Examples of org.drools.runtime.rule.WorkingMemoryEntryPoint

org.drools.runtime.rule.WorkingMemoryEntryPoint
An entry-point is an abstract channel through where facts are inserted into the engine.

Drools 5 supports multiple entry-points into a single StatefulKnowledgeBase: the default, anonymous entry-point, as well as as many user declared entry points the application requires.

To get a reference to an entry point, just request the session:
```
 StatefulKnowledgeSession session = kbase.newStatelessKnowledgeSession(); ... WorkingMemoryEntryPoint entrypoint = session.getWorkingMemoryEntryPoint("my entry point"); 
```
Once a reference to an entry point is acquired, the application can insert, update and retract facts to/from that entry-point as usual:
```
 ... FactHandle factHandle = entrypoint.insert( fact ); ... entrypoint.update( factHandle, newFact ); ... entrypoint.retract( factHandle ); ... 
```

        StatefulKnowledgeSession ksession = knowledgeBase.newStatefulKnowledgeSession( ksconf, null );


        List list = new ArrayList();
        ksession.setGlobal( "list", list );


        WorkingMemoryEntryPoint aep = ksession.getWorkingMemoryEntryPoint( "a-ep" );
        aep.insert( new A() );
        ksession = marsallStatefulKnowledgeSession( ksession );


        aep = ksession.getWorkingMemoryEntryPoint( "a-ep" );
        aep.insert( new A() );
        ksession = marsallStatefulKnowledgeSession( ksession );


        list.clear();
        ksession.fireAllRules();
        ksession = marsallStatefulKnowledgeSession( ksession );
        assertEquals( 2, ((List) list.get( 0 )).size() );


        aep = ksession.getWorkingMemoryEntryPoint( "a-ep" );
        aep.insert( new A() );
        ksession = marsallStatefulKnowledgeSession( ksession );


        aep = ksession.getWorkingMemoryEntryPoint( "a-ep" );
        aep.insert( new A() );
        ksession = marsallStatefulKnowledgeSession( ksession );


        list.clear();
        ksession.fireAllRules();
        ksession = marsallStatefulKnowledgeSession( ksession );

View Full Code Here

            readRightTuples( initialFactHandle,
                             context );
        }
        while ( context.readShort() == PersisterEnums.ENTRY_POINT) {
            String entryPointId = context.stream.readUTF();
            WorkingMemoryEntryPoint wmep = context.wm.getEntryPoints().get( entryPointId );
            readFactHandles( context,
                             ( (NamedEntryPoint) wmep ).getObjectStore() );
        }
        InternalFactHandle handle = context.wm.getInitialFactHandle();
        while (context.stream.readShort() == PersisterEnums.LEFT_TUPLE) {

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        // If either way retrieves a strategy, use it
        if (strategy != null) {
            object = strategy.read( context.stream );
        }


        WorkingMemoryEntryPoint entryPoint = null;
        if (context.readBoolean()) {
            String entryPointId = context.readUTF();
            if (entryPointId != null && !entryPointId.equals( "" )) {
                entryPoint = context.wm.getEntryPoints().get( entryPointId );
            }

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    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);
        WorkingMemoryEntryPoint wmEntryPoint = new NamedEntryPoint(EntryPoint.DEFAULT, entryPointNode, wm);
        EventFactHandle factHandle = new EventFactHandle(1, (Object) new Person(),0, (new Date()).getTime(), 0, wmEntryPoint);
        
        return factHandle;
    }

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        this.outIdentifier = outIdentifier;
    }


    public FactHandle execute(Context context) {


        WorkingMemoryEntryPoint ep = ((KnowledgeCommandContext) context).getWorkingMemoryEntryPoint();
        FactHandle factHandle = ep.insert(object);


        DefaultFactHandle disconectedHandle = new DefaultFactHandle(factHandle.toExternalForm());


        if (outIdentifier != null) {
            if (this.returnObject) {

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        int strategyIndex = context.stream.readInt();
        ObjectMarshallingStrategy strategy = context.resolverStrategyFactory.getStrategy( strategyIndex );
        Object object = strategy.read( context.stream );
        
        WorkingMemoryEntryPoint entryPoint = null;
        if(context.readBoolean()){
            String entryPointId = context.readUTF();
            if(entryPointId != null && !entryPointId.equals("")){
                entryPoint = context.wm.getEntryPoints().get(entryPointId);
            }

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        KnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase();


        kbase.addKnowledgePackages( kbuilder.getKnowledgePackages() );


        final StatefulKnowledgeSession ksession = kbase.newStatefulKnowledgeSession();
        final WorkingMemoryEntryPoint ep = ksession.getWorkingMemoryEntryPoint( "testep" );


        List list = new ArrayList();
        ksession.setGlobal( "list",
                            list );


        ksession.insert( new Cheese( "cheddar" ) );
        ksession.fireAllRules();


        Runnable fireUntilHalt = new Runnable() {
            public void run() {
                ksession.fireUntilHalt();
            }
        };


        Thread t1 = new Thread( fireUntilHalt );
        t1.start();


        Thread.currentThread().sleep( 500 );
        ep.insert( new Person( "darth" ) );
        Thread.currentThread().sleep( 500 );
        ksession.halt();
        t1.join( 5000 );
        boolean alive = t1.isAlive();
        if ( alive ) {

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        KnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase();


        kbase.addKnowledgePackages( kbuilder.getKnowledgePackages() );


        final StatefulKnowledgeSession ksession = kbase.newStatefulKnowledgeSession();
        final WorkingMemoryEntryPoint ep = ksession.getWorkingMemoryEntryPoint( "testep" );


        List list = new ArrayList();
        ksession.setGlobal( "list",
                            list );


        list.add( new Person( "darth" ) );
        ep.insert( new Cheese( "cheddar" ) );


        ksession.fireAllRules();
        assertEquals( 3,
                      list.size() );
    }

View Full Code Here

        StockTickInterface tick8 = new StockTick(8,
                "DROO",
                50,
                System.currentTimeMillis());


        WorkingMemoryEntryPoint entry = session.getWorkingMemoryEntryPoint("StockStream");


        InternalFactHandle handle5 = (InternalFactHandle) entry.insert(tick5);
        InternalFactHandle handle6 = (InternalFactHandle) entry.insert(tick6);
        InternalFactHandle handle7 = (InternalFactHandle) entry.insert(tick7);
        InternalFactHandle handle8 = (InternalFactHandle) entry.insert(tick8);


        assertNotNull(handle5);
        assertNotNull(handle6);
        assertNotNull(handle7);
        assertNotNull(handle8);

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        StockTickInterface tick8 = new StockTick(8,
                "DROO",
                50,
                System.currentTimeMillis());


        WorkingMemoryEntryPoint entry = session.getWorkingMemoryEntryPoint("stream1");


        InternalFactHandle handle5 = (InternalFactHandle) entry.insert(tick5);
        InternalFactHandle handle6 = (InternalFactHandle) entry.insert(tick6);
        InternalFactHandle handle7 = (InternalFactHandle) entry.insert(tick7);
        InternalFactHandle handle8 = (InternalFactHandle) entry.insert(tick8);


        assertNotNull(handle5);
        assertNotNull(handle6);
        assertNotNull(handle7);
        assertNotNull(handle8);

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org.drools.camel.component.DroolsInsertProducer

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org.drools.command.runtime.rule.GetObjectInEntryPointCommand

org.drools.command.runtime.rule.GetObjectsInEntryPointCommand

org.drools.command.runtime.rule.GetWorkingMemoryEntryPointCommand

org.drools.command.runtime.rule.InsertElementsCommand

org.drools.command.runtime.rule.InsertObjectInEntryPointCommand

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