/**
* This is a hook method that may be overriden by subclasses. Please keep it protected.
*
* @param context
* @param workingMemory
* @param leftTuple
* @param sink
*/
protected void doPropagateRetractLeftTuple(
PropagationContext context,
InternalWorkingMemory workingMemory,
LeftTuple leftTuple,
LeftTupleSink sink) {
sink.retractLeftTuple(leftTuple, context, workingMemory);
}
protected void doPropagateRetractLeftTuple(
PropagationContext context,
InternalWorkingMemory workingMemory,
LeftTuple leftTuple,
LeftTupleSink sink) {
// composite propagators need to check each node to decide if the propagation
// must be asynchronous or may eventually be synchronous
if (this.partitionId.equals(sink.getPartitionId())) {
// same partition, so synchronous propagation is fine
sink.retractLeftTuple(leftTuple, context, workingMemory);
} else {
// different partition, so use asynchronous propagation
PartitionTaskManager manager = workingMemory.getPartitionTaskManager(this.partitionId);
manager.enqueue(
new PartitionTaskManager.LeftTupleRetractAction(
leftTuple, context, sink, Action.PRIORITY_HIGH));
}
}
