oracle.toplink.descriptors
Class AllFieldsLockingPolicy

java.lang.Object
  oracle.toplink.descriptors.FieldsLockingPolicy
      oracle.toplink.descriptors.AllFieldsLockingPolicy

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable, oracle.toplink.internal.descriptors.OptimisticLockingPolicy

public class AllFieldsLockingPolicy
extends FieldsLockingPolicy

Purpose: An implementation of the OptimisticLockingPolicy interface. This policy compares every field in the table in the WHERE clause when doing an update or a delete. If any field has been changed, an optimistic locking exception will be thrown.

NOTE: This policy can only be used inside a unit of work.

Since:

TopLink 2.1

See Also:

Serialized Form

Constructor Summary

AllFieldsLockingPolicy()
Create a new all fields locking policy.

Method Summary

Methods inherited from class oracle.toplink.descriptors.FieldsLockingPolicy

isCascaded, isStoredInCache

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

AllFieldsLockingPolicy

public AllFieldsLockingPolicy()

Create a new all fields locking policy. A field locking policy is based on locking on all fields by comparing with their previous values to detect field-level collisions. Note: the unit of work must be used for all updates when using field locking.