Examples of org.drools.rule.EntryPoint

org.drools.rule.EntryPoint
This class defines a Rete "Entry Point". An entry point is used as a source of facts that are scoped to a separate alpha network. The alpha network is not shared among separate entry points and this allows them to safelly run in parallel and concurrent modes.


        // add handles to object type nodes
        for (InternalFactHandle factHandle : handles) {
            Object object = factHandle.getObject();


            EntryPoint ep = ( (InternalWorkingMemoryEntryPoint) factHandle.getEntryPoint() ).getEntryPoint();


            ObjectTypeConf typeConf = ( (InternalWorkingMemoryEntryPoint) factHandle.getEntryPoint() ).getObjectTypeConfigurationRegistry().getObjectTypeConf( ep,
                                                                                                                                                               object );
            ObjectTypeNode[] cachedNodes = typeConf.getObjectTypeNodes();
            for (int i = 0, length = cachedNodes.length; i < length; i++) {

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        int activeActivations = stream.readInt();
        int dormantActivations = stream.readInt();
        String entryPointId = stream.readUTF();


        EntryPoint entryPoint = context.entryPoints.get( entryPointId );
        if (entryPoint == null) {
            entryPoint = new EntryPoint( entryPointId );
            context.entryPoints.put( entryPointId,
                                     entryPoint );
        }


        PropagationContext pc = new PropagationContextImpl( propagationNumber,

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    public boolean addActivation(final AgendaItem activation) { 
        if ( declarativeAgenda ) {
            if (  activationObjectTypeConf == null ) {
                EntryPoint ep = workingMemory.getEntryPoint();
                activationObjectTypeConf =  ((InternalWorkingMemoryEntryPoint) workingMemory.getWorkingMemoryEntryPoint( ep.getEntryPointId() )).getObjectTypeConfigurationRegistry().getObjectTypeConf( ep,
                                                                                                                                                                                                         activation );
            }
            
            InternalFactHandle factHandle = workingMemory.getFactHandleFactory().newFactHandle( activation, activationObjectTypeConf, workingMemory, workingMemory );
            workingMemory.getEntryPointNode().assertActivation( factHandle, activation.getPropagationContext(), workingMemory );

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    // ------------------------------------------------------------


    public void updateEntryPointsCache() {
        if (ruleBase.getAddedEntryNodeCache() != null) {
            for (EntryPointNode addedNode : ruleBase.getAddedEntryNodeCache()) {
                EntryPoint id = addedNode.getEntryPoint();
                if (EntryPoint.DEFAULT.equals(id)) continue;
                WorkingMemoryEntryPoint wmEntryPoint = new NamedEntryPoint(id, addedNode, this);
                entryPoints.put(id.getEntryPointId(), wmEntryPoint);
            }
        }


        if (ruleBase.getRemovedEntryNodeCache() != null) {
            for (EntryPointNode removedNode : ruleBase.getRemovedEntryNodeCache()) {

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     *            The working memory session.
     */
    public void assertObject(final InternalFactHandle factHandle,
                             final PropagationContext context,
                             final InternalWorkingMemory workingMemory) {
        EntryPoint entryPoint = context.getEntryPoint();
        EntryPointNode node = this.entryPoints.get( entryPoint );
        ObjectTypeConf typeConf = ((InternalWorkingMemoryEntryPoint) workingMemory.getWorkingMemoryEntryPoint( entryPoint.getEntryPointId() )).getObjectTypeConfigurationRegistry().getObjectTypeConf( entryPoint,
                                                                                                                                                                                                       factHandle.getObject() );
        node.assertObject( factHandle,
                           context,
                           typeConf,
                           workingMemory );

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     *            The working memory session.
     */
    public void retractObject(final InternalFactHandle handle,
                              final PropagationContext context,
                              final InternalWorkingMemory workingMemory) {
        EntryPoint entryPoint = context.getEntryPoint();
        EntryPointNode node = this.entryPoints.get( entryPoint );
        ObjectTypeConf typeConf = ((InternalWorkingMemoryEntryPoint) workingMemory.getWorkingMemoryEntryPoint( entryPoint.getEntryPointId() )).getObjectTypeConfigurationRegistry().getObjectTypeConf( entryPoint,
                                                                                                                                                                                                       handle.getObject() );
        node.retractObject( handle,
                            context,
                            typeConf,
                            workingMemory );

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                                                       ClassNotFoundException {


            InternalFactHandle factHandle = inCtx.handles.get( inCtx.readInt() );


            String entryPointId = inCtx.readUTF();
            EntryPointNode epn = ((ReteooRuleBase) inCtx.wm.getRuleBase()).getRete().getEntryPointNode( new EntryPoint( entryPointId ) );


            String className = inCtx.readUTF();
            Class< ? > cls = ((ReteooRuleBase) inCtx.wm.getRuleBase()).getRootClassLoader().loadClass( className );
            ObjectTypeNode otn = epn.getObjectTypeNodes().get( new ClassObjectType( cls ) );

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        public void deserialize(MarshallerReaderContext inCtx,
                                Timer _timer) throws ClassNotFoundException {
            ExpireTimer _expire = _timer.getExpire();
            InternalFactHandle factHandle = inCtx.handles.get( _expire.getHandleId() );
            EntryPointNode epn = ((ReteooRuleBase)inCtx.wm.getRuleBase()).getRete().getEntryPointNode( new EntryPoint( _expire.getEntryPointId() ) );
            Class<?> cls = ((ReteooRuleBase)inCtx.wm.getRuleBase()).getRootClassLoader().loadClass( _expire.getClassName() );
            ObjectTypeNode otn = epn.getObjectTypeNodes().get( new ClassObjectType( cls ) );
            
            TimerService clock = inCtx.wm.getTimerService();

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            final InternalRuleBase rulebase,
            final ReteooBuilder.IdGenerator idGenerator ) {
        // creates a clean build context for each subrule
        final BuildContext context = new BuildContext( rulebase,
                                                       idGenerator );
        EntryPoint ep = new EntryPoint( id );
        ReteooComponentBuilder builder = utils.getBuilderFor( ep );
        builder.build(context,
                utils,
                ep);
    }

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        public void read(MarshallerReaderContext inCtx) throws IOException, ClassNotFoundException {
            
            InternalFactHandle factHandle = inCtx.handles.get( inCtx.readInt() );
            
            String entryPointId = inCtx.readUTF();            
            EntryPointNode epn = ((ReteooRuleBase)inCtx.wm.getRuleBase()).getRete().getEntryPointNode( new EntryPoint( entryPointId ) );
            
            String className = inCtx.readUTF();
            Class cls = ((ReteooRuleBase)inCtx.wm.getRuleBase()).getRootClassLoader().loadClass( className );
            ObjectTypeNode otn = epn.getObjectTypeNodes().get( new ClassObjectType( cls ) );

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Related Classes of org.drools.rule.EntryPoint

org.drools.common.AbstractWorkingMemory

org.drools.common.DefaultAgenda

org.drools.marshalling.impl.InputMarshaller

org.drools.marshalling.InputMarshaller

org.drools.reteoo.builder.EntryPointBuilder

org.drools.reteoo.builder.ReteooRuleBuilder

org.drools.reteoo.ObjectTypeNode$ExpireJobContextTimerInputMarshaller

org.drools.reteoo.Rete

org.drools.reteoo.ReteooWorkingMemoryTest

org.drools.rule.builder.EntryPointBuilder

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