1 files changed, 743 insertions, 0 deletions

diff --git a/Domains/hu.bme.mit.inf.dslreasoner.domains.cps/src-gen/hu/bme/mit/inf/dslreasoner/domains/cps/queries/AvailableMemory.java b/Domains/hu.bme.mit.inf.dslreasoner.domains.cps/src-gen/hu/bme/mit/inf/dslreasoner/domains/cps/queries/AvailableMemory.java
new file mode 100644
index 00000000..930a24ba
--- /dev/null
+++ b/Domains/hu.bme.mit.inf.dslreasoner.domains.cps/src-gen/hu/bme/mit/inf/dslreasoner/domains/cps/queries/AvailableMemory.java
@@ -0,0 +1,743 @@
+/**
+ * Generated from platform:/resource/hu.bme.mit.inf.dslreasoner.domains.cps/src/hu/bme/mit/inf/dslreasoner/domains/cps/queries/CpsQueries.vql
+ */
+package hu.bme.mit.inf.dslreasoner.domains.cps.queries;
+
+import hu.bme.mit.inf.dslreasoner.domains.cps.HostInstance;
+import hu.bme.mit.inf.dslreasoner.domains.cps.queries.TotalMemory;
+import hu.bme.mit.inf.dslreasoner.domains.cps.queries.internal.MemoryRequirement;
+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.aggregators.sum;
+import org.eclipse.viatra.query.runtime.matchers.backend.QueryEvaluationHint;
+import org.eclipse.viatra.query.runtime.matchers.context.common.JavaTransitiveInstancesKey;
+import org.eclipse.viatra.query.runtime.matchers.psystem.IExpressionEvaluator;
+import org.eclipse.viatra.query.runtime.matchers.psystem.IValueProvider;
+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.basicdeferred.AggregatorConstraint;
+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.ExpressionEvaluation;
+import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.TypeFilterConstraint;
+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 @}QueryBasedFeature(feature = "availableMemory")
+ *         pattern availableMemory(Host : HostInstance, Memory : java Integer) {
+ *              find totalMemory(Host, TotalMemory);
+ *              RequiredMemory == sum find memoryRequirement(Host, _, #_);
+ *              Memory == eval(TotalMemory - RequiredMemory);
+ *         }
+ * </pre></code>
+ * 
+ * @see Matcher
+ * @see Match
+ * 
+ */
+@SuppressWarnings("all")
+public final class AvailableMemory extends BaseGeneratedEMFQuerySpecification<AvailableMemory.Matcher> {
+  /**
+   * Pattern-specific match representation of the hu.bme.mit.inf.dslreasoner.domains.cps.queries.availableMemory 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 HostInstance fHost;
+    
+    private Integer fMemory;
+    
+    private static List<String> parameterNames = makeImmutableList("Host", "Memory");
+    
+    private Match(final HostInstance pHost, final Integer pMemory) {
+      this.fHost = pHost;
+      this.fMemory = pMemory;
+    }
+    
+    @Override
+    public Object get(final String parameterName) {
+      if ("Host".equals(parameterName)) return this.fHost;
+      if ("Memory".equals(parameterName)) return this.fMemory;
+      return null;
+    }
+    
+    public HostInstance getHost() {
+      return this.fHost;
+    }
+    
+    public Integer getMemory() {
+      return this.fMemory;
+    }
+    
+    @Override
+    public boolean set(final String parameterName, final Object newValue) {
+      if (!isMutable()) throw new java.lang.UnsupportedOperationException();
+      if ("Host".equals(parameterName) ) {
+          this.fHost = (HostInstance) newValue;
+          return true;
+      }
+      if ("Memory".equals(parameterName) ) {
+          this.fMemory = (Integer) newValue;
+          return true;
+      }
+      return false;
+    }
+    
+    public void setHost(final HostInstance pHost) {
+      if (!isMutable()) throw new java.lang.UnsupportedOperationException();
+      this.fHost = pHost;
+    }
+    
+    public void setMemory(final Integer pMemory) {
+      if (!isMutable()) throw new java.lang.UnsupportedOperationException();
+      this.fMemory = pMemory;
+    }
+    
+    @Override
+    public String patternName() {
+      return "hu.bme.mit.inf.dslreasoner.domains.cps.queries.availableMemory";
+    }
+    
+    @Override
+    public List<String> parameterNames() {
+      return AvailableMemory.Match.parameterNames;
+    }
+    
+    @Override
+    public Object[] toArray() {
+      return new Object[]{fHost, fMemory};
+    }
+    
+    @Override
+    public AvailableMemory.Match toImmutable() {
+      return isMutable() ? newMatch(fHost, fMemory) : this;
+    }
+    
+    @Override
+    public String prettyPrint() {
+      StringBuilder result = new StringBuilder();
+      result.append("\"Host\"=" + prettyPrintValue(fHost) + ", ");
+      result.append("\"Memory\"=" + prettyPrintValue(fMemory));
+      return result.toString();
+    }
+    
+    @Override
+    public int hashCode() {
+      return Objects.hash(fHost, fMemory);
+    }
+    
+    @Override
+    public boolean equals(final Object obj) {
+      if (this == obj)
+          return true;
+      if (obj == null) {
+          return false;
+      }
+      if ((obj instanceof AvailableMemory.Match)) {
+          AvailableMemory.Match other = (AvailableMemory.Match) obj;
+          return Objects.equals(fHost, other.fHost) && Objects.equals(fMemory, other.fMemory);
+      } 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 AvailableMemory specification() {
+      return AvailableMemory.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 AvailableMemory.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 pHost the fixed value of pattern parameter Host, or null if not bound.
+     * @param pMemory the fixed value of pattern parameter Memory, or null if not bound.
+     * @return the new, mutable (partial) match object.
+     * 
+     */
+    public static AvailableMemory.Match newMutableMatch(final HostInstance pHost, final Integer pMemory) {
+      return new Mutable(pHost, pMemory);
+    }
+    
+    /**
+     * 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 pHost the fixed value of pattern parameter Host, or null if not bound.
+     * @param pMemory the fixed value of pattern parameter Memory, or null if not bound.
+     * @return the (partial) match object.
+     * 
+     */
+    public static AvailableMemory.Match newMatch(final HostInstance pHost, final Integer pMemory) {
+      return new Immutable(pHost, pMemory);
+    }
+    
+    private static final class Mutable extends AvailableMemory.Match {
+      Mutable(final HostInstance pHost, final Integer pMemory) {
+        super(pHost, pMemory);
+      }
+      
+      @Override
+      public boolean isMutable() {
+        return true;
+      }
+    }
+    
+    private static final class Immutable extends AvailableMemory.Match {
+      Immutable(final HostInstance pHost, final Integer pMemory) {
+        super(pHost, pMemory);
+      }
+      
+      @Override
+      public boolean isMutable() {
+        return false;
+      }
+    }
+  }
+  
+  /**
+   * Generated pattern matcher API of the hu.bme.mit.inf.dslreasoner.domains.cps.queries.availableMemory 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 @}QueryBasedFeature(feature = "availableMemory")
+   * pattern availableMemory(Host : HostInstance, Memory : java Integer) {
+   *    find totalMemory(Host, TotalMemory);
+   *    RequiredMemory == sum find memoryRequirement(Host, _, #_);
+   *    Memory == eval(TotalMemory - RequiredMemory);
+   * }
+   * </pre></code>
+   * 
+   * @see Match
+   * @see AvailableMemory
+   * 
+   */
+  public static class Matcher extends BaseMatcher<AvailableMemory.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 AvailableMemory.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 AvailableMemory.Matcher create() {
+      return new Matcher();
+    }
+    
+    private static final int POSITION_HOST = 0;
+    
+    private static final int POSITION_MEMORY = 1;
+    
+    private static final Logger LOGGER = ViatraQueryLoggingUtil.getLogger(AvailableMemory.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 pHost the fixed value of pattern parameter Host, or null if not bound.
+     * @param pMemory the fixed value of pattern parameter Memory, or null if not bound.
+     * @return matches represented as a Match object.
+     * 
+     */
+    public Collection<AvailableMemory.Match> getAllMatches(final HostInstance pHost, final Integer pMemory) {
+      return rawStreamAllMatches(new Object[]{pHost, pMemory}).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 pHost the fixed value of pattern parameter Host, or null if not bound.
+     * @param pMemory the fixed value of pattern parameter Memory, or null if not bound.
+     * @return a stream of matches represented as a Match object.
+     * 
+     */
+    public Stream<AvailableMemory.Match> streamAllMatches(final HostInstance pHost, final Integer pMemory) {
+      return rawStreamAllMatches(new Object[]{pHost, pMemory});
+    }
+    
+    /**
+     * 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 pHost the fixed value of pattern parameter Host, or null if not bound.
+     * @param pMemory the fixed value of pattern parameter Memory, or null if not bound.
+     * @return a match represented as a Match object, or null if no match is found.
+     * 
+     */
+    public Optional<AvailableMemory.Match> getOneArbitraryMatch(final HostInstance pHost, final Integer pMemory) {
+      return rawGetOneArbitraryMatch(new Object[]{pHost, pMemory});
+    }
+    
+    /**
+     * 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 pHost the fixed value of pattern parameter Host, or null if not bound.
+     * @param pMemory the fixed value of pattern parameter Memory, or null if not bound.
+     * @return true if the input is a valid (partial) match of the pattern.
+     * 
+     */
+    public boolean hasMatch(final HostInstance pHost, final Integer pMemory) {
+      return rawHasMatch(new Object[]{pHost, pMemory});
+    }
+    
+    /**
+     * Returns the number of all matches of the pattern that conform to the given fixed values of some parameters.
+     * @param pHost the fixed value of pattern parameter Host, or null if not bound.
+     * @param pMemory the fixed value of pattern parameter Memory, or null if not bound.
+     * @return the number of pattern matches found.
+     * 
+     */
+    public int countMatches(final HostInstance pHost, final Integer pMemory) {
+      return rawCountMatches(new Object[]{pHost, pMemory});
+    }
+    
+    /**
+     * 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 pHost the fixed value of pattern parameter Host, or null if not bound.
+     * @param pMemory the fixed value of pattern parameter Memory, 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 HostInstance pHost, final Integer pMemory, final Consumer<? super AvailableMemory.Match> processor) {
+      return rawForOneArbitraryMatch(new Object[]{pHost, pMemory}, 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 pHost the fixed value of pattern parameter Host, or null if not bound.
+     * @param pMemory the fixed value of pattern parameter Memory, or null if not bound.
+     * @return the (partial) match object.
+     * 
+     */
+    public AvailableMemory.Match newMatch(final HostInstance pHost, final Integer pMemory) {
+      return AvailableMemory.Match.newMatch(pHost, pMemory);
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Host.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    protected Stream<HostInstance> rawStreamAllValuesOfHost(final Object[] parameters) {
+      return rawStreamAllValues(POSITION_HOST, parameters).map(HostInstance.class::cast);
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Host.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Set<HostInstance> getAllValuesOfHost() {
+      return rawStreamAllValuesOfHost(emptyArray()).collect(Collectors.toSet());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Host.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Stream<HostInstance> streamAllValuesOfHost() {
+      return rawStreamAllValuesOfHost(emptyArray());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Host.
+     * </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<HostInstance> streamAllValuesOfHost(final AvailableMemory.Match partialMatch) {
+      return rawStreamAllValuesOfHost(partialMatch.toArray());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Host.
+     * </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<HostInstance> streamAllValuesOfHost(final Integer pMemory) {
+      return rawStreamAllValuesOfHost(new Object[]{null, pMemory});
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Host.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Set<HostInstance> getAllValuesOfHost(final AvailableMemory.Match partialMatch) {
+      return rawStreamAllValuesOfHost(partialMatch.toArray()).collect(Collectors.toSet());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Host.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Set<HostInstance> getAllValuesOfHost(final Integer pMemory) {
+      return rawStreamAllValuesOfHost(new Object[]{null, pMemory}).collect(Collectors.toSet());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Memory.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    protected Stream<Integer> rawStreamAllValuesOfMemory(final Object[] parameters) {
+      return rawStreamAllValues(POSITION_MEMORY, parameters).map(Integer.class::cast);
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Memory.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Set<Integer> getAllValuesOfMemory() {
+      return rawStreamAllValuesOfMemory(emptyArray()).collect(Collectors.toSet());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Memory.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Stream<Integer> streamAllValuesOfMemory() {
+      return rawStreamAllValuesOfMemory(emptyArray());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Memory.
+     * </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<Integer> streamAllValuesOfMemory(final AvailableMemory.Match partialMatch) {
+      return rawStreamAllValuesOfMemory(partialMatch.toArray());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Memory.
+     * </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<Integer> streamAllValuesOfMemory(final HostInstance pHost) {
+      return rawStreamAllValuesOfMemory(new Object[]{pHost, null});
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Memory.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Set<Integer> getAllValuesOfMemory(final AvailableMemory.Match partialMatch) {
+      return rawStreamAllValuesOfMemory(partialMatch.toArray()).collect(Collectors.toSet());
+    }
+    
+    /**
+     * Retrieve the set of values that occur in matches for Memory.
+     * @return the Set of all values or empty set if there are no matches
+     * 
+     */
+    public Set<Integer> getAllValuesOfMemory(final HostInstance pHost) {
+      return rawStreamAllValuesOfMemory(new Object[]{pHost, null}).collect(Collectors.toSet());
+    }
+    
+    @Override
+    protected AvailableMemory.Match tupleToMatch(final Tuple t) {
+      try {
+          return AvailableMemory.Match.newMatch((HostInstance) t.get(POSITION_HOST), (Integer) t.get(POSITION_MEMORY));
+      } catch(ClassCastException e) {
+          LOGGER.error("Element(s) in tuple not properly typed!",e);
+          return null;
+      }
+    }
+    
+    @Override
+    protected AvailableMemory.Match arrayToMatch(final Object[] match) {
+      try {
+          return AvailableMemory.Match.newMatch((HostInstance) match[POSITION_HOST], (Integer) match[POSITION_MEMORY]);
+      } catch(ClassCastException e) {
+          LOGGER.error("Element(s) in array not properly typed!",e);
+          return null;
+      }
+    }
+    
+    @Override
+    protected AvailableMemory.Match arrayToMatchMutable(final Object[] match) {
+      try {
+          return AvailableMemory.Match.newMutableMatch((HostInstance) match[POSITION_HOST], (Integer) match[POSITION_MEMORY]);
+      } 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<AvailableMemory.Matcher> querySpecification() {
+      return AvailableMemory.instance();
+    }
+  }
+  
+  private AvailableMemory() {
+    super(GeneratedPQuery.INSTANCE);
+  }
+  
+  /**
+   * @return the singleton instance of the query specification
+   * @throws ViatraQueryRuntimeException if the pattern definition could not be loaded
+   * 
+   */
+  public static AvailableMemory instance() {
+    try{
+        return LazyHolder.INSTANCE;
+    } catch (ExceptionInInitializerError err) {
+        throw processInitializerError(err);
+    }
+  }
+  
+  @Override
+  protected AvailableMemory.Matcher instantiate(final ViatraQueryEngine engine) {
+    return AvailableMemory.Matcher.on(engine);
+  }
+  
+  @Override
+  public AvailableMemory.Matcher instantiate() {
+    return AvailableMemory.Matcher.create();
+  }
+  
+  @Override
+  public AvailableMemory.Match newEmptyMatch() {
+    return AvailableMemory.Match.newEmptyMatch();
+  }
+  
+  @Override
+  public AvailableMemory.Match newMatch(final Object... parameters) {
+    return AvailableMemory.Match.newMatch((hu.bme.mit.inf.dslreasoner.domains.cps.HostInstance) parameters[0], (java.lang.Integer) parameters[1]);
+  }
+  
+  /**
+   * Inner class allowing the singleton instance of {@link JvmGenericType: hu.bme.mit.inf.dslreasoner.domains.cps.queries.AvailableMemory (visibility: PUBLIC, simpleName: AvailableMemory, identifier: hu.bme.mit.inf.dslreasoner.domains.cps.queries.AvailableMemory, deprecated: <unset>) (abstract: false, static: false, final: true, packageName: hu.bme.mit.inf.dslreasoner.domains.cps.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: hu.bme.mit.inf.dslreasoner.domains.cps.queries.AvailableMemory (visibility: PUBLIC, simpleName: AvailableMemory, identifier: hu.bme.mit.inf.dslreasoner.domains.cps.queries.AvailableMemory, deprecated: <unset>) (abstract: false, static: false, final: true, packageName: hu.bme.mit.inf.dslreasoner.domains.cps.queries) (interface: false, strictFloatingPoint: false, anonymous: false)#instance()}.
+   * 
+   * <p> This workaround is required e.g. to support recursion.
+   * 
+   */
+  private static class LazyHolder {
+    private static final AvailableMemory INSTANCE = new AvailableMemory();
+    
+    /**
+     * 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 static final Object STATIC_INITIALIZER = ensureInitialized();
+    
+    public static Object ensureInitialized() {
+      INSTANCE.ensureInitializedInternal();
+      return null;
+    }
+  }
+  
+  private static class GeneratedPQuery extends BaseGeneratedEMFPQuery {
+    private static final AvailableMemory.GeneratedPQuery INSTANCE = new GeneratedPQuery();
+    
+    private final PParameter parameter_Host = new PParameter("Host", "hu.bme.mit.inf.dslreasoner.domains.cps.HostInstance", new EClassTransitiveInstancesKey((EClass)getClassifierLiteralSafe("http://www.example.org/cps", "HostInstance")), PParameterDirection.INOUT);
+    
+    private final PParameter parameter_Memory = new PParameter("Memory", "java.lang.Integer", new JavaTransitiveInstancesKey(java.lang.Integer.class), PParameterDirection.INOUT);
+    
+    private final List<PParameter> parameters = Arrays.asList(parameter_Host, parameter_Memory);
+    
+    private GeneratedPQuery() {
+      super(PVisibility.PUBLIC);
+    }
+    
+    @Override
+    public String getFullyQualifiedName() {
+      return "hu.bme.mit.inf.dslreasoner.domains.cps.queries.availableMemory";
+    }
+    
+    @Override
+    public List<String> getParameterNames() {
+      return Arrays.asList("Host","Memory");
+    }
+    
+    @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_Host = body.getOrCreateVariableByName("Host");
+          PVariable var_Memory = body.getOrCreateVariableByName("Memory");
+          PVariable var_TotalMemory = body.getOrCreateVariableByName("TotalMemory");
+          PVariable var_RequiredMemory = body.getOrCreateVariableByName("RequiredMemory");
+          PVariable var___0_ = body.getOrCreateVariableByName("_<0>");
+          PVariable var___1_ = body.getOrCreateVariableByName("_<1>");
+          new TypeConstraint(body, Tuples.flatTupleOf(var_Host), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.example.org/cps", "HostInstance")));
+          new TypeFilterConstraint(body, Tuples.flatTupleOf(var_Memory), new JavaTransitiveInstancesKey(java.lang.Integer.class));
+          body.setSymbolicParameters(Arrays.<ExportedParameter>asList(
+             new ExportedParameter(body, var_Host, parameter_Host),
+             new ExportedParameter(body, var_Memory, parameter_Memory)
+          ));
+          //    find totalMemory(Host, TotalMemory)
+          new PositivePatternCall(body, Tuples.flatTupleOf(var_Host, var_TotalMemory), TotalMemory.instance().getInternalQueryRepresentation());
+          //    RequiredMemory == sum find memoryRequirement(Host, _, #_)
+          PVariable var__virtual_0_ = body.getOrCreateVariableByName(".virtual{0}");
+          new AggregatorConstraint(new sum().getAggregatorLogic(Integer.class), body, Tuples.flatTupleOf(var_Host, var___0_, var___1_), MemoryRequirement.instance().getInternalQueryRepresentation(), var__virtual_0_, 2);
+          new Equality(body, var_RequiredMemory, var__virtual_0_);
+          //    Memory == eval(TotalMemory - RequiredMemory)
+          PVariable var__virtual_1_ = body.getOrCreateVariableByName(".virtual{1}");
+          new ExpressionEvaluation(body, new IExpressionEvaluator() {
+          
+              @Override
+              public String getShortDescription() {
+                  return "Expression evaluation from pattern availableMemory";
+              }
+              
+              @Override
+              public Iterable<String> getInputParameterNames() {
+                  return Arrays.asList("RequiredMemory", "TotalMemory");}
+          
+              @Override
+              public Object evaluateExpression(IValueProvider provider) throws Exception {
+                  Integer RequiredMemory = (Integer) provider.getValue("RequiredMemory");
+                  Integer TotalMemory = (Integer) provider.getValue("TotalMemory");
+                  return evaluateExpression_1_1(RequiredMemory, TotalMemory);
+              }
+          },  var__virtual_1_ ); 
+          new Equality(body, var_Memory, var__virtual_1_);
+          bodies.add(body);
+      }
+      {
+          PAnnotation annotation = new PAnnotation("QueryBasedFeature");
+          annotation.addAttribute("feature", "availableMemory");
+          addAnnotation(annotation);
+      }
+      return bodies;
+    }
+  }
+  
+  private static int evaluateExpression_1_1(final Integer RequiredMemory, final Integer TotalMemory) {
+    return ((TotalMemory).intValue() - (RequiredMemory).intValue());
+  }
+}