Package org.apache.jena.mem

Interface TripleBunch

All Known Implementing Classes:
ArrayBunch, HashedTripleBunch, SetBunch
public interface TripleBunch
A bunch of triples - a stripped-down set with specialized methods. A bunch is expected to store triples that share some useful property (such as having the same subject or predicate).

  • Method Details

    • contains

      boolean contains(Triple t)
      Answer true iff this TripleBunch contains a triple .equals to t.

    • containsBySameValueAs

      boolean containsBySameValueAs(Triple t)
      Answer true iff this TripleBunch contains a triple with .sameValueAs subject, predicate, and object. (Typically this only matters for the object. For example, integer literals with different numbers of leading zeroes can be .sameValueAs but not .equals).

    • size

      int size()
      Answer the number of triples in this bunch.

    • add

      void add(Triple t)
      Add t to the triples in this bunch. If t is already a member, nothing happens. The bunch now .contains this triple.

    • remove

      void remove(Triple t)
      Remove t from the triples in this bunch. If it wasn't a member, nothing happens. The bunch no longer .contains this triple.

    • iterator

      ExtendedIterator<Triple> iterator()
      Answer an iterator over all the triples in this bunch. It is unwise to .remove from this iterator. (It may become illegal.)

    • iterator

      ExtendedIterator<Triple> iterator(HashCommon.NotifyEmpty container)
      Answer an iterator over all the triples in this bunch. If use of .remove on this iterator empties the bunch, the emptied method of container is invoked.