code: public static boolean isContainer(final IRI ldpType) {
          return LDP.Container.equals(ldpType) || LDP.BasicContainer.equals(ldpType)
              || LDP.DirectContainer.equals(ldpType) || LDP.IndirectContainer.equals(ldpType);
      }
docs: Check whether an LDP type is a sort of container.
  @param ldpType the LDP type to test
  @return true if it is a type of LDP container