docs: private void addSequence(String sequenceName, HighLowSequence seq)
      {
          // lookup the sequence map for calling DB
          String jcdAlias = getBrokerForClass()
                  .serviceConnectionManager().getConnectionDescriptor().getJcdAlias();
          Map mapForDB = (Map) sequencesDBMap.get(jcdAlias);
          if(mapForDB == null)
          {
              mapForDB = new HashMap();
          }
          mapForDB.put(sequenceName, seq);
          sequencesDBMap.put(jcdAlias, mapForDB);
      }