@Override
protected PipelineOp newJoin(
final BOp[] args,
final int joinId,
final IVariable<IV>[] joinVars,
final Predicate<IV> predOp,
final UUID queryId,
final NV... annotations) {
final Map<String, Object> tmp =
NV.asMap(
new NV(BOp.Annotations.EVALUATION_CONTEXT, BOpEvaluationContext.CONTROLLER), //
new NV(Predicate.Annotations.BOP_ID, joinId), //
new NV(PipelineJoin.Annotations.PREDICATE, predOp), //
new NV(
HTreeHashJoinAnnotations.RELATION_NAME,
predOp.getRequiredProperty(Predicate.Annotations.RELATION_NAME)), //
new NV(HashJoinAnnotations.JOIN_VARS, joinVars), //
new NV(PipelineOp.Annotations.LAST_PASS, true), //
new NV(PipelineOp.Annotations.MAX_PARALLEL, 1), //
new NV(PipelineOp.Annotations.MAX_MEMORY, Bytes.megabyte), //
new NV(
NamedSetAnnotations.NAMED_SET_REF,
NamedSolutionSetRefUtility.newInstance(queryId, getName(), joinVars)) //
);
if (predOp.isOptional()) {
// Note: memory can not be constrained since predicate is optional.
tmp.put(PipelineOp.Annotations.MAX_MEMORY, Long.MAX_VALUE);
}
if (annotations != null) {
for (NV nv : annotations) {
tmp.put(nv.getName(), nv.getValue());
}
}
final PipelineOp joinOp = new HTreeHashJoinOp<IV>(args, tmp);
return joinOp;
}
