@Override
public Value value(final QueryContext ctx) throws QueryException {
final int o = (int) ctx.resources.output.size();
final Updates updates = ctx.resources.updates();
final ContextModifier tmp = updates.mod;
final TransformModifier pu = new TransformModifier();
updates.mod = pu;
try {
for (final Let fo : copies) {
final Iter ir = ctx.iter(fo.expr);
Item i = ir.next();
if (!(i instanceof ANode) || ir.next() != null) throw UPCOPYMULT.get(fo.info, fo.var.name);
// copy node to main memory data instance
i = ((ANode) i).dbCopy(ctx.context.options);
// add resulting node to variable
ctx.set(fo.var, i, info);
pu.addData(i.data());
}
final Value v = ctx.value(expr[0]);
if (!v.isEmpty()) throw BASEX_MOD.get(info);
updates.prepare();
updates.apply();
return ctx.value(expr[1]);
} finally {
ctx.resources.output.size(o);
updates.mod = tmp;
}
}
/**
* Builds the thesaurus.
*
* @param value input nodes
* @throws QueryException query exception
*/
private void build(final Value value) throws QueryException {
final Value synonyms = nodes("*:synonym", value);
if (synonyms.isEmpty()) return;
final ThesNode term = node(text("*:term", value));
for (final Item synonym : synonyms) {
final ThesNode sterm = node(text("*:term", synonym));
final byte[] rs = text("*:relationship", synonym);
term.add(sterm, rs);
final byte[] srs = RSHIPS.get(rs);
if (srs != null) sterm.add(term, srs);
build(synonyms);
}
}