Overview  Package   Class  Use  Tree  Deprecated  Index  Help 
 PREV CLASS   NEXT CLASS FRAMES    NO FRAMES    
SUMMARY: NESTED | FIELD | CONSTR | METHOD DETAIL: FIELD | CONSTR | METHOD

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

java.lang.Object
  extended by com.google.common.collect.ForwardingObject
      extended by com.google.common.collect.ForwardingCollection<E>
          extended by com.google.common.collect.ForwardingSet<E>
              extended by com.google.common.collect.ForwardingSortedSet<E>
All Implemented Interfaces:
Iterable<E>, Collection<E>, Set<E>, SortedSet<E>
public abstract class ForwardingSortedSet<E>
extends ForwardingSet<E>
implements SortedSet<E>

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

Since:
2 (imported from Google Collections Library)
Author:
Mike Bostock

Constructor Summary
protected ForwardingSortedSet()
          Constructor for use by subclasses.
 
Method Summary
 Comparator<? super E> comparator()
          Returns the comparator used to order the elements in this set, or null if this set uses the natural ordering of its elements.
protected abstract  SortedSet<E> delegate()
          Returns the backing delegate instance that methods are forwarded to.
 E first()
          Returns the first (lowest) element currently in this set.
 SortedSet<E> headSet(E toElement)
          Returns a view of the portion of this set whose elements are strictly less than toElement.
 E last()
          Returns the last (highest) element currently in this set.
 SortedSet<E> subSet(E fromElement, E toElement)
          Returns a view of the portion of this set whose elements range from fromElement, inclusive, to toElement, exclusive.
 SortedSet<E> tailSet(E fromElement)
          Returns a view of the portion of this set whose elements are greater than or equal to fromElement.
 
Methods inherited from class com.google.common.collect.ForwardingSet
equals, hashCode
 
Methods inherited from class com.google.common.collect.ForwardingCollection
add, addAll, clear, contains, containsAll, isEmpty, iterator, remove, removeAll, retainAll, size, toArray, toArray
 
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, equals, hashCode, isEmpty, iterator, remove, removeAll, retainAll, size, toArray, toArray
 

Constructor Detail

ForwardingSortedSet

protected ForwardingSortedSet()
Constructor for use by subclasses.

Method Detail

delegate

protected abstract SortedSet<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 ForwardingSet<E>

comparator

public Comparator<? super E> comparator()
Description copied from interface: java.util.SortedSet
Returns the comparator used to order the elements in this set, or null if this set uses the natural ordering of its elements.

Specified by:
comparator in interface SortedSet<E>
Returns:
the comparator used to order the elements in this set, or null if this set uses the natural ordering of its elements

first

public E first()
Description copied from interface: java.util.SortedSet
Returns the first (lowest) element currently in this set.

Specified by:
first in interface SortedSet<E>
Returns:
the first (lowest) element currently in this set

headSet

public SortedSet<E> headSet(E toElement)
Description copied from interface: java.util.SortedSet
Returns a view of the portion of this set whose elements are strictly less than toElement. The returned set is backed by this set, so changes in the returned set are reflected in this set, and vice-versa. The returned set supports all optional set operations that this set supports.

The returned set will throw an IllegalArgumentException on an attempt to insert an element outside its range.

Specified by:
headSet in interface SortedSet<E>
Parameters:
toElement - high endpoint (exclusive) of the returned set
Returns:
a view of the portion of this set whose elements are strictly less than toElement

last

public E last()
Description copied from interface: java.util.SortedSet
Returns the last (highest) element currently in this set.

Specified by:
last in interface SortedSet<E>
Returns:
the last (highest) element currently in this set

subSet

public SortedSet<E> subSet(E fromElement,
                           E toElement)
Description copied from interface: java.util.SortedSet
Returns a view of the portion of this set whose elements range from fromElement, inclusive, to toElement, exclusive. (If fromElement and toElement are equal, the returned set is empty.) The returned set is backed by this set, so changes in the returned set are reflected in this set, and vice-versa. The returned set supports all optional set operations that this set supports.

The returned set will throw an IllegalArgumentException on an attempt to insert an element outside its range.

Specified by:
subSet in interface SortedSet<E>
Parameters:
fromElement - low endpoint (inclusive) of the returned set
toElement - high endpoint (exclusive) of the returned set
Returns:
a view of the portion of this set whose elements range from fromElement, inclusive, to toElement, exclusive

tailSet

public SortedSet<E> tailSet(E fromElement)
Description copied from interface: java.util.SortedSet
Returns a view of the portion of this set whose elements are greater than or equal to fromElement. The returned set is backed by this set, so changes in the returned set are reflected in this set, and vice-versa. The returned set supports all optional set operations that this set supports.

The returned set will throw an IllegalArgumentException on an attempt to insert an element outside its range.

Specified by:
tailSet in interface SortedSet<E>
Parameters:
fromElement - low endpoint (inclusive) of the returned set
Returns:
a view of the portion of this set whose elements are greater than or equal to fromElement
Overview  Package   Class  Use  Tree  Deprecated  Index  Help 
 PREV CLASS   NEXT CLASS FRAMES    NO FRAMES    
SUMMARY: NESTED | FIELD | CONSTR | METHOD DETAIL: FIELD | CONSTR | METHOD