code: public String compareDatastreamChecksum(Context context,
                                              String pid,
                                              String dsID,
                                              Date versionDate)
              throws ServerException {
          return delegate.compareDatastreamChecksum(context,
                                                    pid,
                                                    dsID,
                                                    versionDate);
      }
docs: Read-only method: pass the call to the {@link ManagementDelegate}.