oracle.ias.cache
Class CacheEvent

java.lang.Object
  |
  +--java.util.EventObject
        |
        +--oracle.ias.cache.CacheEvent

All Implemented Interfaces:

java.io.Serializable

public class CacheEvent

extends java.util.EventObject

CacheEvent represents an internal cache event. It extends java.util.EventObject. If an event happens on a cached object, the source object in CacheEvent is the cached object which relates to the event that just happened. If an event happens on a cache group, the source object in CacheEvent is the group name which relates to the event that just happened. Event id is used to identify different types of events. Application can register a CacheEventListener to handle event. Currently, only the OBJECT_INVALIDATED and OBJECT_UPDATED events are defined.

Since:

2.0.0

See Also:

Serialized Form

Field Summary

Type	Field
static int	OBJECT_INVALIDATED Represents the object or group invalidated event.
static int	OBJECT_UPDATED Represents the object updated event.

Fields inherited from class java.util.EventObject

source

Constructor Summary

Type	Constructor
protected	CacheEvent(int id, java.lang.Object name, java.lang.Object src, CacheEventListener ltn) Creates a new CacheEvent.

Method Summary

Type	Method
int	getId() getId returns the event identifier.
java.lang.Object	getName() getName returns the name of the object associated with the event

Methods inherited from class java.util.EventObject

getSource, toString

Methods inherited from class java.lang.Object

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

Field Detail

OBJECT_INVALIDATED

public static final int OBJECT_INVALIDATED

Represents the object or group invalidated event. This event can happen in the following scenarioes:

application explicitly invalidates the object or the group.

time to live expires

idle time expires

OBJECT_UPDATED

public static final int OBJECT_UPDATED

Represents the object updated event. This event can happen when a cached object gets updated. This event usally triggered by a CacheAccess.replace call.

Constructor Detail

CacheEvent

protected CacheEvent(int id,
                     java.lang.Object name,
                     java.lang.Object src,
                     CacheEventListener ltn)

Creates a new CacheEvent.

Parameters:

src - is the source object. If the event happens on a cached object, the cached object is the source object. If the event happens on a cache group, the group name is the source object.

id - is the event identifier. Currently, only OBJECT_INVALIDATED and OBJECT_UPDATED are supported

Since:

2.0.0

Method Detail

getId

public int getId()

getId returns the event identifier.

Returns:

event identifier.

Since:

2.0.0

getName

public java.lang.Object getName()

getName returns the name of the object associated with the event

Returns:

object name

Since:

2.1.0