@GwtCompatible public abstract class ForwardingSet<E> extends ForwardingCollection<E> implements Set<E>
Warning: The methods of ForwardingSet forward
indiscriminately to the methods of the delegate. For example,
overriding ForwardingCollection.add(E) alone will not change the behavior of ForwardingCollection.addAll(java.util.Collection<? extends E>), which can lead to unexpected behavior. In this case, you should
override addAll as well, either providing your own implementation, or
delegating to the provided standardAddAll method.
The standard methods are not guaranteed to be thread-safe, even
when all of the methods that they depend on are thread-safe.
| Modifier | Constructor and Description |
|---|---|
protected |
ForwardingSet()
Constructor for use by subclasses.
|
| Modifier and Type | Method and Description |
|---|---|
protected abstract Set<E> |
delegate()
Returns the backing delegate instance that methods are forwarded to.
|
boolean |
equals(Object object) |
int |
hashCode() |
protected boolean |
standardEquals(Object object)
A sensible definition of
equals(java.lang.Object) in terms of ForwardingCollection.size() and
ForwardingCollection.containsAll(java.util.Collection<?>). |
protected int |
standardHashCode()
A sensible definition of
hashCode() in terms of ForwardingCollection.iterator(). |
protected boolean |
standardRemoveAll(Collection<?> collection)
A sensible definition of
ForwardingCollection.removeAll(java.util.Collection<?>) in terms of ForwardingCollection.iterator()
and ForwardingCollection.remove(java.lang.Object). |
add, addAll, clear, contains, containsAll, isEmpty, iterator, remove, removeAll, retainAll, size, standardAddAll, standardClear, standardContains, standardContainsAll, standardIsEmpty, standardRemove, standardRetainAll, standardToArray, standardToArray, standardToString, toArray, toArraytoStringprotected ForwardingSet()
protected abstract Set<E> delegate()
ForwardingObjectdelegate(). Concrete subclasses override this method to supply
the instance being decorated.delegate in class ForwardingCollection<E>public int hashCode()
protected boolean standardRemoveAll(Collection<?> collection)
ForwardingCollection.removeAll(java.util.Collection<?>) in terms of ForwardingCollection.iterator()
and ForwardingCollection.remove(java.lang.Object). If you override iterator or remove,
you may wish to override ForwardingCollection.removeAll(java.util.Collection<?>) to forward to this
implementation.standardRemoveAll in class ForwardingCollection<E>ForwardingCollection version as of 12.0)protected boolean standardEquals(@Nullable Object object)
equals(java.lang.Object) in terms of ForwardingCollection.size() and
ForwardingCollection.containsAll(java.util.Collection<?>). If you override either of those methods, you may wish
to override equals(java.lang.Object) to forward to this implementation.protected int standardHashCode()
hashCode() in terms of ForwardingCollection.iterator().
If you override ForwardingCollection.iterator(), you may wish to override equals(java.lang.Object)
to forward to this implementation.Copyright © 2010-2015. All Rights Reserved.