com.objectwave.persist.mapping
Class NullChange

java.lang.Object
  |
  +--com.objectwave.transactionalSupport.ObjectModified
        |
        +--com.objectwave.persist.mapping.NullChange

All Implemented Interfaces:

ObjectChangeRequest

public class NullChange

extends ObjectModified

implements ObjectChangeRequest

For a special kind of change to this object. In particular, a delete request sent to this object.

Version:

$Id: NullChange.java,v 2.0 2001/06/11 16:00:04 dave_hoag Exp $

Author:

dhoag

Nested Class Summary

Nested classes inherited from class com.objectwave.transactionalSupport.ObjectModified

ObjectModified.Test

Constructor Summary

NullChange(RDBPersistentAdapter anAdapter, boolean delete, boolean anInsert)
Constructor for the NullChange object

Method Summary

void	commit(boolean force) Commit the change.
java.lang.Object	currentValue()
boolean	isCollection() Gets the Collection attribute of the NullChange object
java.lang.Object	originalValue()
boolean	returnThis() ObjectModified objects are returned to a pool of object modified objects.
void	rollback() Change the domain object to contain the 'old' value.

Methods inherited from class com.objectwave.transactionalSupport.ObjectModified

clean, getAccessor, initObjectModified

Methods inherited from class java.lang.Object

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

Constructor Detail

NullChange

public NullChange(RDBPersistentAdapter anAdapter,
                  boolean delete,
                  boolean anInsert)

Constructor for the NullChange object

Parameters:

delete -

anInsert -

anAdapter -

Method Detail

isCollection

public boolean isCollection()

Gets the Collection attribute of the NullChange object

Specified by:

isCollection in interface ObjectChangeRequest

Overrides:

isCollection in class ObjectModified

Returns:

The Collection value

returnThis

public boolean returnThis()

ObjectModified objects are returned to a pool of object modified objects. Don't return this instance of an ObjectModified to the pool.

Overrides:

returnThis in class ObjectModified

Returns:

commit

public void commit(boolean force)
            throws UpdateException

Description copied from interface: ObjectChangeRequest

Commit the change.

Specified by:

commit in interface ObjectChangeRequest

Overrides:

commit in class ObjectModified

Parameters:

force -

Throws:

UpdateException

rollback

public void rollback()

Description copied from class: ObjectModified

Change the domain object to contain the 'old' value. There is nothing to rollback if I did not commit.

Specified by:

rollback in interface ObjectChangeRequest

Overrides:

rollback in class ObjectModified

currentValue

public java.lang.Object currentValue()

Specified by:

currentValue in interface ObjectChangeRequest

Overrides:

currentValue in class ObjectModified

Returns:

originalValue

public java.lang.Object originalValue()

Specified by:

originalValue in interface ObjectChangeRequest

Overrides:

originalValue in class ObjectModified

Returns: