code: private synchronized void startCache()
      {
          for (PDatabase pDatabase : m_htDBList.values())
          {
              for (PTable pTable : pDatabase.getTableList().values())
              {
                  this.addTableToCache(pTable);
              }
          }
      }
docs: This will set this database to start caching records by bumping the use count of all the open tables.