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java.lang.Objectorg.apache.commons.collections4.collection.AbstractCollectionDecorator<E>
org.apache.commons.collections4.collection.TransformedCollection<E>
org.apache.commons.collections4.list.TransformedList<E>
public class TransformedList<E>
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.
Nested Class Summary | |
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protected class |
TransformedList.TransformedListIterator
Inner class Iterator for the TransformedList |
Field Summary |
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Fields inherited from class org.apache.commons.collections4.collection.TransformedCollection |
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transformer |
Constructor Summary | |
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protected |
TransformedList(List<E> list,
Transformer<? super E,? extends E> transformer)
Constructor that wraps (not copies). |
Method Summary | ||
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void |
add(int index,
E object)
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boolean |
addAll(int index,
Collection<? extends E> coll)
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E |
get(int index)
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protected List<E> |
getList()
Gets the decorated list. |
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int |
indexOf(Object object)
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int |
lastIndexOf(Object object)
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ListIterator<E> |
listIterator()
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ListIterator<E> |
listIterator(int i)
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E |
remove(int index)
|
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E |
set(int index,
E object)
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List<E> |
subList(int fromIndex,
int toIndex)
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static
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transformedList(List<E> list,
Transformer<? super E,? extends E> transformer)
Factory method to create a transforming list that will transform existing contents of the specified list. |
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static
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transformingList(List<E> list,
Transformer<? super E,? extends E> transformer)
Factory method to create a transforming list. |
Methods inherited from class org.apache.commons.collections4.collection.TransformedCollection |
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add, addAll, transform, transform, transformedCollection, transformingCollection |
Methods inherited from class org.apache.commons.collections4.collection.AbstractCollectionDecorator |
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clear, contains, containsAll, decorated, equals, hashCode, isEmpty, iterator, remove, removeAll, retainAll, setCollection, size, toArray, toArray, toString |
Methods inherited from class java.lang.Object |
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clone, finalize, getClass, notify, notifyAll, wait, wait, wait |
Methods inherited from interface java.util.List |
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add, addAll, clear, contains, containsAll, equals, hashCode, isEmpty, iterator, remove, removeAll, retainAll, size, toArray, toArray |
Constructor Detail |
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protected TransformedList(List<E> list, Transformer<? super E,? extends E> transformer)
If there are any elements already in the list being decorated, they are NOT transformed.
list
- the list to decorate, must not be nulltransformer
- the transformer to use for conversion, must not be null
IllegalArgumentException
- if list or transformer is nullMethod Detail |
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public static <E> TransformedList<E> transformingList(List<E> list, Transformer<? super E,? extends E> transformer)
If there are any elements already in the list being decorated, they
are NOT transformed.
Contrast this with transformedList(List, Transformer)
.
E
- the type of the elements in the listlist
- the list to decorate, must not be nulltransformer
- the transformer to use for conversion, must not be null
IllegalArgumentException
- if list or transformer is nullpublic static <E> TransformedList<E> transformedList(List<E> list, Transformer<? super E,? extends E> transformer)
If there are any elements already in the list being decorated, they
will be transformed by this method.
Contrast this with transformingList(List, Transformer)
.
E
- the type of the elements in the listlist
- the list to decorate, must not be nulltransformer
- the transformer to use for conversion, must not be null
IllegalArgumentException
- if list or transformer is nullprotected List<E> getList()
public E get(int index)
get
in interface List<E>
public int indexOf(Object object)
indexOf
in interface List<E>
public int lastIndexOf(Object object)
lastIndexOf
in interface List<E>
public E remove(int index)
remove
in interface List<E>
public void add(int index, E object)
add
in interface List<E>
public boolean addAll(int index, Collection<? extends E> coll)
addAll
in interface List<E>
public ListIterator<E> listIterator()
listIterator
in interface List<E>
public ListIterator<E> listIterator(int i)
listIterator
in interface List<E>
public E set(int index, E object)
set
in interface List<E>
public List<E> subList(int fromIndex, int toIndex)
subList
in interface List<E>
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