public class TransformedSet<E> extends TransformedCollection<E> implements Set<E>
Set to transform objects that are added.
The add methods are affected by this class. Thus objects must be removed or searched for using their transformed form. For example, if the transformation converts Strings to Integers, you must use the Integer form to remove objects.
This class is Serializable from Commons Collections 3.1.
transformer| Modifier | Constructor and Description |
|---|---|
protected |
TransformedSet(Set<E> set,
Transformer<? super E,? extends E> transformer)
Constructor that wraps (not copies).
|
| Modifier and Type | Method and Description |
|---|---|
static <E> Set<E> |
transformedSet(Set<E> set,
Transformer<? super E,? extends E> transformer)
Factory method to create a transforming set that will transform
existing contents of the specified set.
|
static <E> TransformedSet<E> |
transformingSet(Set<E> set,
Transformer<? super E,? extends E> transformer)
Factory method to create a transforming set.
|
add, addAll, transform, transform, transformedCollection, transformingCollectionclear, contains, containsAll, decorated, equals, hashCode, isEmpty, iterator, remove, removeAll, retainAll, setCollection, size, toArray, toArray, toStringprotected TransformedSet(Set<E> set, Transformer<? super E,? extends E> transformer)
If there are any elements already in the set being decorated, they are NOT transformed.
set - the set to decorate, must not be nulltransformer - the transformer to use for conversion, must not be nullIllegalArgumentException - if set or transformer is nullpublic static <E> TransformedSet<E> transformingSet(Set<E> set, Transformer<? super E,? extends E> transformer)
If there are any elements already in the set being decorated, they
are NOT transformed.
Contrast this with transformedSet(Set, Transformer).
E - the element typeset - the set to decorate, must not be nulltransformer - the transformer to use for conversion, must not be nullIllegalArgumentException - if set or transformer is nullpublic static <E> Set<E> transformedSet(Set<E> set, Transformer<? super E,? extends E> transformer)
If there are any elements already in the set being decorated, they
will be transformed by this method.
Contrast this with transformingSet(Set, Transformer).
E - the element typeset - the set to decorate, must not be nulltransformer - the transformer to use for conversion, must not be nullIllegalArgumentException - if set or transformer is nullCopyright © 2001–2013 The Apache Software Foundation. All rights reserved.