com.google.common.collect
Class ForwardingQueue<E>

java.lang.Object
  com.google.common.collect.ForwardingObject
      com.google.common.collect.ForwardingCollection<E>
          com.google.common.collect.ForwardingQueue<E>

All Implemented Interfaces:

Iterable<E>, Collection<E>, Queue<E>

Direct Known Subclasses:

ForwardingBlockingQueue

public abstract class ForwardingQueue<E>
extends ForwardingCollection<E>
implements Queue<E>

A queue which forwards all its method calls to another queue. Subclasses should override one or more methods to modify the behavior of the backing queue as desired per the decorator pattern.

Since:

2 (imported from Google Collections Library)

Author:

Mike Bostock

See Also:

ForwardingObject

ForwardingQueue

protected ForwardingQueue()

Constructor for use by subclasses.

delegate

protected abstract Queue<E> delegate()

Description copied from class: ForwardingObject

Returns the backing delegate instance that methods are forwarded to. Abstract subclasses generally override this method with an abstract method that has a more specific return type, such as ForwardingSet.delegate(). Concrete subclasses override this method to supply the instance being decorated.

Specified by:

delegate in class ForwardingCollection<E>

offer

public boolean offer(E o)

Specified by:

offer in interface Queue<E>

poll

public E poll()

Specified by:

poll in interface Queue<E>

remove

public E remove()

Specified by:

remove in interface Queue<E>

peek

public E peek()

Specified by:

peek in interface Queue<E>

element

public E element()

Specified by:

element in interface Queue<E>