public abstract class ForwardingSortedSet<E> extends ForwardingSet<E> implements java.util.SortedSet<E>
Warning: The methods of ForwardingSortedSet 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.
default method warning: This class does not forward calls to default methods. Instead, it inherits their default implementations. When those implementations
invoke methods, they invoke methods on the ForwardingSortedSet.
Each of the standard methods, where appropriate, uses the set's comparator (or the
natural ordering of the elements, if there is no comparator) to test element equality. As a
result, if the comparator is not consistent with equals, some of the standard implementations may
violate the Set contract.
The standard methods and the collection views they return 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 |
ForwardingSortedSet()
Constructor for use by subclasses.
|
| Modifier and Type | Method and Description |
|---|---|
java.util.Comparator<? super E> |
comparator() |
protected abstract java.util.SortedSet<E> |
delegate()
Returns the backing delegate instance that methods are forwarded to.
|
E |
first() |
java.util.SortedSet<E> |
headSet(E toElement) |
E |
last() |
protected boolean |
standardContains(java.lang.Object object)
A sensible definition of
ForwardingCollection.contains(java.lang.Object) in terms of the first() method of tailSet(E). |
protected boolean |
standardRemove(java.lang.Object object)
A sensible definition of
ForwardingCollection.remove(java.lang.Object) in terms of the iterator() method of tailSet(E). |
protected java.util.SortedSet<E> |
standardSubSet(E fromElement,
E toElement)
A sensible default implementation of
subSet(Object, Object) in terms of headSet(Object) and tailSet(Object). |
java.util.SortedSet<E> |
subSet(E fromElement,
E toElement) |
java.util.SortedSet<E> |
tailSet(E fromElement) |
equals, hashCode, standardEquals, standardHashCode, standardRemoveAlladd, addAll, clear, contains, containsAll, isEmpty, iterator, remove, removeAll, retainAll, size, standardAddAll, standardClear, standardContainsAll, standardIsEmpty, standardRetainAll, standardToArray, standardToArray, standardToString, toArray, toArraytoStringclone, finalize, getClass, notify, notifyAll, wait, wait, waitprotected ForwardingSortedSet()
protected abstract java.util.SortedSet<E> delegate()
ForwardingObjectForwardingSet.delegate(). Concrete subclasses override this method to supply the
instance being decorated.delegate in class ForwardingSet<E>@CheckForNull public java.util.Comparator<? super E> comparator()
comparator in interface java.util.SortedSet<E>public java.util.SortedSet<E> headSet(E toElement)
headSet in interface java.util.SortedSet<E>public java.util.SortedSet<E> subSet(E fromElement, E toElement)
subSet in interface java.util.SortedSet<E>public java.util.SortedSet<E> tailSet(E fromElement)
tailSet in interface java.util.SortedSet<E>protected boolean standardContains(@CheckForNull
java.lang.Object object)
ForwardingCollection.contains(java.lang.Object) in terms of the first() method of tailSet(E). If you override tailSet(E), you may wish to override ForwardingCollection.contains(java.lang.Object) to
forward to this implementation.standardContains in class ForwardingCollection<E>protected boolean standardRemove(@CheckForNull
java.lang.Object object)
ForwardingCollection.remove(java.lang.Object) in terms of the iterator() method of tailSet(E). If you override tailSet(E), you may wish to override ForwardingCollection.remove(java.lang.Object) to
forward to this implementation.standardRemove in class ForwardingCollection<E>protected java.util.SortedSet<E> standardSubSet(E fromElement, E toElement)
subSet(Object, Object) in terms of headSet(Object) and tailSet(Object). In some situations, you may wish to override
subSet(Object, Object) to forward to this implementation.