io.atomix.catalyst.concurrent

Class Listeners<T>

java.lang.Object

io.atomix.catalyst.concurrent.Listeners<T>

Type Parameters:

T - event type

All Implemented Interfaces:

Iterable<Listener<T>>

public class Listeners<T>
extends Object
implements Iterable<Listener<T>>

Utility for managing a set of listeners.

Author:

Jordan Halterman

Constructor Summary

Constructors

Constructor and Description
Listeners()

Method Summary

Modifier and Type	Method and Description
CompletableFuture<Void>	accept(T event) Applies an event to all listeners.
Listener<T>	add(Consumer<T> listener) Adds a listener to the set of listeners.
Iterator<Listener<T>>	iterator()
int	size() Returns the number of registered listeners.

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Constructor Detail

Listeners

public Listeners()

Method Detail

size

public int size()

Returns the number of registered listeners.

Returns:

The number of registered listeners.

add

public Listener<T> add(Consumer<T> listener)

Adds a listener to the set of listeners.

Parameters:

listener - The listener to add.

Returns:

The listener context.

Throws:

NullPointerException - if listener is null

accept

public CompletableFuture<Void> accept(T event)

Applies an event to all listeners.

Parameters:

event - The event to apply.

Returns:

A completable future to be completed once all listeners have been completed.

iterator

public Iterator<Listener<T>> iterator()

Specified by:

iterator in interface Iterable<Listener<T>>