Method value

basex-core/src/main/java/org/basex/query/iter/Iter.java:63–78

Returns a value with all iterated items. This method should always be called before single items have been requested. Otherwise, it might not return all items. @param qc query context @param expr original expression (can be null; if assigned, type of result sequence will be refined) @retur

(final QueryContext qc, final Expr expr)

   * @throws QueryException query exception
   */
  public Value value(final QueryContext qc, final Expr expr) throws QueryException {
    // empty sequence?
    final Item item1 = next();
    if(item1 == null) return Empty.VALUE;

    // single item?
    final Item item2 = next();
    if(item2 == null) return item1;

    // build sequence
    final ValueBuilder vb = new ValueBuilder(qc, size()).add(item1).add(item2);
    for(Item item; (item = next()) != null;) {
      vb.add(item);
    }
    return vb.value(expr);
  }
}