code: public boolean purgeRelationship(Context context,
                                       String pid,
                                       String relationship,
                                       String object,
                                       boolean isLiteral,
                                       String datatype) throws ServerException {
          return worker.purgeRelationship(context,
                                          pid,
                                          relationship,
                                          object,
                                          isLiteral,
                                          datatype);
      }
docs: Delegate to the JournalWorker.