1 files changed, 703 insertions, 0 deletions
diff --git a/Tests/ca.mcgill.ecse.dslreasoner.standalone.test/src-gen/ca/mcgill/ecse/dslreasoner/standalone/test/yakindu/queries/IncomingToEntry.java b/Tests/ca.mcgill.ecse.dslreasoner.standalone.test/src-gen/ca/mcgill/ecse/dslreasoner/standalone/test/yakindu/queries/IncomingToEntry.java
new file mode 100644
index 00000000..ed8ca3e5
--- /dev/null
+++ b/Tests/ca.mcgill.ecse.dslreasoner.standalone.test/src-gen/ca/mcgill/ecse/dslreasoner/standalone/test/yakindu/queries/IncomingToEntry.java
@@ -0,0 +1,703 @@
+/**
+ * Generated from platform:/resource/ca.mcgill.ecse.dslreasoner.standalone.test/queries/ca/mcgill/ecse/dslreasoner/standalone/test/yakindu/queries/yakinduPatterns.vql
+ */
+package ca.mcgill.ecse.dslreasoner.standalone.test.yakindu.queries;
+import ca.mcgill.ecse.dslreasoner.standalone.test.yakindu.Entry;
+import ca.mcgill.ecse.dslreasoner.standalone.test.yakindu.Transition;
+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.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.
+ * 
+ * <p>Original source:
+ *         <code><pre>
+ *         {@literal @}Constraint(severity="error", message="error", key = {e})
+ *         pattern incomingToEntry(t : Transition, e : Entry) {
+ *              find transition(t, _, e);
+ *         }
+ * </pre></code>
+ * 
+ * @see Matcher
+ * @see Match
+ * 
+ */
+@SuppressWarnings("all")
+public final class IncomingToEntry extends BaseGeneratedEMFQuerySpecification<IncomingToEntry.Matcher> {
+  /**
+   * Pattern-specific match representation of the ca.mcgill.ecse.dslreasoner.standalone.test.yakindu.queries.incomingToEntry pattern,
+   * to be used in conjunction with {@link Matcher}.
+   * 
+   * <p>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 Transition fT;
+    
+    private Entry fE;
+    
+    private static List<String> parameterNames = makeImmutableList("t", "e");
+    
+    private Match(final Transition pT, final Entry pE) {
+      this.fT = pT;
+      this.fE = pE;
+    }
+    
+    @Override
+    public Object get(final String parameterName) {
+      if ("t".equals(parameterName)) return this.fT;
+      if ("e".equals(parameterName)) return this.fE;
+      return null;
+    }
+    
+    public Transition getT() {
+      return this.fT;
+    }
+    
+    public Entry getE() {
+      return this.fE;
+    }
+    
+    @Override
+    public boolean set(final String parameterName, final Object newValue) {
+      if (!isMutable()) throw new java.lang.UnsupportedOperationException();
+      if ("t".equals(parameterName) ) {
+          this.fT = (Transition) newValue;
+          return true;
+      }
+      if ("e".equals(parameterName) ) {
+          this.fE = (Entry) newValue;
+          return true;
+      }
+      return false;
+    }
+    
+    public void setT(final Transition pT) {
+      if (!isMutable()) throw new java.lang.UnsupportedOperationException();
+      this.fT = pT;
+    }
+    
+    public void setE(final Entry pE) {
+      if (!isMutable()) throw new java.lang.UnsupportedOperationException();
+      this.fE = pE;
+    }
+    
+    @Override
+    public String patternName() {
+      return "ca.mcgill.ecse.dslreasoner.standalone.test.yakindu.queries.incomingToEntry";
+    }
+    
+    @Override
+    public List<String> parameterNames() {
+      return IncomingToEntry.Match.parameterNames;
+    }
+    
+    @Override
+    public Object[] toArray() {
+      return new Object[]{fT, fE};
+    }
+    
+    @Override
+    public IncomingToEntry.Match toImmutable() {
+      return isMutable() ? newMatch(fT, fE) : this;
+    }
+    
+    @Override
+    public String prettyPrint() {
+      StringBuilder result = new StringBuilder();
+      result.append("\"t\"=" + prettyPrintValue(fT) + ", ");
+      result.append("\"e\"=" + prettyPrintValue(fE));
+      return result.toString();
+    }
+    
+    @Override
+    public int hashCode() {
+      return Objects.hash(fT, fE);
+    }
+    
+    @Override
+    public boolean equals(final Object obj) {
+      if (this == obj)
+          return true;
+      if (obj == null) {
+          return false;
+      }
+      if ((obj instanceof IncomingToEntry.Match)) {
+          IncomingToEntry.Match other = (IncomingToEntry.Match) obj;
+          return Objects.equals(fT, other.fT) && Objects.equals(fE, other.fE);
+      } 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 IncomingToEntry specification() {
+      return IncomingToEntry.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 IncomingToEntry.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 pT the fixed value of pattern parameter t, or null if not bound.
+     * @param pE the fixed value of pattern parameter e, or null if not bound.
+     * @return the new, mutable (partial) match object.
+     * 
+     */
+    public static IncomingToEntry.Match newMutableMatch(final Transition pT, final Entry pE) {
+      return new Mutable(pT, pE);
+    }
+    
+    /**
+     * Returns a new (partial) match.
+     * This can be used e.g. to call the matcher with a partial match.
+     * <p>The returned match will be immutable. Use {@link #newEmptyMatch()} to obtain a mutable match object.
+     * @param pT the fixed value of pattern parameter t, or null if not bound.
+     * @param pE the fixed value of pattern parameter e, or null if not bound.
+     * @return the (partial) match object.
+     * 
+     */
+    public static IncomingToEntry.Match newMatch(final Transition pT, final Entry pE) {
+      return new Immutable(pT, pE);
+    }
+    
+    private static final class Mutable extends IncomingToEntry.Match {
+      Mutable(final Transition pT, final Entry pE) {
+        super(pT, pE);
+      }
+      
+      @Override
+      public boolean isMutable() {
+        return true;
+      }
+    }
+    
+    private static final class Immutable extends IncomingToEntry.Match {
+      Immutable(final Transition pT, final Entry pE) {
+        super(pT, pE);
+      }
+      
+      @Override
+      public boolean isMutable() {
+        return false;
+      }
+    }
+  }
+  
+  /**
+   * Generated pattern matcher API of the ca.mcgill.ecse.dslreasoner.standalone.test.yakindu.queries.incomingToEntry pattern,
+   * providing pattern-specific query methods.
+   * 
+   * <p>Use the pattern matcher on a given model via {@link #on(ViatraQueryEngine)},
+   * e.g. in conjunction with {@link ViatraQueryEngine#on(QueryScope)}.
+   * 
+   * <p>Matches of the pattern will be represented as {@link Match}.
+   * 
+   * <p>Original source:
+   * <code><pre>
+   * {@literal @}Constraint(severity="error", message="error", key = {e})
+   * pattern incomingToEntry(t : Transition, e : Entry) {
+   *    find transition(t, _, e);
+   * }
+   * </pre></code>
+   * 
+   * @see Match
+   * @see IncomingToEntry
+   * 
+   */
+  public static class Matcher extends BaseMatcher<IncomingToEntry.Match> {
+    /**
+     * 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 IncomingToEntry.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 IncomingToEntry.Matcher create() {
+      return new Matcher();
+    }
+    
+    private final static int POSITION_T = 0;
+    
+    private final static int POSITION_E = 1;
+    
+    private final static Logger LOGGER = ViatraQueryLoggingUtil.getLogger(IncomingToEntry.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 pT the fixed value of pattern parameter t, or null if not bound.
+     * @param pE the fixed value of pattern parameter e, or null if not bound.
+     * @return matches represented as a Match object.
+     * 
+     */
+    public Collection<IncomingToEntry.Match> getAllMatches(final Transition pT, final Entry pE) {
+      return rawStreamAllMatches(new Object[]{pT, pE}).collect(Collectors.toSet());
+    }
+    
+    /**
+     * Returns a stream of all matches of the pattern that conform to the given fixed values of some parameters.
+     * </p>
+     * <strong>NOTE</strong>: 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 <strong>undefined</strong>.
+     * In such cases, either rely on {@link #getAllMatches()} or collect the results of the stream in end-user code.
+     * @param pT the fixed value of pattern parameter t, or null if not bound.
+     * @param pE the fixed value of pattern parameter e, or null if not bound.
+     * @return a stream of matches represented as a Match object.
+     * 
+     */
+    public Stream<IncomingToEntry.Match> streamAllMatches(final Transition pT, final Entry pE) {
+      return rawStreamAllMatches(new Object[]{pT, pE});
+    }
+    
+    /**
+     * 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 pT the fixed value of pattern parameter t, or null if not bound.
+     * @param pE the fixed value of pattern parameter e, or null if not bound.
+     * @return a match represented as a Match object, or null if no match is found.
+     * 
+     */
+    public Optional<IncomingToEntry.Match> getOneArbitraryMatch(final Transition pT, final Entry pE) {
+      return rawGetOneArbitraryMatch(new Object[]{pT, pE});
+    }
+    
+    /**
+     * 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 pT the fixed value of pattern parameter t, or null if not bound.
+     * @param pE the fixed value of pattern parameter e, or null if not bound.
+     * @return true if the input is a valid (partial) match of the pattern.
+     * 
+     */
+    public boolean hasMatch(final Transition pT, final Entry pE) {
+      return rawHasMatch(new Object[]{pT, pE});
+    }
+    
+    /**
+     * Returns the number of all matches of the pattern that conform to the given fixed values of some parameters.
+     * @param pT the fixed value of pattern parameter t, or null if not bound.
+     * @param pE the fixed value of pattern parameter e, or null if not bound.
+     * @return the number of pattern matches found.
+     * 
+     */
+    public int countMatches(final Transition pT, final Entry pE) {
+      return rawCountMatches(new Object[]{pT, pE});
+    }
+    
+    /**
+     * 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 pT the fixed value of pattern parameter t, or null if not bound.
+     * @param pE the fixed value of pattern parameter e, 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 Transition pT, final Entry pE, final Consumer<? super IncomingToEntry.Match> processor) {
+      return rawForOneArbitraryMatch(new Object[]{pT, pE}, processor);
+    }
+    
+    /**
+     * Returns a new (partial) match.
+     * This can be used e.g. to call the matcher with a partial match.
+     * <p>The returned match will be immutable. Use {@link #newEmptyMatch()} to obtain a mutable match object.
+     * @param pT the fixed value of pattern parameter t, or null if not bound.
+     * @param pE the fixed value of pattern parameter e, or null if not bound.
+     * @return the (partial) match object.
+     * 
+     */
+    public IncomingToEntry.Match newMatch(final Transition pT, final Entry pE) {
+      return IncomingToEntry.Match.newMatch(pT, pE);
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for t.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    protected Stream<Transition> rawStreamAllValuesOft(final Object[] parameters) {
+      return rawStreamAllValues(POSITION_T, parameters).map(Transition.class::cast);
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for t.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Set<Transition> getAllValuesOft() {
+      return rawStreamAllValuesOft(emptyArray()).collect(Collectors.toSet());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for t.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Stream<Transition> streamAllValuesOft() {
+      return rawStreamAllValuesOft(emptyArray());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for t.
+     * </p>
+     * <strong>NOTE</strong>: 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 <strong>undefined</strong>.
+     * 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<Transition> streamAllValuesOft(final IncomingToEntry.Match partialMatch) {
+      return rawStreamAllValuesOft(partialMatch.toArray());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for t.
+     * </p>
+     * <strong>NOTE</strong>: 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 <strong>undefined</strong>.
+     * 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<Transition> streamAllValuesOft(final Entry pE) {
+      return rawStreamAllValuesOft(new Object[]{null, pE});
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for t.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Set<Transition> getAllValuesOft(final IncomingToEntry.Match partialMatch) {
+      return rawStreamAllValuesOft(partialMatch.toArray()).collect(Collectors.toSet());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for t.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Set<Transition> getAllValuesOft(final Entry pE) {
+      return rawStreamAllValuesOft(new Object[]{null, pE}).collect(Collectors.toSet());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for e.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    protected Stream<Entry> rawStreamAllValuesOfe(final Object[] parameters) {
+      return rawStreamAllValues(POSITION_E, parameters).map(Entry.class::cast);
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for e.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Set<Entry> getAllValuesOfe() {
+      return rawStreamAllValuesOfe(emptyArray()).collect(Collectors.toSet());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for e.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Stream<Entry> streamAllValuesOfe() {
+      return rawStreamAllValuesOfe(emptyArray());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for e.
+     * </p>
+     * <strong>NOTE</strong>: 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 <strong>undefined</strong>.
+     * 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<Entry> streamAllValuesOfe(final IncomingToEntry.Match partialMatch) {
+      return rawStreamAllValuesOfe(partialMatch.toArray());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for e.
+     * </p>
+     * <strong>NOTE</strong>: 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 <strong>undefined</strong>.
+     * 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<Entry> streamAllValuesOfe(final Transition pT) {
+      return rawStreamAllValuesOfe(new Object[]{pT, null});
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for e.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Set<Entry> getAllValuesOfe(final IncomingToEntry.Match partialMatch) {
+      return rawStreamAllValuesOfe(partialMatch.toArray()).collect(Collectors.toSet());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for e.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Set<Entry> getAllValuesOfe(final Transition pT) {
+      return rawStreamAllValuesOfe(new Object[]{pT, null}).collect(Collectors.toSet());
+    }
+    
+    @Override
+    protected IncomingToEntry.Match tupleToMatch(final Tuple t) {
+      try {
+          return IncomingToEntry.Match.newMatch((Transition) t.get(POSITION_T), (Entry) t.get(POSITION_E));
+      } catch(ClassCastException e) {
+          LOGGER.error("Element(s) in tuple not properly typed!",e);
+          return null;
+      }
+    }
+    
+    @Override
+    protected IncomingToEntry.Match arrayToMatch(final Object[] match) {
+      try {
+          return IncomingToEntry.Match.newMatch((Transition) match[POSITION_T], (Entry) match[POSITION_E]);
+      } catch(ClassCastException e) {
+          LOGGER.error("Element(s) in array not properly typed!",e);
+          return null;
+      }
+    }
+    
+    @Override
+    protected IncomingToEntry.Match arrayToMatchMutable(final Object[] match) {
+      try {
+          return IncomingToEntry.Match.newMutableMatch((Transition) match[POSITION_T], (Entry) match[POSITION_E]);
+      } 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<IncomingToEntry.Matcher> querySpecification() {
+      return IncomingToEntry.instance();
+    }
+  }
+  
+  private IncomingToEntry() {
+    super(GeneratedPQuery.INSTANCE);
+  }
+  
+  /**
+   * @return the singleton instance of the query specification
+   * @throws ViatraQueryRuntimeException if the pattern definition could not be loaded
+   * 
+   */
+  public static IncomingToEntry instance() {
+    try{
+        return LazyHolder.INSTANCE;
+    } catch (ExceptionInInitializerError err) {
+        throw processInitializerError(err);
+    }
+  }
+  
+  @Override
+  protected IncomingToEntry.Matcher instantiate(final ViatraQueryEngine engine) {
+    return IncomingToEntry.Matcher.on(engine);
+  }
+  
+  @Override
+  public IncomingToEntry.Matcher instantiate() {
+    return IncomingToEntry.Matcher.create();
+  }
+  
+  @Override
+  public IncomingToEntry.Match newEmptyMatch() {
+    return IncomingToEntry.Match.newEmptyMatch();
+  }
+  
+  @Override
+  public IncomingToEntry.Match newMatch(final Object... parameters) {
+    return IncomingToEntry.Match.newMatch((ca.mcgill.ecse.dslreasoner.standalone.test.yakindu.Transition) parameters[0], (ca.mcgill.ecse.dslreasoner.standalone.test.yakindu.Entry) parameters[1]);
+  }
+  
+  /**
+   * Inner class allowing the singleton instance of {@link JvmGenericType: ca.mcgill.ecse.dslreasoner.standalone.test.yakindu.queries.IncomingToEntry (visibility: PUBLIC, simpleName: IncomingToEntry, identifier: ca.mcgill.ecse.dslreasoner.standalone.test.yakindu.queries.IncomingToEntry, deprecated: <unset>) (abstract: false, static: false, final: true, packageName: ca.mcgill.ecse.dslreasoner.standalone.test.yakindu.queries) (interface: false, strictFloatingPoint: false, anonymous: false)} to be created 
+   *     <b>not</b> at the class load time of the outer class, 
+   *     but rather at the first call to {@link JvmGenericType: ca.mcgill.ecse.dslreasoner.standalone.test.yakindu.queries.IncomingToEntry (visibility: PUBLIC, simpleName: IncomingToEntry, identifier: ca.mcgill.ecse.dslreasoner.standalone.test.yakindu.queries.IncomingToEntry, deprecated: <unset>) (abstract: false, static: false, final: true, packageName: ca.mcgill.ecse.dslreasoner.standalone.test.yakindu.queries) (interface: false, strictFloatingPoint: false, anonymous: false)#instance()}.
+   * 
+   * <p> This workaround is required e.g. to support recursion.
+   * 
+   */
+  private static class LazyHolder {
+    private final static IncomingToEntry INSTANCE = new IncomingToEntry();
+    
+    /**
+     * Statically initializes the query specification <b>after</b> the field {@link #INSTANCE} is assigned.
+     * This initialization order is required to support indirect recursion.
+     * 
+     * <p> 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 IncomingToEntry.GeneratedPQuery INSTANCE = new GeneratedPQuery();
+    
+    private final PParameter parameter_t = new PParameter("t", "ca.mcgill.ecse.dslreasoner.standalone.test.yakindu.Transition", new EClassTransitiveInstancesKey((EClass)getClassifierLiteralSafe("YakinduMetamodel", "Transition")), PParameterDirection.INOUT);
+    
+    private final PParameter parameter_e = new PParameter("e", "ca.mcgill.ecse.dslreasoner.standalone.test.yakindu.Entry", new EClassTransitiveInstancesKey((EClass)getClassifierLiteralSafe("YakinduMetamodel", "Entry")), PParameterDirection.INOUT);
+    
+    private final List<PParameter> parameters = Arrays.asList(parameter_t, parameter_e);
+    
+    private GeneratedPQuery() {
+      super(PVisibility.PUBLIC);
+    }
+    
+    @Override
+    public String getFullyQualifiedName() {
+      return "ca.mcgill.ecse.dslreasoner.standalone.test.yakindu.queries.incomingToEntry";
+    }
+    
+    @Override
+    public List<String> getParameterNames() {
+      return Arrays.asList("t","e");
+    }
+    
+    @Override
+    public List<PParameter> getParameters() {
+      return parameters;
+    }
+    
+    @Override
+    public Set<PBody> doGetContainedBodies() {
+      setEvaluationHints(new QueryEvaluationHint(null, QueryEvaluationHint.BackendRequirement.UNSPECIFIED));
+      Set<PBody> bodies = new LinkedHashSet<>();
+      {
+          PBody body = new PBody(this);
+          PVariable var_t = body.getOrCreateVariableByName("t");
+          PVariable var_e = body.getOrCreateVariableByName("e");
+          PVariable var___0_ = body.getOrCreateVariableByName("_<0>");
+          new TypeConstraint(body, Tuples.flatTupleOf(var_t), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("YakinduMetamodel", "Transition")));
+          new TypeConstraint(body, Tuples.flatTupleOf(var_e), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("YakinduMetamodel", "Entry")));
+          body.setSymbolicParameters(Arrays.<ExportedParameter>asList(
+             new ExportedParameter(body, var_t, parameter_t),
+             new ExportedParameter(body, var_e, parameter_e)
+          ));
+          //    find transition(t, _, e)
+          new PositivePatternCall(body, Tuples.flatTupleOf(var_t, var___0_, var_e), ca.mcgill.ecse.dslreasoner.standalone.test.yakindu.queries.Transition.instance().getInternalQueryRepresentation());
+          bodies.add(body);
+      }
+      {
+          PAnnotation annotation = new PAnnotation("Constraint");
+          annotation.addAttribute("severity", "error");
+          annotation.addAttribute("message", "error");
+          annotation.addAttribute("key", Arrays.asList(new Object[] {
+                              new ParameterReference("e")
+                              }));
+          addAnnotation(annotation);
+      }
+      return bodies;
+    }
+  }
+}