public static void findLeftTupleBlocker( BetaNode betaNode, RightTupleMemory rtm, ContextEntry[] contextEntry, BetaConstraints constraints, LeftTuple leftTuple, FastIterator it, PropagationContext context, boolean useLeftMemory) { // This method will also remove rightTuples that are from subnetwork where no leftmemory use // used for (RightTuple rightTuple = betaNode.getFirstRightTuple(leftTuple, rtm, null, it); rightTuple != null; ) { RightTuple nextRight = (RightTuple) it.next(rightTuple); if (constraints.isAllowedCachedLeft(contextEntry, rightTuple.getFactHandle())) { leftTuple.setBlocker(rightTuple); if (useLeftMemory) { rightTuple.addBlocked(leftTuple); break; } else if (betaNode.isRightInputIsRiaNode()) { // If we aren't using leftMemory and the right input is a RIAN, then we must iterate and // find all subetwork right tuples and remove them // so we don't break rtm.remove(rightTuple); } else { break; } } rightTuple = nextRight; } }