code: @Override
      /**
       * Export schema handles the handleOperation method.
       */
      public void exportSchema(final String persistenceUnit, List<TableInfo> schemas)
      {
          cql_version = externalProperties != null ? (String) externalProperties.get(CassandraConstants.CQL_VERSION)
                  : CassandraConstants.CQL_VERSION_2_0;
          super.exportSchema(persistenceUnit, schemas);
      }
docs: /*
  (non-Javadoc)
  
  @see
  com.impetus.kundera.configure.schema.api.AbstractSchemaManager#exportSchema
  (java.lang.String, java.util.List)