Interface PersistableRelationStore

All Superinterfaces:
Store
public interface PersistableRelationStore extends Store
Representation of the relation between two persistable objects. Provides the connectivity to the datastore allowing the relation to be managed separately. In an RDBMS sense, this is for an N-1 unidirectional join table relation, and represents the join table entry.

  • Method Details

    • add

      boolean add(DNStateManager sm1, DNStateManager sm2)
      Method to add the relation between the provided objects.
      Parameters:
      sm1 - Object 1 StateManager
      sm2 - Object 2 StateManager
      Returns:
      Whether the relation was added

    • remove

      boolean remove(DNStateManager sm1)
      Method to remove the relation from the provided object.
      Parameters:
      sm1 - Object 1 StateManager
      Returns:
      Whether the relation was removed

    • update

      boolean update(DNStateManager sm1, DNStateManager sm2)
      Method to update the relation for the first object to relate to the second object. This removes any previous relation from this object and replaces it with the new relation.
      Parameters:
      sm1 - Object 1 StateManager
      sm2 - Object 2 StateManager
      Returns:
      Whether the relation was replaced