/**
* Binds the specified value to a variable.
*
* @param name variable name
* @param args argument array
* @param value value to be bound
* @throws QueryException query exception
*/
private void bind(final QNm name, final Expr[] args, final Value value) throws QueryException {
// skip nulled values
if (value == null) return;
for (int i = 0; i < function.args.length; i++) {
final Var var = function.args[i];
if (!var.name.eq(name)) continue;
// casts and binds the value
args[i] = var.checkType(value, context, null);
break;
}
}
@Override
public String toString() {
final TokenBuilder tb = new TokenBuilder().add(var.toString()).add(' ').add(ASSIGN);
tb.add(' ').add(expr.toString());
if (coll != null) tb.add(' ').add(COLLATION).add(" \"").add(coll.uri()).add('"');
return tb.toString();
}
@Override
public void plan(final FElem plan) {
final FElem e = planElem();
var.plan(e);
expr.plan(e);
plan.add(e);
}
@Override
public Count optimize(final QueryContext qc, final VarScope scp) throws QueryException {
var.refineType(SeqType.ITR, qc, info);
return this;
}