constraints.updateFromFactHandle(contextEntry,
wm,
rightTuple.getFactHandle());
FastIterator leftIt = notNode.getLeftIterator(ltm);
LeftTuple firstLeftTuple = notNode.getFirstLeftTuple(rightTuple, ltm, context, leftIt);
LeftTuple firstBlocked = rightTuple.getTempBlocked();
// first process non-blocked tuples, as we know only those ones are in the left memory.
for (LeftTuple leftTuple = firstLeftTuple; leftTuple != null; ) {
// preserve next now, in case we remove this leftTuple
LeftTuple temp = (LeftTuple) leftIt.next(leftTuple);
if (leftTuple.getStagedType() == LeftTuple.UPDATE) {
// ignore, as it will get processed via left iteration. Children cannot be processed twice
leftTuple = temp;
continue;
}
// we know that only unblocked LeftTuples are still in the memory
if (constraints.isAllowedCachedRight(contextEntry,
leftTuple)) {
leftTuple.setBlocker(rightTuple);
rightTuple.addBlocked(leftTuple);
// this is now blocked so remove from memory
ltm.remove(leftTuple);
LeftTuple childLeftTuple = leftTuple.getFirstChild();
if ( childLeftTuple != null) {
childLeftTuple.setPropagationContext(rightTuple.getPropagationContext());
RuleNetworkEvaluator.deleteRightChild(childLeftTuple, trgLeftTuples, stagedLeftTuples);
}
}
leftTuple = temp;
}
if (firstBlocked != null) {
RightTuple rootBlocker = rightTuple.getTempNextRightTuple();
if (rootBlocker == null ) {
iterateFromStart = true;
}
FastIterator rightIt = notNode.getRightIterator(rtm);
// iterate all the existing previous blocked LeftTuples
for (LeftTuple leftTuple = firstBlocked; leftTuple != null; ) {
LeftTuple temp = leftTuple.getBlockedNext();
leftTuple.clearBlocker();
if (leftTuple.getStagedType() == LeftTuple.UPDATE) {
// ignore, as it will get processed via left iteration. Children cannot be processed twice
// but need to add it back into list first
leftTuple.setBlocker(rightTuple);
rightTuple.addBlocked(leftTuple);
leftTuple = temp;
continue;
}
constraints.updateFromTuple(contextEntry,
wm,
leftTuple);
if (iterateFromStart) {
rootBlocker = notNode.getFirstRightTuple(leftTuple, rtm, null, rightIt);
}
// we know that older tuples have been checked so continue next
for (RightTuple newBlocker = rootBlocker; newBlocker != null; newBlocker = (RightTuple) rightIt.next(newBlocker)) {
// cannot select a RightTuple queued in the delete list
// There may be UPDATE RightTuples too, but that's ok. They've already been re-added to the correct bucket, safe to be reprocessed.
if (leftTuple.getStagedType() != LeftTuple.DELETE && newBlocker.getStagedType() != LeftTuple.DELETE &&
constraints.isAllowedCachedLeft(contextEntry, newBlocker.getFactHandle())) {