AbstractListenerManager (ONOS Java API (2.5.1))

java.lang.Object
- org.onosproject.event.AbstractListenerManager<E,L>

All Implemented Interfaces:: ListenerService<E,L>

public abstract class AbstractListenerManager<E extends Event,L extends EventListener<E>>
extends Object
implements ListenerService<E,L>

Basis for components which need to export listener mechanism.

Field Summary

Fields
Modifier and Type Field Description

protected EventDeliveryService eventDispatcher

protected ListenerRegistry<E,L> listenerRegistry

Constructor Summary

Constructors
Constructor Description

AbstractListenerManager()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`addListener(L listener)`	Adds the specified listener.
`protected void`	`post(E event)`	Safely posts the specified event to the local event dispatcher.
`void`	`removeListener(L listener)`	Removes the specified listener.

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

- Field Detail
  - listenerRegistry
```
protected final ListenerRegistry<E extends Event,L extends EventListener<E>> listenerRegistry
```
  - eventDispatcher
```
protected EventDeliveryService eventDispatcher
```
- Constructor Detail
  - AbstractListenerManager
```
public AbstractListenerManager()
```
- Method Detail
  - addListener
```
public void addListener(L listener)
```
    Description copied from interface: ListenerService
    
    Adds the specified listener.
    
    Specified by:
    
    addListener in interface ListenerService<E extends Event,L extends EventListener<E>>
    
    Parameters:
    
    listener - listener to be added
  - removeListener
```
public void removeListener(L listener)
```
    Description copied from interface: ListenerService
    
    Removes the specified listener.
    
    Specified by:
    
    removeListener in interface ListenerService<E extends Event,L extends EventListener<E>>
    
    Parameters:
    
    listener - listener to be removed
  - post
```
protected void post(E event)
```
    Safely posts the specified event to the local event dispatcher. If there is no event dispatcher or if the event is null, this method is a noop.
    
    Parameters:
    
    event - event to be posted; may be null