code: private void processPredecessors() throws SQLException
     {
        List<Row> rows = getTable("LINK");
        List<Row> completedSections = getTable("TASK_COMPLETED_SECTION");
        Collections.sort(rows, LINK_COMPARATOR);
        m_reader.processPredecessors(rows, completedSections);
     }
docs: Process predecessors.
  
  @throws SQLException