FastIterator it = existsNode.getRightIterator(rtm);
PropagationContext context = leftTuple.getPropagationContext();
boolean useLeftMemory = RuleNetworkEvaluator.useLeftMemory(existsNode, leftTuple);
constraints.updateFromTuple(contextEntry,
wm,
leftTuple);
// This method will also remove rightTuples that are from subnetwork where no leftmemory use used
RuleNetworkEvaluator.findLeftTupleBlocker(existsNode, rtm, contextEntry, constraints, leftTuple, it, context, useLeftMemory);