Examples of org.drools.core.reteoo.Rete

org.drools.core.reteoo.Rete
The Rete-OO network. The Rete class is the root Object. All objects are asserted into the Rete node where it propagates to all matching ObjectTypeNodes. The first time an instance of a Class type is asserted it does a full iteration of all ObjectTyppeNodes looking for matches, any matches are then cached in a HashMap which is used for future assertions. While Rete extends ObjectSource nad implements ObjectSink it nulls the methods attach(), remove() and updateNewNode() as this is the root node they are no applicable @see ObjectTypeNode

     *  
     * @param object the logically inserted object.
     * @param conf the type's configuration.
     */
    private void enableTMS(Object object, ObjectTypeConf conf) {
        final Rete source = this.ruleBase.getRete();
        final ClassObjectType cot = new ClassObjectType( object.getClass() );
        final Map<ObjectType, ObjectTypeNode> map = source.getObjectTypeNodes( EntryPointId.DEFAULT );
        final ObjectTypeNode node = map.get( cot );
        final ObjectHashSet memory = ((ObjectTypeNodeMemory) this.wm.getNodeMemory( node )).memory;
      
        // All objects of this type that are already there were certainly stated,
        // since this method call happens at the first logical insert, for any given type.

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        for (int i = 0; i < 10; i++) {
            ksession.insert(i);
            ksession.fireAllRules();
        }


        Rete rete = ((KnowledgeBaseImpl)kbase).getRete();
        JoinNode joinNode = null;
        for (ObjectTypeNode otn : rete.getObjectTypeNodes()) {
            if ( String.class == otn.getObjectType().getValueType().getClassType() ) {
                joinNode = (JoinNode)otn.getSinkPropagator().getSinks()[0];
                break;
            }
        }

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            ksession.fireAllRules();
            ksession.delete(fh);
            ksession.fireAllRules();
        }


        Rete rete = ((KnowledgeBaseImpl)kbase).getRete();
        LeftInputAdapterNode liaNode = null;
        for (ObjectTypeNode otn : rete.getObjectTypeNodes()) {
            if ( String.class == otn.getObjectType().getValueType().getClassType() ) {
                AlphaNode alphaNode = (AlphaNode)otn.getSinkPropagator().getSinks()[0];
                liaNode = (LeftInputAdapterNode)alphaNode.getSinkPropagator().getSinks()[0];
                break;
            }

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     *  
     * @param object the logically inserted object.
     * @param conf the type's configuration.
     */
    private void enableTMS(Object object, ObjectTypeConf conf) {
        final Rete source = this.ruleBase.getRete();
        final ClassObjectType cot = new ClassObjectType( object.getClass() );
        final Map<ObjectType, ObjectTypeNode> map = source.getObjectTypeNodes( EntryPointId.DEFAULT );
        final ObjectTypeNode node = map.get( cot );
        final ObjectHashSet memory = ((ObjectTypeNodeMemory) this.wm.getNodeMemory( node )).memory;
      
        // All objects of this type that are already there were certainly stated,
        // since this method call happens at the first logical insert, for any given type.

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        }


        // force gc
        ((DefaultAgenda)ksession.getAgenda()).getGarbageCollector().forceGcUnlinkedRules();


        Rete rete = ((KnowledgeBaseImpl)kbase).getRete();
        JoinNode joinNode = null;
        for (ObjectTypeNode otn : rete.getObjectTypeNodes()) {
            if ( Integer.class == otn.getObjectType().getValueType().getClassType() ) {
                joinNode = (JoinNode)otn.getSinkPropagator().getSinks()[0];
                break;
            }
        }

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        ksession.fireAllRules();


        // force gc
        ((DefaultAgenda)ksession.getAgenda()).getGarbageCollector().forceGcUnlinkedRules();


        Rete rete = ((KnowledgeBaseImpl)kbase).getRete();
        JoinNode joinNode = null;
        for (ObjectTypeNode otn : rete.getObjectTypeNodes()) {
            if ( Integer.class == otn.getObjectType().getValueType().getClassType() ) {
                joinNode = (JoinNode)otn.getSinkPropagator().getSinks()[0];
                break;
            }
        }

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        }


        // force gc
        ((DefaultAgenda)ksession.getAgenda()).getGarbageCollector().forceGcUnlinkedRules();


        Rete rete = ((KnowledgeBaseImpl)kbase).getRete();
        JoinNode joinNode = null;
        for (ObjectTypeNode otn : rete.getObjectTypeNodes()) {
            if ( Integer.class == otn.getObjectType().getValueType().getClassType() ) {
                joinNode = (JoinNode)otn.getSinkPropagator().getSinks()[0];
                break;
            }
        }

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     *  
     * @param object the logically inserted object.
     * @param conf the type's configuration.
     */
    private void enableTMS(Object object, ObjectTypeConf conf) {
        final Rete source = this.kBase.getRete();
        final ClassObjectType cot = new ClassObjectType( object.getClass() );
        final Map<ObjectType, ObjectTypeNode> map = source.getObjectTypeNodes( EntryPointId.DEFAULT );
        final ObjectTypeNode node = map.get( cot );
        final ObjectHashSet memory = ((ObjectTypeNodeMemory) this.wm.getNodeMemory( node )).memory;
      
        // All objects of this type that are already there were certainly stated,
        // since this method call happens at the first logical insert, for any given type.

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    @Test
    @Ignore
    public <M extends ModedAssertion<M>> void testSingleLogicalRelationship() throws Exception {
        IdGenerator idGenerator = kBase.getReteooBuilder().getIdGenerator();


        final Rete rete = kBase.getRete();
        // create a RuleBase with a single ObjectTypeNode we attach a
        // MockObjectSink so we can detect assertions and retractions
        final ObjectTypeNode objectTypeNode = new ObjectTypeNode(idGenerator.getNextId(),
                                                                 this.entryPoint,
                                                                 new ClassObjectType(String.class),

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        // MockObjectSink so w can detect assertions and retractions
        final RuleImpl rule1 = new RuleImpl( "test-rule1" );


        IdGenerator idGenerator = kBase.getReteooBuilder().getIdGenerator();


        final Rete rete = kBase.getRete();
        final ObjectTypeNode objectTypeNode = new ObjectTypeNode( idGenerator.getNextId(),
                                                                  this.entryPoint,
                                                                  new ClassObjectType( String.class ),
                                                                  buildContext );
        objectTypeNode.attach( buildContext );

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