Package org.drools.core

Examples of org.drools.core.FactHandle

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        A a2 = new A( "1",
                      "2" );
        A a3 = new A( "1",
                      "2" );

        FactHandle fa1 = (FactHandle) ksession.insert( a1 );
        FactHandle fa2 = (FactHandle) ksession.insert( a2 );
        FactHandle fa3 = (FactHandle) ksession.insert( a3 );
        ksession.fireAllRules();

        // a1 is blocked by a2
        assertEquals( 0,
                      list.size() );
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        A a2 = new A( "1",
                      "2" );
        A a3 = new A( "1",
                      "2" );

        FactHandle fa1 = (FactHandle) ksession.insert( a1 );
        FactHandle fa2 = (FactHandle) ksession.insert( a2 );
        FactHandle fa3 = (FactHandle) ksession.insert( a3 );

        // a2, a3 are blocked by a1
        // modify a1, so that a1,a3 are now blocked by a2
        a1.setField2( "1" ); // Do
        ksession.update( fa1,
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                                                          new ClassObjectType(List.class),
                                                          buildContext);
        listOtn.attach(buildContext);

        // Will automatically create an ArrayList ObjectTypeNode
        FactHandle handle = workingMemory.insert(new ArrayList());

        // Check we have three ObjectTypeNodes, List, ArrayList and InitialFactImpl
        assertEquals(3,
                     rete.getObjectTypeNodes().size());
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                       false );
    }

    public FactHandle insert(final Object object,
                       final boolean dynamic) throws FactException {
        FactHandle handle = this.workingMemory.insert( object,
                                                           null,
                                                           dynamic,
                                                           false,
                                                           this.activation.getRule(),
                                                           this.activation );
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        if ( dep != null ) {
            // Add the previous matching logical dependency back into the list          
            this.activation.addLogicalDependency( dep );
        } else {
            // no previous matching logical dependency, so create a new one
            FactHandle handle = this.workingMemory.insert( object,
                                                           value,
                                                           dynamic,
                                                           true,
                                                           this.activation.getRule(),
                                                           this.activation );
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            leftTuple.getLeftTupleSink().retractLeftTuple( leftTuple, (PropagationContext) match.getPropagationContext(), workingMemory );
        }
    }
   
    public FactHandle getFactHandle(Object object) {
        FactHandle handle = null;
        if ( identityMap != null ) {
            handle = identityMap.get( object );
        }
       
        if ( handle != null ) {
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    public void setIdentityMap(IdentityHashMap<Object, FactHandle> identityMap) {
        this.identityMap = identityMap;
    }

    private FactHandle getFactHandleFromWM(final Object object) {
        FactHandle handle = null;
        // entry point null means it is a generated fact, not a regular inserted fact
        // NOTE: it would probably be a good idea to create a specific attribute for that
            for ( SessionEntryPoint ep : workingMemory.getEntryPoints().values() ) {
                handle = (FactHandle) ep.getFactHandle( object );
                if ( identityMap != null ) {
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            return null;
        }
    }

    protected <T> T doInsertTrait( T thing, boolean logical ) {
        FactHandle fh = insert( thing );
       
        if ( logical ) {
            AgendaItem agendaItem = ( AgendaItem ) activation;
           
            RetractTrait newUnMatch = new RetractTrait(fh);
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        final StringBuilder result = new StringBuilder();
        final Tuple tuple = activation.getTuple();
        final Map<?, ?> declarations = activation.getSubRule().getOuterDeclarations();
        for ( Iterator<?> it = declarations.values().iterator(); it.hasNext(); ) {
            final Declaration declaration = (Declaration) it.next();
            final FactHandle handle = tuple.get( declaration );
            if ( handle instanceof InternalFactHandle ) {
                final InternalFactHandle handleImpl = (InternalFactHandle) handle;
                if ( handleImpl.getId() == -1 ) {
                    // This handle is now invalid, probably due to an fact retraction
                    continue;
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    public Map getActivationParameters(Activation activation) {
        Map result = new HashMap();
        Declaration[] declarations = ((RuleTerminalNode)((LeftTuple) activation.getTuple()).getLeftTupleSink()).getDeclarations();
       
        for ( int i = 0; i < declarations.length; i++ ) {
            FactHandle handle = activation.getTuple().get( declarations[i] );
            if ( handle instanceof InternalFactHandle ) {
                result.put( declarations[i].getIdentifier(),
                            declarations[i].getValue( this,
                                                      ((InternalFactHandle) handle).getObject() ) );
            }
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Related Classes of org.drools.core.FactHandle

  • org.drools.compiler.integrationtests.ExecutionFlowControlTest
  • org.drools.compiler.integrationtests.FirstOrderLogicTest
  • org.drools.compiler.integrationtests.LinkingTest
  • org.drools.compiler.integrationtests.MiscTest
  • org.drools.compiler.integrationtests.TimerAndCalendarTest
  • org.drools.core.audit.WorkingMemoryLogger
  • org.drools.core.base.DefaultKnowledgeHelper
  • org.drools.core.base.DelegateJavaFactHandler
  • org.drools.core.common.AbstractWorkingMemory
  • org.drools.core.common.NamedEntryPoint
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