Package org.drools.util

Examples of org.drools.util.ObjectHashMap

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    /**
     * Rete visits each of its ObjectTypeNodes.
     */
    public void visitRete(final Rete rete) {
        final ObjectHashMap map = rete.getObjectTypeNodes();

        final Iterator it = map.newIterator();
        for ( ObjectEntry entry = (ObjectEntry) it.next(); entry != null; entry = (ObjectEntry) it.next() ) {
            visit( entry.getValue() );
        }
    }
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    /**
     * Creates and return the node memory
     */
    public Object createMemory(final RuleBaseConfiguration config) {
        return new ObjectHashMap();
    }
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        // creating a dummy fact handle to wrap the tuple
        final InternalFactHandle handle = workingMemory.getFactHandleFactory().newFactHandle( tuple );
       
        if ( this.tupleMemoryEnabled ) {
            final ObjectHashMap memory = (ObjectHashMap) workingMemory.getNodeMemory( this );
            // add it to a memory mapping
            memory.put( tuple,
                        handle );
        }

        // propagate it
        this.sink.propagateAssertObject( handle,
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     */
    public void retractTuple(final ReteTuple tuple,
                             final PropagationContext context,
                             final InternalWorkingMemory workingMemory) {

        final ObjectHashMap memory = (ObjectHashMap) workingMemory.getNodeMemory( this );

        // retrieve handle from memory
        final InternalFactHandle handle = (InternalFactHandle) memory.remove( tuple );

        // propagate a retract for it
        this.sink.propagateRetractObject( handle,
                                          context,
                                          workingMemory,
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    public void updateSink(final ObjectSink sink,
                           final PropagationContext context,
                           final InternalWorkingMemory workingMemory) {

        final ObjectHashMap memory = (ObjectHashMap) workingMemory.getNodeMemory( this );

        final Iterator it = memory.iterator();

        // iterates over all propagated handles and assert them to the new sink
        for ( ObjectEntry entry = (ObjectEntry) it.next(); entry != null; entry = (ObjectEntry) it.next() ) {
            sink.assertObject( (InternalFactHandle) entry.getValue(),
                               context,
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        return this.tupleMemory;
    }

    public ObjectHashMap getCreatedHandles() {
        if ( this.createdHandles == null ) {
            this.createdHandles = new ObjectHashMap();
        }
        return this.createdHandles;
    }
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    public TruthMaintenanceSystem(final AbstractWorkingMemory workingMemory) {
        this.workingMemory = workingMemory;

        this.justifiedMap = new PrimitiveLongMap( 8,
                                                  32 );
        this.assertMap = new ObjectHashMap();
        this.assertMap.setComparator( EqualityKeyComparator.getInstance() );
    }
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    // Constructors
    // ------------------------------------------------------------

    public Rete(InternalRuleBase ruleBase) {
        super( 0 );
        this.objectTypeNodes = new ObjectHashMap();
        this.ruleBase = ruleBase;
    }
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     *            The working memory session.
     */
    public void assertObject(final InternalFactHandle handle,
                             final PropagationContext context,
                             final InternalWorkingMemory workingMemory) {
        final ObjectHashMap memory = (ObjectHashMap) workingMemory.getNodeMemory( this );

        Object object = handle.getObject();

        ObjectTypeConf ojectTypeConf;
        if ( object instanceof Fact ) {
            String key = ((Fact) object).getFactTemplate().getName();
            ojectTypeConf = (ObjectTypeConf) memory.get( key );
            if ( ojectTypeConf == null ) {
                ojectTypeConf = new FactTemplateTypeConf( ((Fact) object).getFactTemplate(),
                                                          this.ruleBase );
                memory.put( key,
                            ojectTypeConf,
                            false );
            }
            object = key;
        } else {
            Class cls = null;
            if ( object instanceof ShadowProxy ) {
                cls = ((ShadowProxy) object).getShadowedObject().getClass();
            } else {
                cls = object.getClass();
            }

            ojectTypeConf = (ObjectTypeConf) memory.get( cls );
            if ( ojectTypeConf == null ) {
                ojectTypeConf = new ClassObjectTypeConf( cls,
                                                         this.ruleBase );
                memory.put( cls,
                            ojectTypeConf,
                            false );
            }

            // checks if shadow is enabled
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     *            The working memory session.
     */
    public void retractObject(final InternalFactHandle handle,
                              final PropagationContext context,
                              final InternalWorkingMemory workingMemory) {
        final ObjectHashMap memory = (ObjectHashMap) workingMemory.getNodeMemory( this );

        final Object object = handle.getObject();

        ObjectTypeConf objectTypeConf;
        if ( object instanceof Fact ) {
            String key = ((Fact) object).getFactTemplate().getName();
            objectTypeConf = (ObjectTypeConf) memory.get( key );
        } else if ( object instanceof ShadowProxy ) {
            objectTypeConf = (ObjectTypeConf) memory.get( ((ShadowProxy) object).getShadowedObject().getClass() );
        } else {
            objectTypeConf = (ObjectTypeConf) memory.get( object.getClass() );
        }

        ObjectTypeNode[] cachedNodes = objectTypeConf.getObjectTypeNodes();

        if ( cachedNodes == null ) {
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Related Classes of org.drools.util.ObjectHashMap

  • org.drools.common.AbstractWorkingMemory
  • org.drools.common.PropagationContextImpl
  • org.drools.common.SingleThreadedObjectStore
  • org.drools.common.TruthMaintenanceSystem
  • org.drools.integrationtests.TruthMaintenanceTest
  • org.drools.marshalling.impl.InputMarshaller
  • org.drools.marshalling.impl.OutputMarshaller
  • org.drools.marshalling.InputMarshaller
  • org.drools.marshalling.OutputMarshaller
  • org.drools.reteoo.AlphaNetworkCompiler
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