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


    @Test
    public void testIsAssignableFrom() {
        InternalKnowledgeBase kBase = (InternalKnowledgeBase) KnowledgeBaseFactory.newKnowledgeBase();
        IdGenerator idGenerator = kBase.getReteooBuilder().getIdGenerator();
        final Rete source = new Rete(kBase);


        ObjectTypeNode objectTypeNode = new ObjectTypeNode(idGenerator.getNextId(),
                                                           this.entryPoint,
                                                           new ClassObjectType(String.class),
                                                           buildContext);

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                                                                                null,
                                                                                null);


        StatefulKnowledgeSessionImpl ksession = (StatefulKnowledgeSessionImpl)kBase.newStatefulKnowledgeSession();


        final Rete source = new Rete(kBase);


        final ObjectTypeNode objectTypeNode = new ObjectTypeNode(idGenerator.getNextId(),
                                                                 this.entryPoint,
                                                                 new ClassObjectType(String.class),
                                                                 buildContext);

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                                                                                null,
                                                                                null);
        InternalKnowledgeBase kBase = (InternalKnowledgeBase) KnowledgeBaseFactory.newKnowledgeBase();
        final StatefulKnowledgeSessionImpl workingMemory = new StatefulKnowledgeSessionImpl(1, kBase);


        final Rete source = new Rete(kBase);


        final ObjectTypeNode objectTypeNode = new ObjectTypeNode(1,
                                                                 this.entryPoint,
                                                                 new ClassObjectType(String.class),
                                                                 buildContext);

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    public void testAssertObjectWithShadowEnabled() throws Exception {


        InternalKnowledgeBase kBase = (InternalKnowledgeBase) KnowledgeBaseFactory.newKnowledgeBase();
        final StatefulKnowledgeSessionImpl workingMemory = new StatefulKnowledgeSessionImpl(1, kBase);


        final Rete source = kBase.getRete();


        final EntryPointNode entryPoint = new EntryPointNode(0,
                                                             source,
                                                             buildContext);
        entryPoint.attach(buildContext);

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        InternalKnowledgeBase kBase = (InternalKnowledgeBase) KnowledgeBaseFactory.newKnowledgeBase();
        IdGenerator idGenerator = kBase.getReteooBuilder().getIdGenerator();
        StatefulKnowledgeSessionImpl ksession = (StatefulKnowledgeSessionImpl)kBase.newStatefulKnowledgeSession();


        final Rete source = kBase.getRete();


        final EntryPointNode entryPoint = new EntryPointNode(0,
                                                             source,
                                                             buildContext);
        entryPoint.attach(buildContext);

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    @Test
    @Ignore
    public 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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        // create a RuleBase with a single ObjectTypeNode we attach a
        // MockObjectSink so we 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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        // create a RuleBase with a single ObjectTypeNode we attach a
        // MockObjectSink so we 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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    @Test
    public void testMultipleLogicalRelationships() {
        final RuleImpl rule1 = new RuleImpl( "test-rule1" );
        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,

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