Package org.drools.core

Examples of org.drools.core.FactHandle

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    public void propertyChange(final PropertyChangeEvent event) {
        final Object object = event.getSource();

        try {
            FactHandle handle = getFactHandle( object );
            if ( handle == null ) {
                throw new FactException( "Update error: handle not found for object: " + object + ". Is it in the working memory?" );
            }
            update( handle,
                    object );
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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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        AgendaItem match = ( AgendaItem ) act;
        ((RuleTerminalNode)match.getTerminalNode()).cancelMatch( match,  workingMemory);
    }

    public FactHandle lookupFactHandle(Object object) {
        FactHandle handle = null;
        if ( identityMap != null ) {
            handle = identityMap.get( object );
        }

        if ( handle != null ) {
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        handle = getFactHandleFromWM( object );
        return handle;
    }

    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 ( EntryPoint ep : workingMemory.getEntryPoints().values() ) {
                handle = (FactHandle) ep.getFactHandle( object );
                if ( identityMap != null ) {
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            updateCore( inner, core, trait, logical );
        }
    }

    private <T> void updateCore( TraitableBean inner, Object core, Class<T> trait, boolean logical ) {
        FactHandle handle = lookupFactHandle( inner );
        InternalFactHandle h = (InternalFactHandle) handle;
        if ( handle != null ) {
            TraitFieldTMS fieldTMS = inner._getFieldTMS();
            long mask = fieldTMS == null ? Long.MIN_VALUE : fieldTMS.getModificationMask();
            ((NamedEntryPoint) h.getEntryPoint()).update( h,
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                inner._getFieldTMS().init( workingMemory );
            }
        } else {
            TraitFieldTMS ftms = inner._getFieldTMS();
            if ( ftms != null ) {
                FactHandle handle = lookupFactHandle( inner );
                if ( handle == null ) {
                    handle = this.workingMemory.insert( inner,
                                                        null,
                                                        false,
                                                        logical,
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    public <T extends org.kie.api.runtime.rule.FactHandle> Collection<T> getFactHandles() {
        List list = new ArrayList();

        for ( Iterator it = iterateFactHandles(); it.hasNext(); ) {
            FactHandle fh = ( FactHandle) it.next();
            list.add(  fh );
        }

        return list;
    }
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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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