Examples of org.drools.core.spi.Activation

org.drools.core.spi.Activation
When a Tuple fully matches a rule it is added to the Agenda As an Activation. Each Activation is assigned a number, this number is determined by the WorkingMemory all Activations created from a single insert, update, retract are assgigned the same Activation number.

        workingMemory.setGlobal( "map",
                                 map );


        final LeftTupleImpl tuple = new MockTuple( new HashMap() );
        tuple.setLeftTupleSink( new RuleTerminalNode(1, new CompositeObjectSinkAdapterTest.MockBetaNode(), rule,rule.getLhs(), 0,new BuildContext(kBase, null) )  );
        final Activation activation = new MockActivation( rule,
                                                          0,
                                                          rule.getLhs(),
                                                          tuple );


        DefaultKnowledgeHelper knowledgeHelper = new org.drools.core.base.DefaultKnowledgeHelper( ((StatefulKnowledgeSessionImpl)workingMemory) );

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        workingMemory.setGlobal( "map",
                                 map );


        final LeftTupleImpl tuple = new MockTuple( new HashMap() );
        tuple.setLeftTupleSink( new RuleTerminalNode(1, new CompositeObjectSinkAdapterTest.MockBetaNode(), newRule,newRule.getLhs(), 0, new BuildContext(kBase, null) )  );
        final Activation activation = new MockActivation( newRule,
                                                          0,
                                                          newRule.getLhs(),
                                                          tuple );


        final DefaultKnowledgeHelper knowledgeHelper = new org.drools.core.base.DefaultKnowledgeHelper( ((StatefulKnowledgeSessionImpl)workingMemory) );

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        workingMemory.setGlobal( "map",
                                 map );


        final LeftTupleImpl tuple = new MockTuple( new HashMap() );
        tuple.setLeftTupleSink( new RuleTerminalNode(1, new CompositeObjectSinkAdapterTest.MockBetaNode(), rule,rule.getLhs(), 0,new BuildContext(kBase, null) )  );
        final Activation activation = new MockActivation( rule,
                                                          0,
                                                          rule.getLhs(),
                                                          tuple );


        DefaultKnowledgeHelper knowledgeHelper = new org.drools.core.base.DefaultKnowledgeHelper( ((StatefulKnowledgeSessionImpl)workingMemory) );

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        workingMemory.setGlobal( "map",
                                 map );


        final LeftTupleImpl tuple = new MockTuple( new HashMap() );
        tuple.setLeftTupleSink( new RuleTerminalNode(1, new CompositeObjectSinkAdapterTest.MockBetaNode(), newRule,newRule.getLhs(), 0, new BuildContext(kBase, null) )  );
        final Activation activation = new MockActivation( newRule,
                                                          0,
                                                          newRule.getLhs(),
                                                          tuple );


        final DefaultKnowledgeHelper knowledgeHelper = new org.drools.core.base.DefaultKnowledgeHelper( ((StatefulKnowledgeSessionImpl)workingMemory) );

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        PropagationContext pctx = leftTuple.getPropagationContext();
        pctx = RuleTerminalNode.findMostRecentPropagationContext(leftTuple, pctx);


        RuleTerminalNodeLeftTuple rtnLt = ( RuleTerminalNodeLeftTuple ) leftTuple;


        Activation activation = (Activation) leftTuple;
        activation.setMatched( false );


        InternalAgenda agenda = (InternalAgenda) wm.getAgenda();
        agenda.cancelActivation( leftTuple,
                                 pctx,
                                 wm,

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        activationGroup.setTriggeredForRecency( this.workingMemory.getFactHandleFactory().getRecency() );


        for ( final Iterator it = activationGroup.iterator(); it.hasNext(); ) {
            final ActivationGroupNode node = (ActivationGroupNode) it.next();
            final Activation activation = node.getActivation();
            activation.setActivationGroupNode( null );


            if ( activation.isQueued() ) {
                activation.setQueued(false);
                activation.remove();


                if ( activation.getActivationNode() != null ) {
                    final InternalRuleFlowGroup ruleFlowGroup = (InternalRuleFlowGroup) activation.getActivationNode().getParentContainer();
                    ruleFlowGroup.removeActivation( activation );
                }


                eventsupport.getAgendaEventSupport().fireActivationCancelled( activation,
                                                                              this.workingMemory,

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                                            long processInstanceId) {


        RuleFlowGroup systemRuleFlowGroup = this.getRuleFlowGroup( ruleflowGroupName );


        for ( ActivationNode aSystemRuleFlowGroup : systemRuleFlowGroup ) {
            Activation activation = aSystemRuleFlowGroup.getActivation();
            if ( ruleName.equals( activation.getRule().getName() ) ) {
                if ( checkProcessInstance( activation, processInstanceId ) ) {
                    return true;
                }
            }
        }

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        list.add( new LinkedListEntry<Activation>( activation ) );
    }


    public Activation getNext() {
        Activation activation = null;
        while ( this.index <= lastIndex ) {
            LinkedList<LinkedListEntry<Activation>> list = this.array[this.index];
            if ( list != null ) {
                activation = list.removeFirst().getObject();
                if ( list.isEmpty()) {

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                ((EventSupport) this.workingMemory).getAgendaEventSupport().fireBeforeRuleFlowGroupDeactivated( this,
                                                                                                                this.workingMemory );


                FastIterator it = list.fastIterator();
                for ( ActivationNode entry =  list.getFirst(); entry != null; entry = (ActivationNode) it.next( entry ) ) {
                    final Activation activation = entry.getActivation();
                    activation.remove();
                    if ( activation.getActivationGroupNode() != null ) {
                        activation.getActivationGroupNode().getActivationGroup().removeActivation( activation );
                    }
                }


                nodeInstances.clear();
                notifyRuleFlowGroupListeners();

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        // iterate all activations adding them to their AgendaGroups
        synchronized ( this.list ) {
            FastIterator it = list.fastIterator();
            for ( ActivationNode entry =  list.getFirst(); entry != null; entry = (ActivationNode) it.next( entry ) ) {
                final Activation activation = entry.getActivation();
                ((InternalAgendaGroup) activation.getAgendaGroup()).add( activation );
            }
        }


        // making sure we re-evaluate agenda in case we are waiting for activations
        ((InternalAgenda) workingMemory.getAgenda()).notifyHalt();

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Related Classes of org.drools.core.spi.Activation

org.drools.compiler.builder.impl.KnowledgeBuilderTest

org.drools.compiler.compiler.PackageBuilderTest

org.drools.compiler.integrationtests.ExecutionFlowControlTest

org.drools.core.common.ActivationIterator

org.drools.core.common.ActiveActivationIterator

org.drools.core.common.ArrayAgendaGroup

org.drools.core.common.DefaultAgenda

org.drools.core.common.RuleFlowGroupImpl

org.drools.core.marshalling.impl.ProtobufInputMarshaller

org.drools.core.phreak.PhreakRuleTerminalNode

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