public void attach(final InternalWorkingMemory[] workingMemories) {
attach();
// we need to call updateSink on Rete, because someone
// might have already added facts matching this ObjectTypeNode
// to working memories
for (int i = 0, length = workingMemories.length; i < length; i++) {
final InternalWorkingMemory workingMemory = workingMemories[i];
final PropagationContextImpl propagationContext =
new PropagationContextImpl(
workingMemory.getNextPropagationIdCounter(),
PropagationContext.RULE_ADDITION,
null,
null,
null);
propagationContext.setEntryPoint(((EntryPointNode) this.source).getEntryPoint());
this.source.updateSink(this, propagationContext, workingMemory);
}
}
/** @inheritDoc If an object is retract, call modify tuple for each tuple match. */
public void retractRightTuple(
final RightTuple rightTuple,
final PropagationContext context,
final InternalWorkingMemory workingMemory) {
final AccumulateMemory memory = (AccumulateMemory) workingMemory.getNodeMemory(this);
final InternalFactHandle origin = (InternalFactHandle) context.getFactHandleOrigin();
if (context.getType() == PropagationContext.EXPIRATION) {
((PropagationContextImpl) context).setFactHandle(null);
}
BetaMemory bm = memory.getBetaMemory();
if (isUnlinkingEnabled()) {
StagedRightTuples stagedRightTuples = bm.getStagedRightTuples();
switch (rightTuple.getStagedType()) {
// handle clash with already staged entries
case LeftTuple.INSERT:
stagedRightTuples.removeInsert(rightTuple);
break;
case LeftTuple.UPDATE:
stagedRightTuples.removeUpdate(rightTuple);
break;
}
stagedRightTuples.addDelete(rightTuple);
if (bm.getDecAndGetCounter() == 0 && !isRightInputIsRiaNode()) {
bm.unlinkNode(workingMemory);
}
return;
}
bm.getRightTupleMemory().remove(rightTuple);
removePreviousMatchesForRightTuple(
rightTuple, context, workingMemory, memory, rightTuple.firstChild);
if (context.getType() == PropagationContext.EXPIRATION) {
((PropagationContextImpl) context).setFactHandle(origin);
}
}