Ejemplo n.º 1
0
  @Override
  public Item item(final QueryContext qc, final InputInfo ii) throws QueryException {
    final Data data = checkData(qc);
    final String path = path(1, qc);
    final Item item = toItem(exprs[2], qc);
    final Options opts = toOptions(3, Q_OPTIONS, new Options(), qc);

    final Updates updates = qc.resources.updates();
    final IntList docs = data.resources.docs(path);
    int d = 0;

    // delete binary resources
    final IOFile bin = data.meta.binary(path);
    if (bin == null || bin.isDir()) throw BXDB_REPLACE_X.get(info, path);

    if (item instanceof Bin) {
      updates.add(new DBStore(data, path, item, info), qc);
    } else {
      if (bin.exists()) updates.add(new DBDelete(data, path, info), qc);
      final NewInput input = checkInput(item, token(path));
      if (docs.isEmpty() || docs.get(0) == 0) {
        // no replacement of first document (because of TableDiskAccess#insert, used > 0, pre = 0)
        updates.add(new DBAdd(data, input, opts, qc, info), qc);
      } else {
        updates.add(new ReplaceDoc(docs.get(0), data, input, opts, qc, info), qc);
        d = 1;
      }
    }

    // delete old documents
    final int ds = docs.size();
    for (; d < ds; d++) updates.add(new DeleteNode(docs.get(d), data, info), qc);
    return null;
  }
Ejemplo n.º 2
0
 @Override
 public void add(final ValueCache cache) {
   for (final byte[] key : cache) {
     final IntList vals = cache.ids(key);
     if (!vals.isEmpty()) add(key, vals.sort().finish());
   }
   finish();
 }
Ejemplo n.º 3
0
  /**
   * Optimizes the structures of a database.
   *
   * @param data data
   * @param enforceText enforce creation or deletion of text index
   * @param enforceAttr enforce creation or deletion of attribute index
   * @param enforceToken enforce creation or deletion of token index
   * @param enforceFt enforce creation or deletion of full-text index
   * @param cmd calling command instance (may be {@code null})
   * @throws IOException I/O Exception during index rebuild
   */
  public static void optimize(
      final Data data,
      final boolean enforceText,
      final boolean enforceAttr,
      final boolean enforceToken,
      final boolean enforceFt,
      final Optimize cmd)
      throws IOException {

    // initialize structural indexes
    final MetaData md = data.meta;
    if (!md.uptodate) {
      data.paths.init();
      data.elemNames.init();
      data.attrNames.init();
      md.dirty = true;

      final IntList pars = new IntList(), elms = new IntList();
      int n = 0;

      for (int pre = 0; pre < md.size; ++pre) {
        final byte kind = (byte) data.kind(pre);
        final int par = data.parent(pre, kind);
        while (!pars.isEmpty() && pars.peek() > par) {
          pars.pop();
          elms.pop();
        }

        final int level = pars.size();
        if (kind == Data.DOC) {
          data.paths.put(0, Data.DOC, level);
          pars.push(pre);
          elms.push(0);
          ++n;
        } else if (kind == Data.ELEM) {
          final int id = data.nameId(pre);
          data.elemNames.index(data.elemNames.key(id), null, true);
          data.paths.put(id, Data.ELEM, level);
          pars.push(pre);
          elms.push(id);
        } else if (kind == Data.ATTR) {
          final int id = data.nameId(pre);
          final byte[] val = data.text(pre, false);
          data.attrNames.index(data.attrNames.key(id), val, true);
          data.paths.put(id, Data.ATTR, level, val, md);
        } else {
          final byte[] val = data.text(pre, true);
          if (kind == Data.TEXT && level > 1) data.elemNames.index(elms.peek(), val);
          data.paths.put(0, kind, level, val, md);
        }
        if (cmd != null) cmd.pre = pre;
      }
      md.ndocs = n;
      md.uptodate = true;
    }

    // rebuild value indexes
    optimize(IndexType.TEXT, data, md.createtext, md.textindex, enforceText, cmd);
    optimize(IndexType.ATTRIBUTE, data, md.createattr, md.attrindex, enforceAttr, cmd);
    optimize(IndexType.TOKEN, data, md.createtoken, md.tokenindex, enforceToken, cmd);
    optimize(IndexType.FULLTEXT, data, md.createft, md.ftindex, enforceFt, cmd);
  }