org.apache.commons.collections.list
Class TransformedList
java.lang.Object
org.apache.commons.collections.collection.AbstractCollectionDecorator
org.apache.commons.collections.collection.AbstractSerializableCollectionDecorator
org.apache.commons.collections.collection.TransformedCollection
org.apache.commons.collections.list.TransformedList
- All Implemented Interfaces:
- Collection, List, Serializable
- public class TransformedList
- extends TransformedCollection
- implements List
Decorates another List
to transform objects that are added.
The add and set 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.
- Since:
- Commons Collections 3.0
- Version:
- $Revision: 1.5 $ $Date: 2004/06/03 22:02:13 $
- Author:
- Stephen Colebourne
- See Also:
- Serialized Form
Methods inherited from class org.apache.commons.collections.collection.AbstractCollectionDecorator |
clear, contains, containsAll, equals, getCollection, hashCode, isEmpty, iterator, remove, removeAll, retainAll, size, toArray, toArray, toString |
Methods inherited from interface java.util.List |
add, addAll, clear, contains, containsAll, equals, hashCode, isEmpty, iterator, remove, removeAll, retainAll, size, toArray, toArray |
TransformedList
protected TransformedList(List list,
Transformer transformer)
- Constructor that wraps (not copies).
If there are any elements already in the list being decorated, they
are NOT transformed.
- Parameters:
list
- the list to decorate, must not be nulltransformer
- the transformer to use for conversion, must not be null
- Throws:
IllegalArgumentException
- if list or transformer is null
decorate
public static List decorate(List list,
Transformer transformer)
- Factory method to create a transforming list.
If there are any elements already in the list being decorated, they
are NOT transformed.
- Parameters:
list
- the list to decorate, must not be nulltransformer
- the transformer to use for conversion, must not be null
- Throws:
IllegalArgumentException
- if list or transformer is null
getList
protected List getList()
- Gets the decorated list.
- Returns:
- the decorated list
get
public Object get(int index)
- Specified by:
get
in interface List
indexOf
public int indexOf(Object object)
- Specified by:
indexOf
in interface List
lastIndexOf
public int lastIndexOf(Object object)
- Specified by:
lastIndexOf
in interface List
remove
public Object remove(int index)
- Specified by:
remove
in interface List
add
public void add(int index,
Object object)
- Specified by:
add
in interface List
addAll
public boolean addAll(int index,
Collection coll)
- Specified by:
addAll
in interface List
listIterator
public ListIterator listIterator()
- Specified by:
listIterator
in interface List
listIterator
public ListIterator listIterator(int i)
- Specified by:
listIterator
in interface List
set
public Object set(int index,
Object object)
- Specified by:
set
in interface List
subList
public List subList(int fromIndex,
int toIndex)
- Specified by:
subList
in interface List
Copyright © 2001-2005 Apache Software Foundation. All Rights Reserved.