Method find

basex-core/src/main/java/org/basex/query/func/map/MapFind.java:44–58

Finds map entries in the specified iterator. @param iter iterator @param key item to be found @param builder array builder @param qc query context @throws QueryException query exception

(final Iter iter, final Item key, final ArrayBuilder builder,
      final QueryContext qc)

   * @throws QueryException query exception
   */
  private static void find(final Iter iter, final Item key, final ArrayBuilder builder,
      final QueryContext qc) throws QueryException {

    for(Item item; (item = qc.next(iter)) != null;) {
      if(item instanceof final XQMap map) {
        final Value value = map.get(key);
        if(!value.isEmpty()) builder.add(value);
        map.forEach((k, val) -> find(val.iter(), key, builder, qc));
      } else if(item instanceof final XQArray array) {
        for(final Value value : array.members()) {
          find(value.iter(), key, builder, qc);
        }
      }
    }
  }
}