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

        // 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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    public void addGlobal(String identifier, Class clazz) {
        this.globals.put( identifier, clazz );
    }


    protected void setupRete() {
        this.rete = new Rete( this );
        this.reteooBuilder = new ReteooBuilder( this );


        // always add the default entry point
        EntryPointNode epn = kieComponentFactory.getNodeFactoryService().buildEntryPointNode( this.reteooBuilder.getIdGenerator().getNextId(),
                                                                                              RuleBasePartitionId.MAIN_PARTITION,

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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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        return ruleBase;
    }
    
    private InternalFactHandle createEventFactHandle(AbstractWorkingMemory wm, RuleBase ruleBase) { 
        // EntryPointNode
        Rete rete = ((ReteooRuleBase) ruleBase).getRete();


        NodeFactory nFacotry = ((ReteooRuleBase) ruleBase).getConfiguration().getComponentFactory().getNodeFactoryService();


        RuleBasePartitionId partionId = new RuleBasePartitionId("P-MAIN");
        EntryPointNode entryPointNode = nFacotry.buildEntryPointNode(1, partionId, false, (ObjectSource) rete , EntryPointId.DEFAULT);

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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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    public void addGlobal(String identifier, Class clazz) {
        this.globals.put( identifier, clazz );
    }


    protected void setupRete() {
        this.rete = new Rete( this );
        this.reteooBuilder = new ReteooBuilder( this );


        // always add the default entry point
        EntryPointNode epn = kieComponentFactory.getNodeFactoryService().buildEntryPointNode( this.reteooBuilder.getIdGenerator().getNextId(),
                                                                                              RuleBasePartitionId.MAIN_PARTITION,

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     * @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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        return (InternalKnowledgeBase) KnowledgeBaseFactory.newKnowledgeBase( config );
    }
    
    private InternalFactHandle createEventFactHandle(StatefulKnowledgeSessionImpl wm, InternalKnowledgeBase kBase) {
        // EntryPointNode
        Rete rete = kBase.getRete();


        NodeFactory nFacotry = kBase.getConfiguration().getComponentFactory().getNodeFactoryService();


        RuleBasePartitionId partionId = new RuleBasePartitionId("P-MAIN");
        EntryPointNode entryPointNode = nFacotry.buildEntryPointNode(1, partionId, false, (ObjectSource) rete , EntryPointId.DEFAULT);

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        return ruleBase;
    }
    
    private InternalFactHandle createEventFactHandle(AbstractWorkingMemory wm, RuleBase ruleBase) { 
        // EntryPointNode
        Rete rete = ((ReteooRuleBase) ruleBase).getRete();
        RuleBasePartitionId partionId = new RuleBasePartitionId("P-MAIN");
        EntryPointNode entryPointNode = new EntryPointNode(1, partionId, false, (ObjectSource) rete , EntryPoint.DEFAULT);
        SessionEntryPoint wmEntryPoint = new NamedEntryPoint(EntryPoint.DEFAULT, entryPointNode, wm);
        EventFactHandle factHandle = new EventFactHandle(1, (Object) new Person(),0, (new Date()).getTime(), 0, wmEntryPoint);

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