Interface CallbackInterceptor

All Known Implementing Classes:
JDOCallback, JPACallbackHandler

public interface CallbackInterceptor
A callback interceptor informs objects about changes to their state. Different callbacks can cause different methods to be called on the objects.
Version:
$Revision: 8623 $ $Date: 2005-04-17 04:29:33 -0600 (Sun, 17 Apr 2005) $
Author:
Assaf Arkin
  • Method Summary

    Modifier and Type
    Method
    Description
    void
    created(Object object)
    Called to indicate that an object has been created.
    void
    creating(Object object, Database db)
    Called to indicate that an object is to be created in persistent storage.
    loaded(Object object, AccessMode accessMode)
    Called to indicate that the object has been loaded from persistent storage.
    void
    modifying(Object object)
    Called to indicate that an object has been modified and is up to storing.
    void
    releasing(Object object, boolean committed)
    Called to indicate that an object has been made transient.
    void
    removed(Object object)
    Called to indicate that an object has been deleted.
    void
    removing(Object object)
    Called to indicate that an object is to be deleted.
    void
    storing(Object object, boolean modified)
    Called to indicate that an object is to be stored in persistent storage.
    void
    updated(Object object)
    Called to indicate that an object has been updated at the end of a "long" transaction.
    void
    using(Object object, Database db)
    Called to indicate that an object has been made persistent.
  • Method Details

    • loaded

      Class<?> loaded(Object object, AccessMode accessMode) throws Exception
      Called to indicate that the object has been loaded from persistent storage.
      Parameters:
      object - The object
      Returns:
      null or the extending Class. In the latter case Castor will reload the object of the given class with the same identity.
      Throws:
      Exception - An exception occured, the object cannot be loaded
    • modifying

      void modifying(Object object) throws Exception
      Called to indicate that an object has been modified and is up to storing.
      Parameters:
      object - The object
      Throws:
      Exception - An exception occured, the object cannot be stored
    • storing

      void storing(Object object, boolean modified) throws Exception
      Called to indicate that an object is to be stored in persistent storage.
      Parameters:
      object - The object
      modified - Is the object modified?
      Throws:
      Exception - An exception occured, the object cannot be stored
    • creating

      void creating(Object object, Database db) throws Exception
      Called to indicate that an object is to be created in persistent storage.
      Parameters:
      object - The object
      db - The database in which this object will be created
      Throws:
      Exception
    • created

      void created(Object object) throws Exception
      Called to indicate that an object has been created.
      Parameters:
      object - The object
      Throws:
      Exception
    • removing

      void removing(Object object) throws Exception
      Called to indicate that an object is to be deleted.

      This method is made at commit time on objects deleted during the transaction before setting their fields to null.

      Parameters:
      object - The object
      Throws:
      Exception
    • removed

      void removed(Object object) throws Exception
      Called to indicate that an object has been deleted.

      This method is called during db.remove().

      Parameters:
      object - The object
      Throws:
      Exception
    • releasing

      void releasing(Object object, boolean committed)
      Called to indicate that an object has been made transient.

      This method is made at commit or rollback time on all objects that were presistent during the life time of the transaction.

      Parameters:
      object - The object
      committed - True if the object has been commited, false if rollback or otherwise cancelled
    • using

      void using(Object object, Database db)
      Called to indicate that an object has been made persistent.
      Parameters:
      object - The object
      db - The database to which this object belongs
    • updated

      void updated(Object object) throws Exception
      Called to indicate that an object has been updated at the end of a "long" transaction.
      Parameters:
      object - The object
      Throws:
      Exception