Package org.odmg

Interface DSet

All Superinterfaces:
Collection, DCollection, Iterable, Set
All Known Implementing Classes:
RasSet
public interface DSet extends DCollection, Set
The ODMG Set collection interface. A DSet object is an unordered collection that does not support multiple elements with the same value. An implementation typically is very efficient at determining whether the collection contains a particular value.

All of the operations defined by the JavaSoft Set interface are supported by an ODMG implementation of DSet, the exception UnsupportedOperationException is not thrown when a call is made to any of the Set methods.

Author:
David Jordan (as Java Editor of the Object Data Management Group)

  • Method Details

    • union

      DSet union(DSet otherSet)
      Create a new DSet object that is the set union of this DSet object and the set referenced by otherSet,
      not yet available in RasDaMan.
      Parameters:
      otherSet - The other set to be used in the union operation.
      Returns:
      A newly created DSet instance that contains the union of the two sets.

    • intersection

      DSet intersection(DSet otherSet)
      Create a new DSet object that is the set intersection of this DSet object and the set referenced by otherSet,
      not yet available in RasDaMan.
      Parameters:
      otherSet - The other set to be used in the intersection operation.
      Returns:
      A newly created DSet instance that contains the intersection of the two sets.

    • difference

      DSet difference(DSet otherSet)
      Create a new DSet object that contains the elements of this collection minus the elements in otherSet,
      not yet available in RasDaMan.
      Parameters:
      otherSet - A set containing elements that should not be in the result set.
      Returns:
      A newly created DSet instance that contains the elements of this set minus those elements in otherSet.

    • subsetOf

      boolean subsetOf(DSet otherSet)
      Determine whether this set is a subset of the set referenced by otherSet,
      not yet available in RasDaMan.
      Parameters:
      otherSet - Another set.
      Returns:
      True if this set is a subset of the set referenced by otherSet, otherwise false.

    • properSubsetOf

      boolean properSubsetOf(DSet otherSet)
      Determine whether this set is a proper subset of the set referenced by otherSet,
      not yet available in RasDaMan.
      Parameters:
      otherSet - Another set.
      Returns:
      True if this set is a proper subset of the set referenced by otherSet, otherwise false.

    • supersetOf

      boolean supersetOf(DSet otherSet)
      Determine whether this set is a superset of the set referenced by otherSet,
      not yet available in RasDaMan.
      Parameters:
      otherSet - Another set.
      Returns:
      True if this set is a superset of the set referenced by otherSet, otherwise false.

    • properSupersetOf

      boolean properSupersetOf(DSet otherSet)
      Determine whether this set is a proper superset of the set referenced by otherSet,
      not yet available in RasDaMan.
      Parameters:
      otherSet - Another set.
      Returns:
      True if this set is a proper superset of the set referenced by otherSet, otherwise false.