Package org.drools.spi

Examples of org.drools.spi.PropagationContext

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            BetaConstraints constraints = existsNode.getRawConstraints();
            FastIterator it = existsNode.getRightIterator( rtm );

            for ( LeftTuple leftTuple = srcLeftTuples.getInsertFirst(); leftTuple != null; ) {
                LeftTuple next = leftTuple.getStagedNext();
                PropagationContext context = leftTuple.getPropagationContext();
                boolean useLeftMemory = true;
                if ( !tupleMemoryEnabled ) {
                    // This is a hack, to not add closed DroolsQuery objects
                    Object object = ((InternalFactHandle) context.getFactHandle()).getObject();
                    if ( !(object instanceof DroolsQuery) || !((DroolsQuery) object).isOpen() ) {
                        useLeftMemory = false;
                    }
                }
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            FastIterator it = existsNode.getLeftIterator( ltm );

            for ( RightTuple rightTuple = srcRightTuples.getInsertFirst(); rightTuple != null; ) {
                RightTuple next = rightTuple.getStagedNext();
                rtm.add( rightTuple );
                PropagationContext context = rightTuple.getPropagationContext();

                constraints.updateFromFactHandle( contextEntry,
                                                  wm,
                                                  rightTuple.getFactHandle() );
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            BetaConstraints constraints = existsNode.getRawConstraints();
            FastIterator rightIt = existsNode.getRightIterator( rtm );

            for ( LeftTuple leftTuple = srcLeftTuples.getUpdateFirst(); leftTuple != null; ) {
                LeftTuple next = leftTuple.getStagedNext();
                PropagationContext context = leftTuple.getPropagationContext();
               
                RightTuple firstRightTuple = existsNode.getFirstRightTuple(leftTuple, rtm, context, rightIt);
               
                // If in memory, remove it, because we'll need to add it anyway if it's not blocked, to ensure iteration order
                RightTuple blocker = leftTuple.getBlocker();
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            FastIterator leftIt = existsNode.getLeftIterator( ltm );
            FastIterator rightIt = existsNode.getRightIterator( rtm );

            for ( RightTuple rightTuple = srcRightTuples.getUpdateFirst(); rightTuple != null; ) {
                RightTuple next = rightTuple.getStagedNext();
                PropagationContext context = rightTuple.getPropagationContext();
               
                LeftTuple firstLeftTuple = existsNode.getFirstLeftTuple( rightTuple, ltm, context, leftIt );
               
                LeftTuple firstBlocked = rightTuple.getBlocked();
                // we now have  reference to the first Blocked, so null it in the rightTuple itself, so we can rebuild
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        if (context == null) {
            return;
        }

        for ( InternalWorkingMemory workingMemory : context.getWorkingMemories() ) {
            final PropagationContext propagationContext = new PropagationContextImpl( workingMemory.getNextPropagationIdCounter(),
                                                                                      PropagationContext.RULE_ADDITION,
                                                                                      null,
                                                                                      null,
                                                                                      null );
            getLeftTupleSource().updateSink(this, propagationContext, workingMemory);
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                ((EventSupport) workingMemory).getAgendaEventSupport().fireActivationCancelled( activation,
                                                                                                workingMemory,
                                                                                                MatchCancelledCause.CLEAR );
            }

            final PropagationContext propagationContext = new PropagationContextImpl( workingMemory.getNextPropagationIdCounter(),
                                                                                      PropagationContext.RULE_REMOVAL,
                                                                                      null,
                                                                                      null,
                                                                                      null );
            TruthMaintenanceSystemHelper.removeLogicalDependencies( activation,
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        if (context == null) {
            return;
        }

        for (InternalWorkingMemory workingMemory : context.getWorkingMemories()) {
            final PropagationContext propagationContext = new PropagationContextImpl(
                    workingMemory.getNextPropagationIdCounter(),
                    PropagationContext.RULE_ADDITION,
                    null,
                    null,
                    null);
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                        activation,
                        typeConf );
                return handle;
            }
           
            final PropagationContext propagationContext = new PropagationContextImpl( this.wm.getNextPropagationIdCounter(),
                                                                                      PropagationContext.INSERTION,
                                                                                      rule,
                                                                                      (activation == null) ? null : activation.getTuple(),
                                                                                      handle,
                                                                                      this.wm.agenda.getActiveActivations(),
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        if ( activation != null ) {
            // release resources so that they can be GC'ed
            activation.getPropagationContext().releaseResources();
        }
        final PropagationContext propagationContext = new PropagationContextImpl( this.wm.getNextPropagationIdCounter(),
                                                                                  PropagationContext.INSERTION,
                                                                                  rule,
                                                                                  (activation == null) ? null : activation.getTuple(),
                                                                                  handle,
                                                                                  this.wm.agenda.getActiveActivations(),
                                                                                  this.wm.agenda.getDormantActivations(),
                                                                                  entryPoint );

        this.entryPointNode.assertObject( handle,
                                          propagationContext,
                                          typeConf,
                                          this.wm );
       
        propagationContext.evaluateActionQueue( this.wm );

        this.wm.workingMemoryEventSupport.fireObjectInserted( propagationContext,
                                                              handle,
                                                              object,
                                                              this.wm );
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                                            object );
            }

            this.handleFactory.increaseFactHandleRecency( handle );
            Rule rule = activation == null ? null : activation.getRule();
            final PropagationContext propagationContext = new PropagationContextImpl( this.wm.getNextPropagationIdCounter(),
                                                                                      PropagationContext.MODIFICATION,
                                                                                      rule,
                                                                                      (activation == null) ? null : activation.getTuple(),
                                                                                      handle,
                                                                                      this.wm.agenda.getActiveActivations(),
                                                                                      this.wm.agenda.getDormantActivations(),
                                                                                      entryPoint,
                                                                                      mask );
           
            if ( typeConf.isTMSEnabled() ) {
                EqualityKey newKey = tms.get( object );
                EqualityKey oldKey = handle.getEqualityKey();
                if ( newKey == null ) {                   
                    if ( oldKey.getStatus() == EqualityKey.JUSTIFIED ) {
                        // new target key is JUSTFIED, updates are always STATED
                        TruthMaintenanceSystemHelper.removeLogicalDependencies( oldKey.getFactHandle(), propagationContext );
                    }
                   
                    oldKey.removeFactHandle( handle );
                    // If the equality key is now empty, then remove it
                    if ( oldKey.isEmpty() ) {
                        getTruthMaintenanceSystem().remove( oldKey );
                    }                   
                   
                    newKey = new EqualityKey( handle,
                                              EqualityKey.STATED ); // updates are always stated
                    handle.setEqualityKey( newKey );
                    getTruthMaintenanceSystem().put( newKey );
                } else if ( newKey != oldKey ) {
                    oldKey.removeFactHandle( handle );
                    // If the equality key is now empty, then remove it
                    if ( oldKey.isEmpty() ) {
                        getTruthMaintenanceSystem().remove( oldKey );
                    } 
                   
                    if ( newKey.getStatus() == EqualityKey.JUSTIFIED ) {
                        // new target key is JUSTITIED, updates are always STATED
                        TruthMaintenanceSystemHelper.removeLogicalDependencies( newKey.getFactHandle(), propagationContext );
                        newKey.setStatus( EqualityKey.STATED );
                    }
                    // the caller needs the new handle
                    handle = newKey.getFactHandle();
                } else if ( !updateLogical &&  oldKey.getStatus() == EqualityKey.JUSTIFIED  ) {
                    // new target key is JUSTIFIED, updates are always STATED
                    TruthMaintenanceSystemHelper.removeLogicalDependencies( oldKey.getFactHandle(), propagationContext );                    
                }
            }

            this.entryPointNode.modifyObject( handle,
                                              propagationContext,
                                              typeConf,
                                              this.wm );
           
            propagationContext.evaluateActionQueue( this.wm );

            this.wm.workingMemoryEventSupport.fireObjectUpdated( propagationContext,
                                                                 handle,
                                                                 originalObject,
                                                                 object,
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Related Classes of org.drools.spi.PropagationContext

  • org.drools.common.AbstractWorkingMemory
  • org.drools.common.BaseNode
  • org.drools.common.NamedEntryPoint
  • org.drools.marshalling.impl.InputMarshaller
  • org.drools.marshalling.impl.OutputMarshaller
  • org.drools.marshalling.impl.ProtobufInputMarshaller
  • org.drools.marshalling.InputMarshaller
  • org.drools.marshalling.OutputMarshaller
  • org.drools.phreak.RuleNetworkEvaluatorActivation$PhreakAccumulateNode
  • org.drools.phreak.RuleNetworkEvaluatorActivation$PhreakExistsNode
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