@Override
  protected List<@NonNls String> getImplicitPropertyNames() {
    String prefix = getPrefix().getStringValue();
    if (prefix == null) {
      return Arrays.asList(DSTAMP, TSTAMP, TODAY);
    }
    if (!prefix.endsWith(".")) {
      prefix += ".";
    }
    return Arrays.asList(prefix + DSTAMP, prefix + TSTAMP, prefix + TODAY);
  }
@Override
  protected List<@NonNls String> getImplicitPropertyNames()