textbender.g.util
Class CollectionRelayerLL<E>

java.lang.Object
  CollectionRelayer<E>
      CollectionRelayerLL<E>

All Implemented Interfaces:

EventListener, CollectionListener<E>

@ThreadSafe
public final class CollectionRelayerLL<E>
extends CollectionRelayer<E>

Relayer of collection events, with a collection of listeners that is guarded by a lock. Thread-safe if the listeners are thread-safe.

Nested Class Summary

Nested classes/interfaces inherited from interface CollectionListener

CollectionListener.Registry<E>

Constructor Summary

CollectionRelayerLL(Collection<CollectionListener<E>> listeners, Object listenersLock)
Creates a CollectionRelayerLL.

Method Summary

protected Collection<CollectionListener<E>>

listenersCopy() Returns a copy of the listener collection.

Methods inherited from class CollectionRelayer

elementAdded, elementRemoved

Methods inherited from class java.lang.Object

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

Constructor Detail

CollectionRelayerLL

public CollectionRelayerLL(Collection<CollectionListener<E>> listeners,
                           Object listenersLock)

Creates a CollectionRelayerLL.

Parameters:

listeners - to whom events are relayed

listenersLock - held when making a copy of the collection of listeners, prior to relaying each event

Method Detail

listenersCopy

protected Collection<CollectionListener<E>> listenersCopy()

Description copied from class: CollectionRelayer

Returns a copy of the listener collection. A copy is used to guard against collection modification during relay, e.g. by the listeners themselves, which would cause relay iteration to fail.

Overrides:

listenersCopy in class CollectionRelayer<E>