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

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

All Implemented Interfaces:

Serializable, Iterable<E>, Collection<E>, Set<E>

Direct Known Subclasses:

ForwardingSortedSet

public abstract class ForwardingSet<E>
extends ForwardingCollection<E>
implements Set<E>

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

Author:

Kevin Bourrillion

See Also:

ForwardingObject, Serialized Form

Constructor Summary

protected

ForwardingSet(Set<E> delegate) Constructs a forwarding set that forwards to the provided delegate.

Method Summary

protected Set<E>	delegate() Returns the backing delegate object.
boolean	equals(Object obj)
int	hashCode()

Methods inherited from class com.google.common.collect.ForwardingCollection

add, addAll, clear, contains, containsAll, containsAllImpl, containsImpl, isEmpty, iterator, remove, removeAll, removeAllImpl, removeImpl, retainAll, retainAllImpl, size, toArray, toArray, toArrayImpl, toArrayImpl, toStringImpl

Methods inherited from class com.google.common.collect.ForwardingObject

toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Set

add, addAll, clear, contains, containsAll, isEmpty, iterator, remove, removeAll, retainAll, size, toArray, toArray

Constructor Detail

ForwardingSet

protected ForwardingSet(Set<E> delegate)

Constructs a forwarding set that forwards to the provided delegate.

Method Detail

delegate

protected Set<E> delegate()

Description copied from class: ForwardingObject

Returns the backing delegate object. This method should be overridden to specify the correct return type. For example:

  @SuppressWarnings("unchecked")
  @Override protected Foo delegate() {
    return (Foo) super.delegate();
  }

This method should always return the same delegate instance that was passed to the constructor.

Overrides:

delegate in class ForwardingCollection<E>

equals

public boolean equals(Object obj)

Specified by:

equals in interface Collection<E>

Specified by:

equals in interface Set<E>

Overrides:

equals in class Object

hashCode

public int hashCode()

Specified by:

hashCode in interface Collection<E>

Specified by:

hashCode in interface Set<E>

Overrides:

hashCode in class Object