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 ); ... 
```

                                                        true );


        final StatefulKnowledgeSession ksession1 = kbase1.newStatefulKnowledgeSession();
        AgendaEventListener ael1 = mock( AgendaEventListener.class );
        ksession1.addEventListener( ael1 );
        WorkingMemoryEntryPoint ep1 = ksession1.getWorkingMemoryEntryPoint( "stocktick stream" );


        FactHandle fh1 = ep1.insert( st1 );
        FactHandle fh1_2 = ep1.insert( st1 );
        FactHandle fh2 = ep1.insert( st2 );
        FactHandle fh3 = ep1.insert( st3 );


        assertSame( fh1,
                    fh1_2 );
        assertSame( fh1,
                    fh2 );

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        StatefulKnowledgeSession ksession = kbase.newStatefulKnowledgeSession( sconf,
                                                                               null );
        SessionPseudoClock clock = ksession.getSessionClock();


        WorkingMemoryEntryPoint ep = ksession.getWorkingMemoryEntryPoint( "X" );


        clock.advanceTime( 1000,
                           TimeUnit.SECONDS );
        ep.insert( new StockTick( 1,
                                  "A",
                                  10,
                                  clock.getCurrentTime() ) );
        clock.advanceTime( 8,
                           TimeUnit.SECONDS );
        ep.insert( new StockTick( 2,
                                  "B",
                                  10,
                                  clock.getCurrentTime() ) );
        clock.advanceTime( 8,
                           TimeUnit.SECONDS );
        ep.insert( new StockTick( 3,
                                  "B",
                                  10,
                                  clock.getCurrentTime() ) );
        clock.advanceTime( 8,
                           TimeUnit.SECONDS );

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 );
            }

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 );

View Full Code Here

        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 );

View Full Code Here

        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 );


        assertTrue( handle5.isEvent() );
        assertTrue( handle6.isEvent() );
        assertTrue( handle7.isEvent() );
        assertTrue( handle8.isEvent() );


        session.fireAllRules();


        System.out.println( results );
        assertEquals( 2,
                      results.size() );
        assertEquals( 30,
                      ((Number) results.get( 0 )).intValue() );
        assertEquals( 110,
                      ((Number) results.get( 1 )).intValue() );


        // the 3 non-matched facts continue to exist in the entry point
        assertEquals( 3,
                      entry.getObjects().size() );
        // but no fact was inserted into the main session
        assertEquals( 0,
                      session.getObjects().size() );


    }

View Full Code Here

    public void testGetEntryPointList() throws Exception {
        // read in the source
        KnowledgeBase kbase = loadKnowledgeBase( "test_EntryPointReference.drl" );
        StatefulKnowledgeSession session = kbase.newStatefulKnowledgeSession();


        WorkingMemoryEntryPoint def = session.getWorkingMemoryEntryPoint( EntryPoint.DEFAULT.getEntryPointId() );
        WorkingMemoryEntryPoint s1 = session.getWorkingMemoryEntryPoint( "stream1" );
        WorkingMemoryEntryPoint s2 = session.getWorkingMemoryEntryPoint( "stream2" );
        WorkingMemoryEntryPoint s3 = session.getWorkingMemoryEntryPoint( "stream3" );
        Collection< ? extends WorkingMemoryEntryPoint> eps = session.getWorkingMemoryEntryPoints();


        assertEquals( 4,
                      eps.size() );
        assertTrue( eps.contains( def ) );

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        readInitialFactHandle( context, 
                               _session.getRuleData() );
        
        for ( ProtobufMessages.EntryPoint _ep : _session.getRuleData().getEntryPointList() ) {
            WorkingMemoryEntryPoint wmep = context.wm.getEntryPoints().get( _ep.getEntryPointId() );
            readFactHandles( context,
                             _ep,
                             ((NamedEntryPoint) wmep).getObjectStore() );
        }

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                                       org.drools.marshalling.impl.ProtobufMessages.EntryPoint _ep,
                                       ObjectStore objectStore) throws IOException,
                                                               ClassNotFoundException {
        InternalWorkingMemory wm = context.wm;


        WorkingMemoryEntryPoint entryPoint = context.wm.getEntryPoints().get( _ep.getEntryPointId() );
        // load the handles
        for ( ProtobufMessages.FactHandle _handle : _ep.getHandleList() ) {
            InternalFactHandle handle = readFactHandle( context,
                                                        entryPoint,
                                                        _handle );

View Full Code Here

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