// Delay until query starts executing.
return new QueryIterProcedure(qIter, procedure, execCxt) ;
}
protected QueryIterator execute(OpPropFunc opPropFunc, QueryIterator input) {
Procedure procedure = ProcEval.build(opPropFunc.getProperty(), opPropFunc.getSubjectArgs(),
opPropFunc.getObjectArgs(), execCxt) ;
QueryIterator qIter = exec(opPropFunc.getSubOp(), input) ;
return new QueryIterProcedure(qIter, procedure, execCxt) ;
}