public void doRightDeletes(
NotNode notNode,
LeftTupleSink sink,
BetaMemory bm,
InternalWorkingMemory wm,
RightTupleSets srcRightTuples,
LeftTupleSets trgLeftTuples) {
LeftTupleMemory ltm = bm.getLeftTupleMemory();
RightTupleMemory rtm = bm.getRightTupleMemory();
ContextEntry[] contextEntry = bm.getContext();
BetaConstraints constraints = notNode.getRawConstraints();
for (RightTuple rightTuple = srcRightTuples.getDeleteFirst(); rightTuple != null; ) {
RightTuple next = rightTuple.getStagedNext();
FastIterator it = notNode.getRightIterator(rtm);
// assign now, so we can remove from memory before doing any possible propagations
boolean useComparisonIndex = rtm.getIndexType().isComparison();
RightTuple rootBlocker = useComparisonIndex ? null : (RightTuple) it.next(rightTuple);
if (rightTuple.getMemory() != null) {
// it may have been staged and never actually added
rtm.remove(rightTuple);
}
if (rightTuple.getBlocked() != null) {
for (LeftTuple leftTuple = rightTuple.getBlocked(); 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
leftTuple = temp;
continue;
}
constraints.updateFromTuple(contextEntry, wm, leftTuple);
if (useComparisonIndex) {
rootBlocker = rtm.getFirst(leftTuple, null, it);
}
// we know that older tuples have been checked so continue next
for (RightTuple newBlocker = rootBlocker;
newBlocker != null;
newBlocker = (RightTuple) it.next(newBlocker)) {
if (constraints.isAllowedCachedLeft(contextEntry, newBlocker.getFactHandle())) {
leftTuple.setBlocker(newBlocker);
newBlocker.addBlocked(leftTuple);
break;
}
}
if (leftTuple.getBlocker() == null) {
// was previous blocked and not in memory, so add
ltm.add(leftTuple);
trgLeftTuples.addInsert(
sink.createLeftTuple(leftTuple, sink, rightTuple.getPropagationContext(), true));
}
leftTuple = temp;
}
}
rightTuple.nullBlocked();
rightTuple.clearStaged();
rightTuple = next;
}
constraints.resetTuple(contextEntry);
}
public static void doUpdatesExistentialReorderRightMemory(
BetaMemory bm, BetaNode betaNode, TupleSets<RightTuple> srcRightTuples) {
TupleMemory rtm = bm.getRightTupleMemory();
boolean resumeFromCurrent =
!(betaNode.isIndexedUnificationJoin() || rtm.getIndexType().isComparison());
// remove all the staged rightTuples from the memory before to readd them all
// this is to avoid split bucket when an updated rightTuple hasn't been moved yet
// and so it is the first entry in the wrong bucket
for (RightTuple rightTuple = srcRightTuples.getUpdateFirst(); rightTuple != null; ) {
RightTuple next = rightTuple.getStagedNext();
if (rightTuple.getMemory() != null) {
rightTuple.setTempRightTupleMemory(rightTuple.getMemory());
if (resumeFromCurrent) {
if (rightTuple.getBlocked() != null) {
// look for a non-staged right tuple first forward ...
RightTuple tempRightTuple = (RightTuple) rightTuple.getNext();
while (tempRightTuple != null && tempRightTuple.getStagedType() != LeftTuple.NONE) {
// next cannot be an updated or deleted rightTuple
tempRightTuple = (RightTuple) tempRightTuple.getNext();
}
// ... and if cannot find one try backward
if (tempRightTuple == null) {
tempRightTuple = (RightTuple) rightTuple.getPrevious();
while (tempRightTuple != null && tempRightTuple.getStagedType() != LeftTuple.NONE) {
// next cannot be an updated or deleted rightTuple
tempRightTuple = (RightTuple) tempRightTuple.getPrevious();
}
}
rightTuple.setTempNextRightTuple(tempRightTuple);
}
}
rightTuple.setTempBlocked(rightTuple.getBlocked());
rightTuple.setBlocked(null);
rtm.remove(rightTuple);
}
rightTuple = next;
}
for (RightTuple rightTuple = srcRightTuples.getUpdateFirst(); rightTuple != null; ) {
RightTuple next = rightTuple.getStagedNext();
if (rightTuple.getTempRightTupleMemory() != null) {
rtm.add(rightTuple);
if (resumeFromCurrent) {
RightTuple tempRightTuple = rightTuple.getTempNextRightTuple();
if (rightTuple.getBlocked() != null
&& tempRightTuple == null
&& rightTuple.getMemory() == rightTuple.getTempRightTupleMemory()) {
// the next RightTuple was null, but current RightTuple was added back into the same
// bucket, so reset as root blocker to re-match can be attempted
rightTuple.setTempNextRightTuple(rightTuple);
}
}
for (LeftTuple childLeftTuple = rightTuple.getFirstChild(); childLeftTuple != null; ) {
LeftTuple childNext = childLeftTuple.getRightParentNext();
childLeftTuple.reAddLeft();
childLeftTuple = childNext;
}
}
rightTuple = next;
}
}