org.infinispan.notifications.cachelistener.event

Interface CacheEntryModifiedEvent<K,V>

All Superinterfaces:

CacheEntryEvent<K,V>, Event<K,V>, TransactionalEvent<K,V>

public interface CacheEntryModifiedEvent<K,V>
extends CacheEntryEvent<K,V>

This event subtype is passed in to any method annotated with CacheEntryModified

The CacheEntryModifiedEvent.getValue() method's behavior is specific to whether the callback is triggered before or after the event in question. For example, if event.isPre() is true, then event.getValue() would return the old value, prior to modification. If event.isPre() is false, then event.getValue() would return new new value. If the event is creating and inserting a new entry, the old value would be null.

Since:

4.0

Author:

Manik Surtani

Nested Class Summary

Nested classes/interfaces inherited from interface org.infinispan.notifications.cachelistener.event.Event

Event.Type

Method Summary

Methods

Modifier and Type	Method and Description
V	getValue() Retrieves the value of the entry being modified.
boolean	isCommandRetried() This will be true if the write command that caused this had to be retried again due to a topology change.
boolean	isCreated() Indicates whether the cache entry modification event is the result of the cache entry being created.

Methods inherited from interface org.infinispan.notifications.cachelistener.event.CacheEntryEvent

getKey, getMetadata

Methods inherited from interface org.infinispan.notifications.cachelistener.event.TransactionalEvent

getGlobalTransaction, isOriginLocal

Methods inherited from interface org.infinispan.notifications.cachelistener.event.Event

getCache, getType, isPre

Method Detail

getValue

V getValue()

Retrieves the value of the entry being modified.

Specified by:

getValue in interface CacheEntryEvent<K,V>

Returns:

the previous or new value of the entry, depending on whether isPre() is true or false.

isCreated

boolean isCreated()

Indicates whether the cache entry modification event is the result of the cache entry being created. This method helps determine if the cache entry was created when event.isPre() is false.

Returns:

true if the event is the result of the entry being created, otherwise it returns false indicating that the event was the result of a cache entry being updated

isCommandRetried

boolean isCommandRetried()

This will be true if the write command that caused this had to be retried again due to a topology change. This could be a sign that this event has been duplicated or another event was dropped and replaced (eg: ModifiedEvent replaced CreateEvent)

Returns:

Whether the command that caused this event was retried