Examples of org.drools.reteoo.EntryPointNode

org.drools.reteoo.EntryPointNode
A node that is an entry point into the Rete network. As we move the design to support network partitions and concurrent processing of parts of the network, we also need to support multiple, independent entry points and this class represents that. It replaces the function of the Rete Node class in previous designs. @see ObjectTypeNode @author Edson Tirelli

    public Collection<? extends NetworkNode> getSinkList() {
        if ( node instanceof Rete ) {
            Rete rete = (Rete) node;
            return  rete.getEntryPointNodes().values();
        } else if ( node instanceof EntryPointNode ) {
            EntryPointNode epn = (EntryPointNode) node;
            return epn.getObjectTypeNodes().values();
        } else if ( node instanceof ObjectSource ) {
            List<NetworkNode> result = new ArrayList<NetworkNode>();
            for ( ObjectSink sink : ((ObjectSource)node).getSinkPropagator().getSinks() ) {
                result.add( (NetworkNode) sink );
            }

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                gatherNodeInfo( sink,
                                nodeStack,
                                info );
            }
        } else if ( parent instanceof EntryPointNode ) {
            EntryPointNode epn = (EntryPointNode) parent;
            for ( ObjectTypeNode sink : epn.getObjectTypeNodes().values() ) {
                gatherNodeInfo( sink,
                                nodeStack,
                                info );
            }
        } else if ( parent instanceof ObjectSource ) {

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            readRightTuples( handle,
                             context );
        }


        EntryPointNode node = ruleBase.getRete().getEntryPointNode( EntryPoint.DEFAULT );
        Map<ObjectType, ObjectTypeNode> objectTypeNodes = node.getObjectTypeNodes();


        // add handles to object type nodes
        for ( InternalFactHandle handle : handles ) {
            Object object = handle.getObject();
            ClassObjectType objectType = new ClassObjectType( object.getClass() );

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    public static ObjectTypeNode attachObjectTypeNode(BuildContext context,
                                                      ObjectType objectType) {
        synchronized ( context.getRuleBase().getPackagesMap() ) {
            InternalWorkingMemory[] wms = context.getWorkingMemories();


            EntryPointNode epn = context.getRuleBase().getRete().getEntryPointNode( context.getCurrentEntryPoint() );
            if ( epn == null ) {
                epn = new EntryPointNode( context.getNextId(),
                                          context.getRuleBase().getRete(),
                                          context );
                if ( wms.length > 0 ) {
                    epn.attach( wms );
                } else {
                    epn.attach();
                }
            }


            ObjectTypeNode otn = new ObjectTypeNode( context.getNextId(),
                                                     epn,

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                context.setAlphaNodeMemoryAllowed( false );
            }
        }


        context.setObjectSource( (ObjectSource) utils.attachNode( context,
                                                                  new EntryPointNode( context.getNextId(),
                                                                                      context.getRuleBase().getRete(),
                                                                                      context ) ) );


        ObjectTypeNode otn = new ObjectTypeNode( context.getNextId(),
                                                 (EntryPointNode) context.getObjectSource(),

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            if (initialFactNode == null) {
                // ------ START RANT ------
                // The following code is as bad as it looks, but since I was so far 
                // unable to convince Mark that creating OTNs on demand is really bad,
                // I have to continue doing it :)
                EntryPointNode defaultEPNode = context.ruleBase.getRete().getEntryPointNode( EntryPoint.DEFAULT );
                BuildContext buildContext = new BuildContext( context.ruleBase,
                                                              context.ruleBase.getReteooBuilder().getIdGenerator() );
                buildContext.setPartitionId(RuleBasePartitionId.MAIN_PARTITION);
                buildContext.setObjectTypeNodeMemoryEnabled( true );
                initialFactNode = new ObjectTypeNode( sinkId,

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            }
        }
    }


    private void initTransient() {
        EntryPointNode epn = this.ruleBase.getRete().getEntryPointNode( EntryPoint.DEFAULT );


        this.defaultEntryPoint = new NamedEntryPoint( EntryPoint.DEFAULT,
                                                      epn,
                                                      this );

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        AbstractWorkingMemory abstractWorkingMemory = (AbstractWorkingMemory) reteWorkingMemory;


        InternalRuleBase ruleBase = (InternalRuleBase) abstractWorkingMemory.getRuleBase();
        Collection<EntryPointNode> entryPointNodes = ruleBase.getRete().getEntryPointNodes().values();


        EntryPointNode defaultEntryPointNode = null;
        for ( EntryPointNode epNode : entryPointNodes ) {
            if ( epNode.getEntryPoint().getEntryPointId() == "DEFAULT" ) {
                defaultEntryPointNode = epNode;
                break;
            }
        }
        assertNotNull( defaultEntryPointNode );


        Map<ObjectType, ObjectTypeNode> obnodes = defaultEntryPointNode.getObjectTypeNodes();


        ObjectType key = new ClassObjectType( DroolsQuery.class );
        ObjectTypeNode droolsQueryNode = obnodes.get( key );
        ObjectHashSet droolsQueryMemory = (ObjectHashSet) abstractWorkingMemory.getNodeMemory( droolsQueryNode );
        assertEquals( 0,

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        final InternalRuleBase ruleBase = context.getRuleBase();
        ruleBase.lock();
        try {
            InternalWorkingMemory[] wms = context.getWorkingMemories();


            EntryPointNode epn = ruleBase.getRete().getEntryPointNode( context.getCurrentEntryPoint() );
            if ( epn == null ) {
                epn = new EntryPointNode( context.getNextId(),
                                          ruleBase.getRete(),
                                          context );
                if ( wms.length > 0 ) {
                    epn.attach( wms );
                } else {
                    epn.attach();
                }
            }


            ObjectTypeNode otn = new ObjectTypeNode( context.getNextId(),
                                                     epn,

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                context.setAlphaNodeMemoryAllowed( false );
            }
        }


        context.setObjectSource( (ObjectSource) utils.attachNode( context,
                                                                  new EntryPointNode( context.getNextId(),
                                                                                      context.getRuleBase().getRete(),
                                                                                      context ) ) );


        ObjectTypeNode otn = new ObjectTypeNode( context.getNextId(),
                                                 (EntryPointNode) context.getObjectSource(),

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Related Classes of org.drools.reteoo.EntryPointNode

org.drools.common.AbstractWorkingMemory

org.drools.common.InternalWorkingMemory

org.drools.common.InternalWorkingMemoryEntryPoint

org.drools.common.PropagationContextImpl

org.drools.core.util.debug.DefaultNodeInfo

org.drools.core.util.debug.SessionInspector

org.drools.core.util.Iterator

org.drools.factmodel.traits.TraitFieldTMS

org.drools.integrationtests.marshalling.FactHandleMarshallingTest

org.drools.integrationtests.MiscTest

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