public static Op substitute(Op op, Binding binding) { return Substitute.substitute(op, binding); }
@Override public QueryIterator exec( Binding binding, PropFuncArg argSubject, Node predicate, PropFuncArg argObject, ExecutionContext execCxt) { if (textIndex == null) { if (!warningIssued) { Log.warn(getClass(), "No text index - no text search performed"); warningIssued = true; } // Not a text dataset - no-op return IterLib.result(binding, execCxt); } DatasetGraph dsg = execCxt.getDataset(); argSubject = Substitute.substitute(argSubject, binding); argObject = Substitute.substitute(argObject, binding); Node s = null; Node score = null; Node literal = null; if (argSubject.isList()) { // Length checked in build() s = argSubject.getArg(0); score = argSubject.getArg(1); if (!score.isVariable()) throw new QueryExecException("Hit score is not a variable: " + argSubject); if (argSubject.getArgListSize() > 2) { literal = argSubject.getArg(2); if (!literal.isVariable()) throw new QueryExecException("Hit literal is not a variable: " + argSubject); } } else { s = argSubject.getArg(); } if (s.isLiteral()) // Does not match return IterLib.noResults(execCxt); StrMatch match = objectToStruct(argObject, true); if (match == null) { // can't match return IterLib.noResults(execCxt); } // ---- QueryIterator qIter = (Var.isVar(s)) ? variableSubject(binding, s, score, literal, match, execCxt) : concreteSubject(binding, s, score, literal, match, execCxt); if (match.getLimit() >= 0) qIter = new QueryIterSlice(qIter, 0, match.getLimit(), execCxt); return qIter; }