org.jboss.cache.notifications.event

Interface NodeModifiedEvent

All Superinterfaces:

Event, NodeEvent, TransactionalEvent

All Known Implementing Classes:

EventImpl

public interface NodeModifiedEvent
extends NodeEvent

This event is passed in to any method annotated with NodeModified

Since:

2.0.0

Author:

Manik Surtani

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static class	NodeModifiedEvent.ModificationType Different cache modification types.

Nested classes/interfaces inherited from interface org.jboss.cache.notifications.event.Event

Event.Type

Method Summary

Methods

Modifier and Type	Method and Description
Map	getData() When called with isPre() == true, this is the initial state of the Node before modification.
NodeModifiedEvent.ModificationType	getModificationType()

Methods inherited from interface org.jboss.cache.notifications.event.NodeEvent

getFqn

Methods inherited from interface org.jboss.cache.notifications.event.TransactionalEvent

getTransaction, isOriginLocal

Methods inherited from interface org.jboss.cache.notifications.event.Event

getCache, getType, isPre

Method Detail

getModificationType

NodeModifiedEvent.ModificationType getModificationType()

Returns:

an instance of the NodeModifiedEvent.ModificationType enumeration.

getData

Map getData()

When called with isPre() == true, this is the initial state of the Node before modification.

When called with isPre() == false, this depends on the value of getModificationType():

• NodeModifiedEvent.ModificationType.PUT_DATA: Map contains the single key/value pair that was added or modified.
• NodeModifiedEvent.ModificationType.REMOVE_DATA: Map contains the key/value pairs that were removed.
• NodeModifiedEvent.ModificationType.PUT_MAP: Map contains the new state of the Node following modification. This map includes modified key/value pairs as well as any that were not affected.

Implementations interested in seeing the difference in the node data in the NodeModifiedEvent.ModificationType.PUT_MAP case can cache the value of getData() map passed when isPre() == true, and then when the isPre() == false callback is received, pass the cached map and the new result of getData() to Util.diffNodeData(java.util.Map,java.util.Map)

Returns:

Unmodifiable Map; will not be null. See description above.