org.apache.commons.collections.map
Class TransformedSortedMap
- Map, Serializable, SortedMap
public class TransformedSortedMap
implements SortedMap
Decorates another
SortedMap
to transform objects that are added.
The Map put methods and Map.Entry setValue method 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.
$Revision: 1.6 $ $Date: 2004/04/09 10:36:01 $
clear , containsKey , containsValue , entrySet , equals , get , getMap , hashCode , isEmpty , keySet , put , putAll , remove , size , toString , values |
TransformedSortedMap
protected TransformedSortedMap(SortedMap map,
Transformer keyTransformer,
Transformer valueTransformer)
Constructor that wraps (not copies).
If there are any elements already in the collection being decorated, they
are NOT transformed.
map
- the map to decorate, must not be nullkeyTransformer
- the predicate to validate the keys, null means no transformationvalueTransformer
- the predicate to validate to values, null means no transformation
comparator
public Comparator comparator()
decorate
public static SortedMap decorate(SortedMap map,
Transformer keyTransformer,
Transformer valueTransformer)
Factory method to create a transforming sorted map.
If there are any elements already in the map being decorated, they
are NOT transformed.
map
- the map to decorate, must not be nullkeyTransformer
- the predicate to validate the keys, null means no transformationvalueTransformer
- the predicate to validate to values, null means no transformation
firstKey
public Object firstKey()
getSortedMap
protected SortedMap getSortedMap()
Gets the map being decorated.
headMap
public SortedMap headMap(Object toKey)
lastKey
public Object lastKey()
subMap
public SortedMap subMap(Object fromKey,
Object toKey)
tailMap
public SortedMap tailMap(Object fromKey)
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