docs: protected synchronized int loadSize() throws PersistenceBrokerException
      {
          PersistenceBroker broker = getBroker();
          try
          {
              return broker.getCount(getQuery());
          }
          catch (Exception ex)
          {
              throw new PersistenceBrokerException(ex);
          }
          finally
          {
              releaseBroker(broker);
          }
      }