oracle.toplink.descriptors
Class AllFieldsLockingPolicy

java.lang.Object
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  +--oracle.toplink.descriptors.FieldsLockingPolicy
        |
        +--oracle.toplink.descriptors.AllFieldsLockingPolicy

All Implemented Interfaces:

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

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()
PUBLIC: Create a new all fields locking policy.

Method Summary

Type	Method

Methods inherited from class oracle.toplink.descriptors.FieldsLockingPolicy

Methods inherited from class java.lang.Object

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

Constructor Detail

AllFieldsLockingPolicy

public AllFieldsLockingPolicy()

PUBLIC: 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.

Method Detail