329 words

javax.jdo.listener.InstanceLifecycleEvent - JDO class

javax.jdo.listener
Class InstanceLifecycleEvent

java.lang.Object
    java.util.EventObject
        javax.jdo.listener.InstanceLifecycleEvent
Implemented Interfaces:
Serializable
This is the event class used in life cycle event notifications.

Note that although InstanceLifecycleEvent inherits Serializable interface from EventObject, it is not intended to be Serializable. Appropriate serialization methods are implemented to throw NotSerializableException.

Since:
JDO 2.0
int ATTACH
Since:
JDO 2.0
int CLEAR
Since:
JDO 2.0
int CREATE
Since:
JDO 2.0
int DELETE
Since:
JDO 2.0
int DETACH
Since:
JDO 2.0
int DIRTY
Since:
JDO 2.0
int LOAD
Since:
JDO 2.0
int STORE
Since:
JDO 2.0
InstanceLifecycleEvent(Object source, int type)
Creates a new event object with the specified source and type.
Creates a new event object with the specified source and type.
Parameters:
source - the instance that triggered the event
type - the event type
Since:
JDO 2.0
InstanceLifecycleEvent(Object source, int type, Object target)
Creates a new event object with the specified source, type, and target.
Creates a new event object with the specified source, type, and target.
Parameters:
source - the instance that triggered the event
type - the event type
target - the "other" instance
Since:
JDO 2.0
Returns the detached instance involved in the event.
Returns the detached instance involved in the event.
Returns:
The detached instance involved in the event, or null if there was none.
Since:
JDO 2.0
See Also:
"Section 12.15, Java Data Objects 2.0 Specification"
Returns the event type that triggered this event.
Returns the event type that triggered this event.
Returns:
the event type
Since:
JDO 2.0
Returns the persistent instance involved in the event.
Returns the persistent instance involved in the event.
Returns:
The persistent instance involved in the event, or null if there was none.
Since:
JDO 2.0
See Also:
"Section 12.15, Java Data Objects 2.0 Specification"
Object getSource()
Object getSource()
The source object of the Event.
The source object of the Event. Although not deprecated, it is recommended that the the methods getPersistentInstance() and getDetachedInstance() be used instead.
Returns:
The persistent instance on any pre- callback except preAttach, or the detached instance for a postDetach or preAttach callback.
Since:
JDO 2.0
See Also:
getPersistentInstance()
getDetachedInstance()
"Section 12.15, Java Data Objects 2.0 Specification"
Object getTarget()
The target object of the Event.
The target object of the Event. Although not deprecated, it is recommended that the the methods getPersistentInstance() and getDetachedInstance() be used instead.
Returns:
The detached instance for preDetach and postAttach, the persistent instance otherwise.
Since:
JDO 2.0
See Also:
getPersistentInstance()
getDetachedInstance()
"Section 12.15, Java Data Objects 2.0 Specification"
String toString()

This documentation page is derived (with some adjustments) from the JDO 2.2 API
and is available under the terms of the Apache License, v. 2.0.