Esempio n. 1
0
  @Override
  public AbstractLongList getRawNeighborhood(AtomicQuery query, InternalTitanTransaction tx) {
    Preconditions.checkArgument(
        QueryUtil.queryCoveredByDiskIndexes(query),
        "Raw retrieval is currently does not support in-memory filtering");
    List<Entry> entries = queryForEntries(query, tx.getTxHandle());

    InternalTitanVertex node = query.getNode();
    TitanType titanType = null;
    if (query.hasEdgeTypeCondition()) titanType = query.getTypeCondition();

    AbstractLongList result = new LongArrayList();

    for (Entry entry : entries) {
      if (!query.hasEdgeTypeCondition()) {
        long etid = IDHandler.readEdgeType(entry.getColumn(), idManager);
        if (titanType == null || titanType.getID() != etid) {
          titanType = getTypeFromID(etid, tx);
        }
      }
      if (titanType.isPropertyKey() || (!titanType.isModifiable() && !query.queryUnmodifiable())) {
        continue; // Skip since it does not match query
      }
      // Get neighboring node id
      long iddiff = VariableLong.read(entry.getValue());
      long nghid = iddiff + node.getID();
      result.add(nghid);

      if (result.size() >= query.getLimit()) break;
    }
    return result;
  }