Package org.apache.openjpa.util

Interface Proxy

All Known Subinterfaces:
LRSProxy, ProxyBean, ProxyCalendar, ProxyCollection, ProxyDate, ProxyMap
All Known Implementing Classes:
AbstractLRSProxyCollection, AbstractLRSProxyMap, DelayedArrayListProxy, DelayedHashSetProxy, DelayedLinkedHashSetProxy, DelayedLinkedListProxy, DelayedPriorityQueueProxy, DelayedTreeSetProxy, DelayedVectorProxy, LRSProxyCollection
public interface Proxy
Interface implemented by all proxy types to allow setting and nulling of their owning instance. All concrete proxy classes should be public and have publc no-args constructors so that tools that work via reflection on persistent instances can manipulate them.
Author:
Abe White

  • Method Details

    • setOwner

      void setOwner(OpenJPAStateManager sm, int field)
      Reset the state of the proxy, and set the owning instance of the proxy and the name of the field it is assigned to. Set to null to indicate that the proxy is no longer managed.

    • getOwner

      OpenJPAStateManager getOwner()
      Return the owning object.

    • getOwnerField

      int getOwnerField()
      Return the owning field index.

    • getChangeTracker

      ChangeTracker getChangeTracker()
      Return the change tracker for this proxy, or null if none.

    • copy

      Object copy(Object orig)
      Return an unproxied copy of the given instance. This method is used by proxy managers to create backup values for use in rollback.