TopologyEvent (The Adobe Experience Manager SDK 2022.11.9850.20221116T162329Z-220900)

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 Description

static class TopologyEvent.Type

Constructor Summary

Constructors
Constructor Description

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

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	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