TopologyHandler (Apache Sling Event 4.3.18 API)

java.lang.Object
- org.apache.sling.event.impl.jobs.config.TopologyHandler

All Implemented Interfaces:

Runnable, org.apache.sling.discovery.TopologyEventListener
```
public class TopologyHandler
extends Object
implements org.apache.sling.discovery.TopologyEventListener, Runnable
```
This topology handler is handling the topology change events asynchronously and processes them by queuing them.

Nested Class Summary

Nested Classes
Modifier and Type Class Description

static class TopologyHandler.QueueItem
We need a holder class to be able to put something into the queue to stop it.

Constructor Summary

Constructors
Constructor Description

TopologyHandler()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`protected void`	`activate()`
`protected void`	`deactivate()`
`void`	`handleTopologyEvent(org.apache.sling.discovery.TopologyEvent event)`
`void`	`run()`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - TopologyHandler
```
public TopologyHandler()
```
- Method Detail
  - activate
```
protected void activate()
```
  - deactivate
```
protected void deactivate()
```
  - handleTopologyEvent
```
public void handleTopologyEvent(org.apache.sling.discovery.TopologyEvent event)
```
    Specified by:
    
    handleTopologyEvent in interface org.apache.sling.discovery.TopologyEventListener
  - run
```
public void run()
```
    Specified by:
    
    run in interface Runnable