protected AbstractIterHashJoin(
JoinKey joinKey,
QueryIterator probeIter,
QueryIterator streamIter,
ExecutionContext execCxt) {
super(probeIter, streamIter, execCxt);
if (joinKey == null) {
QueryIterPeek pProbe = QueryIterPeek.create(probeIter, execCxt);
QueryIterPeek pStream = QueryIterPeek.create(streamIter, execCxt);
Binding bLeft = pProbe.peek();
Binding bRight = pStream.peek();
List<Var> varsLeft = Iter.toList(bLeft.vars());
List<Var> varsRight = Iter.toList(bRight.vars());
joinKey = JoinKey.createVarKey(varsLeft, varsRight);
probeIter = pProbe;
streamIter = pStream;
}
this.joinKey = joinKey;
this.iterStream = streamIter;
this.hashTable = new HashProbeTable(joinKey);
this.iterCurrent = null;
buildHashTable(probeIter);
}
