return rawForOneArbitraryMatch(new Object[]{pA}, processor);
+ }
+
+ /**
+ * Returns a new (partial) match.
+ * This can be used e.g. to call the matcher with a partial match.
+ * The returned match will be immutable. Use {@link #newEmptyMatch()} to obtain a mutable match object.
+ * @param pA the fixed value of pattern parameter a, or null if not bound.
+ * @return the (partial) match object.
+ *
+ */
+ public OppositeDifferentClass.Match newMatch(final EReference pA) {
+ return OppositeDifferentClass.Match.newMatch(pA);
+ }
+
+ /**
+ * Retrieve the set of values that occur in matches for a.
+ * @return the Set of all values or empty set if there are no matches
+ *
+ */
+ protected Stream rawStreamAllValuesOfa(final Object[] parameters) {
+ return rawStreamAllValues(POSITION_A, parameters).map(EReference.class::cast);
+ }
+
+ /**
+ * Retrieve the set of values that occur in matches for a.
+ * @return the Set of all values or empty set if there are no matches
+ *
+ */
+ public Set getAllValuesOfa() {
+ return rawStreamAllValuesOfa(emptyArray()).collect(Collectors.toSet());
+ }
+
+ /**
+ * Retrieve the set of values that occur in matches for a.
+ * @return the Set of all values or empty set if there are no matches
+ *
+ */
+ public Stream streamAllValuesOfa() {
+ return rawStreamAllValuesOfa(emptyArray());
+ }
+
+ @Override
+ protected OppositeDifferentClass.Match tupleToMatch(final Tuple t) {
+ try {
+ return OppositeDifferentClass.Match.newMatch((EReference) t.get(POSITION_A));
+ } catch(ClassCastException e) {
+ LOGGER.error("Element(s) in tuple not properly typed!",e);
+ return null;
+ }
+ }
+
+ @Override
+ protected OppositeDifferentClass.Match arrayToMatch(final Object[] match) {
+ try {
+ return OppositeDifferentClass.Match.newMatch((EReference) match[POSITION_A]);
+ } catch(ClassCastException e) {
+ LOGGER.error("Element(s) in array not properly typed!",e);
+ return null;
+ }
+ }
+
+ @Override
+ protected OppositeDifferentClass.Match arrayToMatchMutable(final Object[] match) {
+ try {
+ return OppositeDifferentClass.Match.newMutableMatch((EReference) match[POSITION_A]);
+ } catch(ClassCastException e) {
+ LOGGER.error("Element(s) in array not properly typed!",e);
+ return null;
+ }
+ }
+
+ /**
+ * @return the singleton instance of the query specification of this pattern
+ * @throws ViatraQueryRuntimeException if the pattern definition could not be loaded
+ *
+ */
+ public static IQuerySpecification querySpecification() {
+ return OppositeDifferentClass.instance();
+ }
+ }
+
+ private OppositeDifferentClass() {
+ super(GeneratedPQuery.INSTANCE);
+ }
+
+ /**
+ * @return the singleton instance of the query specification
+ * @throws ViatraQueryRuntimeException if the pattern definition could not be loaded
+ *
+ */
+ public static OppositeDifferentClass instance() {
+ try{
+ return LazyHolder.INSTANCE;
+ } catch (ExceptionInInitializerError err) {
+ throw processInitializerError(err);
+ }
+ }
+
+ @Override
+ protected OppositeDifferentClass.Matcher instantiate(final ViatraQueryEngine engine) {
+ return OppositeDifferentClass.Matcher.on(engine);
+ }
+
+ @Override
+ public OppositeDifferentClass.Matcher instantiate() {
+ return OppositeDifferentClass.Matcher.create();
+ }
+
+ @Override
+ public OppositeDifferentClass.Match newEmptyMatch() {
+ return OppositeDifferentClass.Match.newEmptyMatch();
+ }
+
+ @Override
+ public OppositeDifferentClass.Match newMatch(final Object... parameters) {
+ return OppositeDifferentClass.Match.newMatch((org.eclipse.emf.ecore.EReference) parameters[0]);
+ }
+
+ /**
+ * Inner class allowing the singleton instance of {@link JvmGenericType: hu.bme.mit.inf.dslreasoner.domains.alloyexamples.OppositeDifferentClass (visibility: PUBLIC, simpleName: OppositeDifferentClass, identifier: hu.bme.mit.inf.dslreasoner.domains.alloyexamples.OppositeDifferentClass, deprecated: ) (abstract: false, static: false, final: true, packageName: hu.bme.mit.inf.dslreasoner.domains.alloyexamples) (interface: false, strictFloatingPoint: false, anonymous: false)} to be created
+ * not at the class load time of the outer class,
+ * but rather at the first call to {@link JvmGenericType: hu.bme.mit.inf.dslreasoner.domains.alloyexamples.OppositeDifferentClass (visibility: PUBLIC, simpleName: OppositeDifferentClass, identifier: hu.bme.mit.inf.dslreasoner.domains.alloyexamples.OppositeDifferentClass, deprecated: ) (abstract: false, static: false, final: true, packageName: hu.bme.mit.inf.dslreasoner.domains.alloyexamples) (interface: false, strictFloatingPoint: false, anonymous: false)#instance()}.
+ *
+ * This workaround is required e.g. to support recursion.
+ *
+ */
+ private static class LazyHolder {
+ private final static OppositeDifferentClass INSTANCE = new OppositeDifferentClass();
+
+ /**
+ * Statically initializes the query specification after the field {@link #INSTANCE} is assigned.
+ * This initialization order is required to support indirect recursion.
+ *
+ *
The static initializer is defined using a helper field to work around limitations of the code generator.
+ *
+ */
+ private final static Object STATIC_INITIALIZER = ensureInitialized();
+
+ public static Object ensureInitialized() {
+ INSTANCE.ensureInitializedInternal();
+ return null;
+ }
+ }
+
+ private static class GeneratedPQuery extends BaseGeneratedEMFPQuery {
+ private final static OppositeDifferentClass.GeneratedPQuery INSTANCE = new GeneratedPQuery();
+
+ private final PParameter parameter_a = new PParameter("a", "org.eclipse.emf.ecore.EReference", new EClassTransitiveInstancesKey((EClass)getClassifierLiteralSafe("http://www.eclipse.org/emf/2002/Ecore", "EReference")), PParameterDirection.INOUT);
+
+ private final List parameters = Arrays.asList(parameter_a);
+
+ private GeneratedPQuery() {
+ super(PVisibility.PUBLIC);
+ }
+
+ @Override
+ public String getFullyQualifiedName() {
+ return "hu.bme.mit.inf.dslreasoner.domains.alloyexamples.oppositeDifferentClass";
+ }
+
+ @Override
+ public List getParameterNames() {
+ return Arrays.asList("a");
+ }
+
+ @Override
+ public List getParameters() {
+ return parameters;
+ }
+
+ @Override
+ public Set doGetContainedBodies() {
+ setEvaluationHints(new QueryEvaluationHint(null, QueryEvaluationHint.BackendRequirement.UNSPECIFIED));
+ Set bodies = new LinkedHashSet<>();
+ {
+ PBody body = new PBody(this);
+ PVariable var_a = body.getOrCreateVariableByName("a");
+ PVariable var_b = body.getOrCreateVariableByName("b");
+ PVariable var_aContaining = body.getOrCreateVariableByName("aContaining");
+ PVariable var_bTarget = body.getOrCreateVariableByName("bTarget");
+ new TypeConstraint(body, Tuples.flatTupleOf(var_a), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.eclipse.org/emf/2002/Ecore", "EReference")));
+ body.setSymbolicParameters(Arrays.asList(
+ new ExportedParameter(body, var_a, parameter_a)
+ ));
+ // EReference.eOpposite(a,b)
+ new TypeConstraint(body, Tuples.flatTupleOf(var_a), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.eclipse.org/emf/2002/Ecore", "EReference")));
+ PVariable var__virtual_0_ = body.getOrCreateVariableByName(".virtual{0}");
+ new TypeConstraint(body, Tuples.flatTupleOf(var_a, var__virtual_0_), new EStructuralFeatureInstancesKey(getFeatureLiteral("http://www.eclipse.org/emf/2002/Ecore", "EReference", "eOpposite")));
+ new TypeConstraint(body, Tuples.flatTupleOf(var__virtual_0_), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.eclipse.org/emf/2002/Ecore", "EReference")));
+ new Equality(body, var__virtual_0_, var_b);
+ // EReference.eContainingClass(a,aContaining)
+ new TypeConstraint(body, Tuples.flatTupleOf(var_a), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.eclipse.org/emf/2002/Ecore", "EReference")));
+ PVariable var__virtual_1_ = body.getOrCreateVariableByName(".virtual{1}");
+ new TypeConstraint(body, Tuples.flatTupleOf(var_a, var__virtual_1_), new EStructuralFeatureInstancesKey(getFeatureLiteral("http://www.eclipse.org/emf/2002/Ecore", "EStructuralFeature", "eContainingClass")));
+ new TypeConstraint(body, Tuples.flatTupleOf(var__virtual_1_), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.eclipse.org/emf/2002/Ecore", "EClass")));
+ new Equality(body, var__virtual_1_, var_aContaining);
+ // EReference.eType(b,bTarget)
+ new TypeConstraint(body, Tuples.flatTupleOf(var_b), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.eclipse.org/emf/2002/Ecore", "EReference")));
+ PVariable var__virtual_2_ = body.getOrCreateVariableByName(".virtual{2}");
+ new TypeConstraint(body, Tuples.flatTupleOf(var_b, var__virtual_2_), new EStructuralFeatureInstancesKey(getFeatureLiteral("http://www.eclipse.org/emf/2002/Ecore", "ETypedElement", "eType")));
+ new TypeConstraint(body, Tuples.flatTupleOf(var__virtual_2_), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.eclipse.org/emf/2002/Ecore", "EClassifier")));
+ new Equality(body, var__virtual_2_, var_bTarget);
+ // aContaining != bTarget
+ new Inequality(body, var_aContaining, var_bTarget);
+ bodies.add(body);
+ }
+ {
+ PAnnotation annotation = new PAnnotation("Constraint");
+ annotation.addAttribute("key", Arrays.asList(new Object[] {
+ new ParameterReference("a")
+ }));
+ annotation.addAttribute("severity", "error");
+ annotation.addAttribute("message", "error");
+ addAnnotation(annotation);
+ }
+ return bodies;
+ }
+ }
+}
diff --git a/Domains/hu.bme.mit.inf.dslreasoner.domains.alloyexamples/src-gen/hu/bme/mit/inf/dslreasoner/domains/alloyexamples/PatternContent.java b/Domains/hu.bme.mit.inf.dslreasoner.domains.alloyexamples/src-gen/hu/bme/mit/inf/dslreasoner/domains/alloyexamples/PatternContent.java
new file mode 100644
index 00000000..f9bab96e
--- /dev/null
+++ b/Domains/hu.bme.mit.inf.dslreasoner.domains.alloyexamples/src-gen/hu/bme/mit/inf/dslreasoner/domains/alloyexamples/PatternContent.java
@@ -0,0 +1,693 @@
+/**
+ * Generated from platform:/resource/hu.bme.mit.inf.dslreasoner.domains.alloyexamples/patterns/hu/bme/mit/inf/dslreasoner/domains/alloyexamples/FileSystem.vql
+ */
+package hu.bme.mit.inf.dslreasoner.domains.alloyexamples;
+
+import hu.bme.mit.inf.dslreasoner.domains.alloyexamples.Filesystem.FSObject;
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.LinkedHashSet;
+import java.util.List;
+import java.util.Objects;
+import java.util.Optional;
+import java.util.Set;
+import java.util.function.Consumer;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+import org.apache.log4j.Logger;
+import org.eclipse.emf.ecore.EClass;
+import org.eclipse.viatra.query.runtime.api.IPatternMatch;
+import org.eclipse.viatra.query.runtime.api.IQuerySpecification;
+import org.eclipse.viatra.query.runtime.api.ViatraQueryEngine;
+import org.eclipse.viatra.query.runtime.api.impl.BaseGeneratedEMFPQuery;
+import org.eclipse.viatra.query.runtime.api.impl.BaseGeneratedEMFQuerySpecification;
+import org.eclipse.viatra.query.runtime.api.impl.BaseMatcher;
+import org.eclipse.viatra.query.runtime.api.impl.BasePatternMatch;
+import org.eclipse.viatra.query.runtime.emf.types.EClassTransitiveInstancesKey;
+import org.eclipse.viatra.query.runtime.emf.types.EStructuralFeatureInstancesKey;
+import org.eclipse.viatra.query.runtime.matchers.backend.QueryEvaluationHint;
+import org.eclipse.viatra.query.runtime.matchers.psystem.PBody;
+import org.eclipse.viatra.query.runtime.matchers.psystem.PVariable;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.Equality;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.ExportedParameter;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicenumerables.TypeConstraint;
+import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PParameter;
+import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PParameterDirection;
+import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PVisibility;
+import org.eclipse.viatra.query.runtime.matchers.tuple.Tuple;
+import org.eclipse.viatra.query.runtime.matchers.tuple.Tuples;
+import org.eclipse.viatra.query.runtime.util.ViatraQueryLoggingUtil;
+
+/**
+ * A pattern-specific query specification that can instantiate Matcher in a type-safe way.
+ *
+ * Original source:
+ *
+ * pattern patternContent(o1: FSObject, o2: FSObject) {
+ * Dir.contents(o1,o2);
+ * }
+ *
+ *
+ * @see Matcher
+ * @see Match
+ *
+ */
+@SuppressWarnings("all")
+public final class PatternContent extends BaseGeneratedEMFQuerySpecification {
+ /**
+ * Pattern-specific match representation of the hu.bme.mit.inf.dslreasoner.domains.alloyexamples.patternContent pattern,
+ * to be used in conjunction with {@link Matcher}.
+ *
+ * Class fields correspond to parameters of the pattern. Fields with value null are considered unassigned.
+ * Each instance is a (possibly partial) substitution of pattern parameters,
+ * usable to represent a match of the pattern in the result of a query,
+ * or to specify the bound (fixed) input parameters when issuing a query.
+ *
+ * @see Matcher
+ *
+ */
+ public static abstract class Match extends BasePatternMatch {
+ private FSObject fO1;
+
+ private FSObject fO2;
+
+ private static List parameterNames = makeImmutableList("o1", "o2");
+
+ private Match(final FSObject pO1, final FSObject pO2) {
+ this.fO1 = pO1;
+ this.fO2 = pO2;
+ }
+
+ @Override
+ public Object get(final String parameterName) {
+ if ("o1".equals(parameterName)) return this.fO1;
+ if ("o2".equals(parameterName)) return this.fO2;
+ return null;
+ }
+
+ public FSObject getO1() {
+ return this.fO1;
+ }
+
+ public FSObject getO2() {
+ return this.fO2;
+ }
+
+ @Override
+ public boolean set(final String parameterName, final Object newValue) {
+ if (!isMutable()) throw new java.lang.UnsupportedOperationException();
+ if ("o1".equals(parameterName) ) {
+ this.fO1 = (FSObject) newValue;
+ return true;
+ }
+ if ("o2".equals(parameterName) ) {
+ this.fO2 = (FSObject) newValue;
+ return true;
+ }
+ return false;
+ }
+
+ public void setO1(final FSObject pO1) {
+ if (!isMutable()) throw new java.lang.UnsupportedOperationException();
+ this.fO1 = pO1;
+ }
+
+ public void setO2(final FSObject pO2) {
+ if (!isMutable()) throw new java.lang.UnsupportedOperationException();
+ this.fO2 = pO2;
+ }
+
+ @Override
+ public String patternName() {
+ return "hu.bme.mit.inf.dslreasoner.domains.alloyexamples.patternContent";
+ }
+
+ @Override
+ public List parameterNames() {
+ return PatternContent.Match.parameterNames;
+ }
+
+ @Override
+ public Object[] toArray() {
+ return new Object[]{fO1, fO2};
+ }
+
+ @Override
+ public PatternContent.Match toImmutable() {
+ return isMutable() ? newMatch(fO1, fO2) : this;
+ }
+
+ @Override
+ public String prettyPrint() {
+ StringBuilder result = new StringBuilder();
+ result.append("\"o1\"=" + prettyPrintValue(fO1) + ", ");
+ result.append("\"o2\"=" + prettyPrintValue(fO2));
+ return result.toString();
+ }
+
+ @Override
+ public int hashCode() {
+ return Objects.hash(fO1, fO2);
+ }
+
+ @Override
+ public boolean equals(final Object obj) {
+ if (this == obj)
+ return true;
+ if (obj == null) {
+ return false;
+ }
+ if ((obj instanceof PatternContent.Match)) {
+ PatternContent.Match other = (PatternContent.Match) obj;
+ return Objects.equals(fO1, other.fO1) && Objects.equals(fO2, other.fO2);
+ } else {
+ // this should be infrequent
+ if (!(obj instanceof IPatternMatch)) {
+ return false;
+ }
+ IPatternMatch otherSig = (IPatternMatch) obj;
+ return Objects.equals(specification(), otherSig.specification()) && Arrays.deepEquals(toArray(), otherSig.toArray());
+ }
+ }
+
+ @Override
+ public PatternContent specification() {
+ return PatternContent.instance();
+ }
+
+ /**
+ * Returns an empty, mutable match.
+ * Fields of the mutable match can be filled to create a partial match, usable as matcher input.
+ *
+ * @return the empty match.
+ *
+ */
+ public static PatternContent.Match newEmptyMatch() {
+ return new Mutable(null, null);
+ }
+
+ /**
+ * Returns a mutable (partial) match.
+ * Fields of the mutable match can be filled to create a partial match, usable as matcher input.
+ *
+ * @param pO1 the fixed value of pattern parameter o1, or null if not bound.
+ * @param pO2 the fixed value of pattern parameter o2, or null if not bound.
+ * @return the new, mutable (partial) match object.
+ *
+ */
+ public static PatternContent.Match newMutableMatch(final FSObject pO1, final FSObject pO2) {
+ return new Mutable(pO1, pO2);
+ }
+
+ /**
+ * Returns a new (partial) match.
+ * This can be used e.g. to call the matcher with a partial match.
+ * The returned match will be immutable. Use {@link #newEmptyMatch()} to obtain a mutable match object.
+ * @param pO1 the fixed value of pattern parameter o1, or null if not bound.
+ * @param pO2 the fixed value of pattern parameter o2, or null if not bound.
+ * @return the (partial) match object.
+ *
+ */
+ public static PatternContent.Match newMatch(final FSObject pO1, final FSObject pO2) {
+ return new Immutable(pO1, pO2);
+ }
+
+ private static final class Mutable extends PatternContent.Match {
+ Mutable(final FSObject pO1, final FSObject pO2) {
+ super(pO1, pO2);
+ }
+
+ @Override
+ public boolean isMutable() {
+ return true;
+ }
+ }
+
+ private static final class Immutable extends PatternContent.Match {
+ Immutable(final FSObject pO1, final FSObject pO2) {
+ super(pO1, pO2);
+ }
+
+ @Override
+ public boolean isMutable() {
+ return false;
+ }
+ }
+ }
+
+ /**
+ * Generated pattern matcher API of the hu.bme.mit.inf.dslreasoner.domains.alloyexamples.patternContent pattern,
+ * providing pattern-specific query methods.
+ *
+ *
Use the pattern matcher on a given model via {@link #on(ViatraQueryEngine)},
+ * e.g. in conjunction with {@link ViatraQueryEngine#on(QueryScope)}.
+ *
+ *
Matches of the pattern will be represented as {@link Match}.
+ *
+ *
Original source:
+ *
+ * pattern patternContent(o1: FSObject, o2: FSObject) {
+ * Dir.contents(o1,o2);
+ * }
+ *
+ *
+ * @see Match
+ * @see PatternContent
+ *
+ */
+ public static class Matcher extends BaseMatcher {
+ /**
+ * Initializes the pattern matcher within an existing VIATRA Query engine.
+ * If the pattern matcher is already constructed in the engine, only a light-weight reference is returned.
+ *
+ * @param engine the existing VIATRA Query engine in which this matcher will be created.
+ * @throws ViatraQueryRuntimeException if an error occurs during pattern matcher creation
+ *
+ */
+ public static PatternContent.Matcher on(final ViatraQueryEngine engine) {
+ // check if matcher already exists
+ Matcher matcher = engine.getExistingMatcher(querySpecification());
+ if (matcher == null) {
+ matcher = (Matcher)engine.getMatcher(querySpecification());
+ }
+ return matcher;
+ }
+
+ /**
+ * @throws ViatraQueryRuntimeException if an error occurs during pattern matcher creation
+ * @return an initialized matcher
+ * @noreference This method is for internal matcher initialization by the framework, do not call it manually.
+ *
+ */
+ public static PatternContent.Matcher create() {
+ return new Matcher();
+ }
+
+ private final static int POSITION_O1 = 0;
+
+ private final static int POSITION_O2 = 1;
+
+ private final static Logger LOGGER = ViatraQueryLoggingUtil.getLogger(PatternContent.Matcher.class);
+
+ /**
+ * Initializes the pattern matcher within an existing VIATRA Query engine.
+ * If the pattern matcher is already constructed in the engine, only a light-weight reference is returned.
+ *
+ * @param engine the existing VIATRA Query engine in which this matcher will be created.
+ * @throws ViatraQueryRuntimeException if an error occurs during pattern matcher creation
+ *
+ */
+ private Matcher() {
+ super(querySpecification());
+ }
+
+ /**
+ * Returns the set of all matches of the pattern that conform to the given fixed values of some parameters.
+ * @param pO1 the fixed value of pattern parameter o1, or null if not bound.
+ * @param pO2 the fixed value of pattern parameter o2, or null if not bound.
+ * @return matches represented as a Match object.
+ *
+ */
+ public Collection getAllMatches(final FSObject pO1, final FSObject pO2) {
+ return rawStreamAllMatches(new Object[]{pO1, pO2}).collect(Collectors.toSet());
+ }
+
+ /**
+ * Returns a stream of all matches of the pattern that conform to the given fixed values of some parameters.
+ *
+ * NOTE: It is important not to modify the source model while the stream is being processed.
+ * If the match set of the pattern changes during processing, the contents of the stream is undefined.
+ * In such cases, either rely on {@link #getAllMatches()} or collect the results of the stream in end-user code.
+ * @param pO1 the fixed value of pattern parameter o1, or null if not bound.
+ * @param pO2 the fixed value of pattern parameter o2, or null if not bound.
+ * @return a stream of matches represented as a Match object.
+ *
+ */
+ public Stream streamAllMatches(final FSObject pO1, final FSObject pO2) {
+ return rawStreamAllMatches(new Object[]{pO1, pO2});
+ }
+
+ /**
+ * Returns an arbitrarily chosen match of the pattern that conforms to the given fixed values of some parameters.
+ * Neither determinism nor randomness of selection is guaranteed.
+ * @param pO1 the fixed value of pattern parameter o1, or null if not bound.
+ * @param pO2 the fixed value of pattern parameter o2, or null if not bound.
+ * @return a match represented as a Match object, or null if no match is found.
+ *
+ */
+ public Optional getOneArbitraryMatch(final FSObject pO1, final FSObject pO2) {
+ return rawGetOneArbitraryMatch(new Object[]{pO1, pO2});
+ }
+
+ /**
+ * Indicates whether the given combination of specified pattern parameters constitute a valid pattern match,
+ * under any possible substitution of the unspecified parameters (if any).
+ * @param pO1 the fixed value of pattern parameter o1, or null if not bound.
+ * @param pO2 the fixed value of pattern parameter o2, or null if not bound.
+ * @return true if the input is a valid (partial) match of the pattern.
+ *
+ */
+ public boolean hasMatch(final FSObject pO1, final FSObject pO2) {
+ return rawHasMatch(new Object[]{pO1, pO2});
+ }
+
+ /**
+ * Returns the number of all matches of the pattern that conform to the given fixed values of some parameters.
+ * @param pO1 the fixed value of pattern parameter o1, or null if not bound.
+ * @param pO2 the fixed value of pattern parameter o2, or null if not bound.
+ * @return the number of pattern matches found.
+ *
+ */
+ public int countMatches(final FSObject pO1, final FSObject pO2) {
+ return rawCountMatches(new Object[]{pO1, pO2});
+ }
+
+ /**
+ * Executes the given processor on an arbitrarily chosen match of the pattern that conforms to the given fixed values of some parameters.
+ * Neither determinism nor randomness of selection is guaranteed.
+ * @param pO1 the fixed value of pattern parameter o1, or null if not bound.
+ * @param pO2 the fixed value of pattern parameter o2, or null if not bound.
+ * @param processor the action that will process the selected match.
+ * @return true if the pattern has at least one match with the given parameter values, false if the processor was not invoked
+ *
+ */
+ public boolean forOneArbitraryMatch(final FSObject pO1, final FSObject pO2, final Consumer super PatternContent.Match> processor) {
+ return rawForOneArbitraryMatch(new Object[]{pO1, pO2}, processor);
+ }
+
+ /**
+ * Returns a new (partial) match.
+ * This can be used e.g. to call the matcher with a partial match.
+ * The returned match will be immutable. Use {@link #newEmptyMatch()} to obtain a mutable match object.
+ * @param pO1 the fixed value of pattern parameter o1, or null if not bound.
+ * @param pO2 the fixed value of pattern parameter o2, or null if not bound.
+ * @return the (partial) match object.
+ *
+ */
+ public PatternContent.Match newMatch(final FSObject pO1, final FSObject pO2) {
+ return PatternContent.Match.newMatch(pO1, pO2);
+ }
+
+ /**
+ * Retrieve the set of values that occur in matches for o1.
+ * @return the Set of all values or empty set if there are no matches
+ *
+ */
+ protected Stream rawStreamAllValuesOfo1(final Object[] parameters) {
+ return rawStreamAllValues(POSITION_O1, parameters).map(FSObject.class::cast);
+ }
+
+ /**
+ * Retrieve the set of values that occur in matches for o1.
+ * @return the Set of all values or empty set if there are no matches
+ *
+ */
+ public Set getAllValuesOfo1() {
+ return rawStreamAllValuesOfo1(emptyArray()).collect(Collectors.toSet());
+ }
+
+ /**
+ * Retrieve the set of values that occur in matches for o1.
+ * @return the Set of all values or empty set if there are no matches
+ *
+ */
+ public Stream streamAllValuesOfo1() {
+ return rawStreamAllValuesOfo1(emptyArray());
+ }
+
+ /**
+ * Retrieve the set of values that occur in matches for o1.
+ *
+ * NOTE: It is important not to modify the source model while the stream is being processed.
+ * If the match set of the pattern changes during processing, the contents of the stream is undefined.
+ * In such cases, either rely on {@link #getAllMatches()} or collect the results of the stream in end-user code.
+ *
+ * @return the Stream of all values or empty set if there are no matches
+ *
+ */
+ public Stream streamAllValuesOfo1(final PatternContent.Match partialMatch) {
+ return rawStreamAllValuesOfo1(partialMatch.toArray());
+ }
+
+ /**
+ * Retrieve the set of values that occur in matches for o1.
+ *
+ * NOTE: It is important not to modify the source model while the stream is being processed.
+ * If the match set of the pattern changes during processing, the contents of the stream is undefined.
+ * In such cases, either rely on {@link #getAllMatches()} or collect the results of the stream in end-user code.
+ *
+ * @return the Stream of all values or empty set if there are no matches
+ *
+ */
+ public Stream streamAllValuesOfo1(final FSObject pO2) {
+ return rawStreamAllValuesOfo1(new Object[]{null, pO2});
+ }
+
+ /**
+ * Retrieve the set of values that occur in matches for o1.
+ * @return the Set of all values or empty set if there are no matches
+ *
+ */
+ public Set getAllValuesOfo1(final PatternContent.Match partialMatch) {
+ return rawStreamAllValuesOfo1(partialMatch.toArray()).collect(Collectors.toSet());
+ }
+
+ /**
+ * Retrieve the set of values that occur in matches for o1.
+ * @return the Set of all values or empty set if there are no matches
+ *
+ */
+ public Set getAllValuesOfo1(final FSObject pO2) {
+ return rawStreamAllValuesOfo1(new Object[]{null, pO2}).collect(Collectors.toSet());
+ }
+
+ /**
+ * Retrieve the set of values that occur in matches for o2.
+ * @return the Set of all values or empty set if there are no matches
+ *
+ */
+ protected Stream rawStreamAllValuesOfo2(final Object[] parameters) {
+ return rawStreamAllValues(POSITION_O2, parameters).map(FSObject.class::cast);
+ }
+
+ /**
+ * Retrieve the set of values that occur in matches for o2.
+ * @return the Set of all values or empty set if there are no matches
+ *
+ */
+ public Set getAllValuesOfo2() {
+ return rawStreamAllValuesOfo2(emptyArray()).collect(Collectors.toSet());
+ }
+
+ /**
+ * Retrieve the set of values that occur in matches for o2.
+ * @return the Set of all values or empty set if there are no matches
+ *
+ */
+ public Stream streamAllValuesOfo2() {
+ return rawStreamAllValuesOfo2(emptyArray());
+ }
+
+ /**
+ * Retrieve the set of values that occur in matches for o2.
+ *
+ * NOTE: It is important not to modify the source model while the stream is being processed.
+ * If the match set of the pattern changes during processing, the contents of the stream is undefined.
+ * In such cases, either rely on {@link #getAllMatches()} or collect the results of the stream in end-user code.
+ *
+ * @return the Stream of all values or empty set if there are no matches
+ *
+ */
+ public Stream streamAllValuesOfo2(final PatternContent.Match partialMatch) {
+ return rawStreamAllValuesOfo2(partialMatch.toArray());
+ }
+
+ /**
+ * Retrieve the set of values that occur in matches for o2.
+ *
+ * NOTE: It is important not to modify the source model while the stream is being processed.
+ * If the match set of the pattern changes during processing, the contents of the stream is undefined.
+ * In such cases, either rely on {@link #getAllMatches()} or collect the results of the stream in end-user code.
+ *
+ * @return the Stream of all values or empty set if there are no matches
+ *
+ */
+ public Stream streamAllValuesOfo2(final FSObject pO1) {
+ return rawStreamAllValuesOfo2(new Object[]{pO1, null});
+ }
+
+ /**
+ * Retrieve the set of values that occur in matches for o2.
+ * @return the Set of all values or empty set if there are no matches
+ *
+ */
+ public Set getAllValuesOfo2(final PatternContent.Match partialMatch) {
+ return rawStreamAllValuesOfo2(partialMatch.toArray()).collect(Collectors.toSet());
+ }
+
+ /**
+ * Retrieve the set of values that occur in matches for o2.
+ * @return the Set of all values or empty set if there are no matches
+ *
+ */
+ public Set getAllValuesOfo2(final FSObject pO1) {
+ return rawStreamAllValuesOfo2(new Object[]{pO1, null}).collect(Collectors.toSet());
+ }
+
+ @Override
+ protected PatternContent.Match tupleToMatch(final Tuple t) {
+ try {
+ return PatternContent.Match.newMatch((FSObject) t.get(POSITION_O1), (FSObject) t.get(POSITION_O2));
+ } catch(ClassCastException e) {
+ LOGGER.error("Element(s) in tuple not properly typed!",e);
+ return null;
+ }
+ }
+
+ @Override
+ protected PatternContent.Match arrayToMatch(final Object[] match) {
+ try {
+ return PatternContent.Match.newMatch((FSObject) match[POSITION_O1], (FSObject) match[POSITION_O2]);
+ } catch(ClassCastException e) {
+ LOGGER.error("Element(s) in array not properly typed!",e);
+ return null;
+ }
+ }
+
+ @Override
+ protected PatternContent.Match arrayToMatchMutable(final Object[] match) {
+ try {
+ return PatternContent.Match.newMutableMatch((FSObject) match[POSITION_O1], (FSObject) match[POSITION_O2]);
+ } catch(ClassCastException e) {
+ LOGGER.error("Element(s) in array not properly typed!",e);
+ return null;
+ }
+ }
+
+ /**
+ * @return the singleton instance of the query specification of this pattern
+ * @throws ViatraQueryRuntimeException if the pattern definition could not be loaded
+ *
+ */
+ public static IQuerySpecification querySpecification() {
+ return PatternContent.instance();
+ }
+ }
+
+ private PatternContent() {
+ super(GeneratedPQuery.INSTANCE);
+ }
+
+ /**
+ * @return the singleton instance of the query specification
+ * @throws ViatraQueryRuntimeException if the pattern definition could not be loaded
+ *
+ */
+ public static PatternContent instance() {
+ try{
+ return LazyHolder.INSTANCE;
+ } catch (ExceptionInInitializerError err) {
+ throw processInitializerError(err);
+ }
+ }
+
+ @Override
+ protected PatternContent.Matcher instantiate(final ViatraQueryEngine engine) {
+ return PatternContent.Matcher.on(engine);
+ }
+
+ @Override
+ public PatternContent.Matcher instantiate() {
+ return PatternContent.Matcher.create();
+ }
+
+ @Override
+ public PatternContent.Match newEmptyMatch() {
+ return PatternContent.Match.newEmptyMatch();
+ }
+
+ @Override
+ public PatternContent.Match newMatch(final Object... parameters) {
+ return PatternContent.Match.newMatch((hu.bme.mit.inf.dslreasoner.domains.alloyexamples.Filesystem.FSObject) parameters[0], (hu.bme.mit.inf.dslreasoner.domains.alloyexamples.Filesystem.FSObject) parameters[1]);
+ }
+
+ /**
+ * Inner class allowing the singleton instance of {@link JvmGenericType: hu.bme.mit.inf.dslreasoner.domains.alloyexamples.PatternContent (visibility: PUBLIC, simpleName: PatternContent, identifier: hu.bme.mit.inf.dslreasoner.domains.alloyexamples.PatternContent, deprecated: ) (abstract: false, static: false, final: true, packageName: hu.bme.mit.inf.dslreasoner.domains.alloyexamples) (interface: false, strictFloatingPoint: false, anonymous: false)} to be created
+ * not at the class load time of the outer class,
+ * but rather at the first call to {@link JvmGenericType: hu.bme.mit.inf.dslreasoner.domains.alloyexamples.PatternContent (visibility: PUBLIC, simpleName: PatternContent, identifier: hu.bme.mit.inf.dslreasoner.domains.alloyexamples.PatternContent, deprecated: ) (abstract: false, static: false, final: true, packageName: hu.bme.mit.inf.dslreasoner.domains.alloyexamples) (interface: false, strictFloatingPoint: false, anonymous: false)#instance()}.
+ *
+ * This workaround is required e.g. to support recursion.
+ *
+ */
+ private static class LazyHolder {
+ private final static PatternContent INSTANCE = new PatternContent();
+
+ /**
+ * Statically initializes the query specification after the field {@link #INSTANCE} is assigned.
+ * This initialization order is required to support indirect recursion.
+ *
+ *
The static initializer is defined using a helper field to work around limitations of the code generator.
+ *
+ */
+ private final static Object STATIC_INITIALIZER = ensureInitialized();
+
+ public static Object ensureInitialized() {
+ INSTANCE.ensureInitializedInternal();
+ return null;
+ }
+ }
+
+ private static class GeneratedPQuery extends BaseGeneratedEMFPQuery {
+ private final static PatternContent.GeneratedPQuery INSTANCE = new GeneratedPQuery();
+
+ private final PParameter parameter_o1 = new PParameter("o1", "hu.bme.mit.inf.dslreasoner.domains.alloyexamples.Filesystem.FSObject", new EClassTransitiveInstancesKey((EClass)getClassifierLiteralSafe("FS", "FSObject")), PParameterDirection.INOUT);
+
+ private final PParameter parameter_o2 = new PParameter("o2", "hu.bme.mit.inf.dslreasoner.domains.alloyexamples.Filesystem.FSObject", new EClassTransitiveInstancesKey((EClass)getClassifierLiteralSafe("FS", "FSObject")), PParameterDirection.INOUT);
+
+ private final List parameters = Arrays.asList(parameter_o1, parameter_o2);
+
+ private GeneratedPQuery() {
+ super(PVisibility.PUBLIC);
+ }
+
+ @Override
+ public String getFullyQualifiedName() {
+ return "hu.bme.mit.inf.dslreasoner.domains.alloyexamples.patternContent";
+ }
+
+ @Override
+ public List getParameterNames() {
+ return Arrays.asList("o1","o2");
+ }
+
+ @Override
+ public List getParameters() {
+ return parameters;
+ }
+
+ @Override
+ public Set doGetContainedBodies() {
+ setEvaluationHints(new QueryEvaluationHint(null, QueryEvaluationHint.BackendRequirement.UNSPECIFIED));
+ Set bodies = new LinkedHashSet<>();
+ {
+ PBody body = new PBody(this);
+ PVariable var_o1 = body.getOrCreateVariableByName("o1");
+ PVariable var_o2 = body.getOrCreateVariableByName("o2");
+ new TypeConstraint(body, Tuples.flatTupleOf(var_o1), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("FS", "FSObject")));
+ new TypeConstraint(body, Tuples.flatTupleOf(var_o2), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("FS", "FSObject")));
+ body.setSymbolicParameters(Arrays.asList(
+ new ExportedParameter(body, var_o1, parameter_o1),
+ new ExportedParameter(body, var_o2, parameter_o2)
+ ));
+ // Dir.contents(o1,o2)
+ new TypeConstraint(body, Tuples.flatTupleOf(var_o1), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("FS", "Dir")));
+ PVariable var__virtual_0_ = body.getOrCreateVariableByName(".virtual{0}");
+ new TypeConstraint(body, Tuples.flatTupleOf(var_o1, var__virtual_0_), new EStructuralFeatureInstancesKey(getFeatureLiteral("FS", "Dir", "contents")));
+ new TypeConstraint(body, Tuples.flatTupleOf(var__virtual_0_), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("FS", "FSObject")));
+ new Equality(body, var__virtual_0_, var_o2);
+ bodies.add(body);
+ }
+ return bodies;
+ }
+ }
+}
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