org.apache.sling.discovery

Class TopologyEvent

java.lang.Object

org.apache.sling.discovery.TopologyEvent

public class TopologyEvent
extends java.lang.Object

A topology event is sent whenever a change in the topology occurs. This event object might be extended in the future with new event types and methods.

See Also:

TopologyEventListener

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	TopologyEvent.Type

Constructor Summary

Constructors

Constructor and Description
TopologyEvent(TopologyEvent.Type type, TopologyView oldView, TopologyView newView)

Method Summary

Modifier and Type	Method and Description
TopologyView	getNewView() Returns the view which is currently (i.e.
TopologyView	getOldView() Returns the view which was valid up until now.
TopologyEvent.Type	getType() Returns the type of this event
java.lang.String	toString()

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

TopologyEvent

public TopologyEvent(TopologyEvent.Type type,
                     TopologyView oldView,
                     TopologyView newView)

Method Detail

getType

public TopologyEvent.Type getType()

Returns the type of this event

Returns:

the type of this event

getOldView

public TopologyView getOldView()

Returns the view which was valid up until now.

This is null in case of TOPOLOGY_INIT

Returns:

the view which was valid up until now, or null in case of a fresh instance start

getNewView

public TopologyView getNewView()

Returns the view which is currently (i.e. newly) valid.

This is null in case of TOPOLOGY_CHANGING

Returns:

the view which is currently valid, or null in case of TOPOLOGY_CHANGING

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object