javawebparts.core
Class CaseInsensitiveMap.KeySet

java.lang.Object
  |
  +--javawebparts.core.CaseInsensitiveMap.AbstractCollectionView
        |
        +--javawebparts.core.CaseInsensitiveMap.KeySet

All Implemented Interfaces:

java.util.Collection, java.util.Set

Enclosing class:

CaseInsensitiveMap

private class CaseInsensitiveMap.KeySet

extends CaseInsensitiveMap.AbstractCollectionView

implements java.util.Set

Private Set implementation used to return a set of the keys in the map.

See Also:

CaseInsensitiveMap.keySet()

Constructor Summary

private

CaseInsensitiveMap.KeySet()

Method Summary

boolean	add(java.lang.Object o) Adds the passed in element to this collection.
boolean	addAll(java.util.Collection c) Add all the elements found in the passed in collection to this collection.
void	clear() Remove all elements from this Set.
boolean	contains(java.lang.Object o) Returns true if the Collection contains the passed in object.
boolean	containsAll(java.util.Collection c) Returns true if this Set contains all the elements of the passed in Collection.
boolean	isEmpty() Returns true if the Collection doesn't contain any elements.
java.util.Iterator	iterator() Returns an Iterator that can be used to iterate on the Set.
boolean	remove(java.lang.Object o) Removes the passed in element from the Collection.
boolean	removeAll(java.util.Collection c) Removes all the elements from this Collection that are in the passed in Collection.
boolean	retainAll(java.util.Collection c) Retains in this Collection only the elements found in the passed in Collection.
int	size() Returns the number of elements in the Collection.
java.lang.Object[]	toArray() Returns an array containing a copy of all the elements found in this Collection.
java.lang.Object[]	toArray(java.lang.Object[] os) Returns an array of the passed in type, containing a copy of all the elements found in this Collection.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface java.util.Set

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

Constructor Detail

CaseInsensitiveMap.KeySet

private CaseInsensitiveMap.KeySet()

Method Detail

iterator

public java.util.Iterator iterator()

Returns an Iterator that can be used to iterate on the Set.

Specified by:

iterator in interface java.util.Set

Returns:

an Iterator that can be used to iterate on the Set.

size

public int size()

Returns the number of elements in the Collection.

Specified by:

size in interface java.util.Collection

Returns:

the number of elements in the Collection.

isEmpty

public boolean isEmpty()

Returns true if the Collection doesn't contain any elements.

Specified by:

isEmpty in interface java.util.Collection

Returns:

true if the Collection doesn't contain any elements.

contains

public boolean contains(java.lang.Object o)

Returns true if the Collection contains the passed in object.

Specified by:

contains in interface java.util.Collection

Parameters:

o - the Object to be checked for existence in this Collection

Returns:

true if the Colection contains the passed in object.

toArray

public java.lang.Object[] toArray()

Returns an array containing a copy of all the elements found in this Collection. The array isn't backed by the Collection, so it can be modified without affecting this Collection.

Specified by:

toArray in interface java.util.Collection

Returns:

an array containing a copy of all the elements found in this Collection.

See Also:

Collection.toArray()

toArray

public java.lang.Object[] toArray(java.lang.Object[] os)

Returns an array of the passed in type, containing a copy of all the elements found in this Collection. If the elements fit in the array passed in they will added to it, and the array will be returned. Otherwise a new array of the same type will be created, populated and returned. The array isn't backed by the Collection, so it can be modified without affecting this Collection.

Specified by:

toArray in interface java.util.Collection

Parameters:

os - an array that dictates the runtime-type of the array to be used.

Returns:

an array containing a copy of all the elements found in this Collection.

See Also:

Collection.toArray(Object[])

add

public boolean add(java.lang.Object o)

Adds the passed in element to this collection. This method is unsupported for this collection.

Specified by:

add in interface java.util.Collection

Parameters:

o - the Object to be added

Returns:

true if the set changed as the result of the call

Throws:

java.lang.UnsupportedOperationException - will always be thrown

addAll

public boolean addAll(java.util.Collection c)

Add all the elements found in the passed in collection to this collection. This operation is unsupported for this collection.

Specified by:

addAll in interface java.util.Collection

Parameters:

c - the collection of which elements should be added to this collection

Returns:

true if this Set changed as the result of this call

Throws:

java.lang.UnsupportedOperationException - will always be thrown

containsAll

public boolean containsAll(java.util.Collection c)

Returns true if this Set contains all the elements of the passed in Collection.

Specified by:

containsAll in interface java.util.Collection

Parameters:

c - a Collection of which elements should be checked

Returns:

true if this Set contains all the elements of the passed in Collection.

clear

public void clear()

Remove all elements from this Set.

Specified by:

clear in interface java.util.Collection

remove

public boolean remove(java.lang.Object o)

Removes the passed in element from the Collection.

Specified by:

remove in interface java.util.Collection

Parameters:

o - the element to be removed

Returns:

true if the Collection changed as the result of the call

removeAll

public boolean removeAll(java.util.Collection c)

Removes all the elements from this Collection that are in the passed in Collection.

Specified by:

removeAll in interface java.util.Collection

Parameters:

c - the Collection of which elements should be removed

Returns:

true if this Collection changed as the result of this call

retainAll

public boolean retainAll(java.util.Collection c)

Retains in this Collection only the elements found in the passed in Collection. In other words it deletes all the elements from this Collection, that are not in the passed in Collection.

Specified by:

retainAll in interface java.util.Collection

Parameters:

c - the Collection of which elements should be retained

Returns:

true if this Collection changed as the result of this call