org.apache.commons.collections.map
Class AbstractSortedMapDecorator
java.lang.Object
org.apache.commons.collections.map.AbstractMapDecorator
org.apache.commons.collections.map.AbstractSortedMapDecorator
- All Implemented Interfaces:
- Map, SortedMap
- Direct Known Subclasses:
- DualTreeBidiMap.ViewMap, FixedSizeSortedMap, UnmodifiableSortedMap
public abstract class AbstractSortedMapDecorator
- extends AbstractMapDecorator
- implements SortedMap
Provides a base decorator that enables additional functionality to be added
to a Map via decoration.
Methods are forwarded directly to the decorated map.
This implementation does not perform any special processing with the map views.
Instead it simply returns the set/collection from the wrapped map. This may be
undesirable, for example if you are trying to write a validating implementation
it would provide a loophole around the validation.
But, you might want that loophole, so this class is kept simple.
- Since:
- Commons Collections 3.0
- Version:
- $Revision: 155406 $ $Date: 2005-02-26 12:55:26 +0000 (Sat, 26 Feb 2005) $
- Author:
- Stephen Colebourne
Nested classes/interfaces inherited from interface java.util.Map |
Map.Entry<K,V> |
Methods inherited from class org.apache.commons.collections.map.AbstractMapDecorator |
clear, containsKey, containsValue, entrySet, equals, get, getMap, hashCode, isEmpty, keySet, put, putAll, remove, size, toString, values |
Methods inherited from interface java.util.Map |
clear, containsKey, containsValue, equals, get, hashCode, isEmpty, put, putAll, remove, size |
AbstractSortedMapDecorator
protected AbstractSortedMapDecorator()
- Constructor only used in deserialization, do not use otherwise.
- Since:
- Commons Collections 3.1
AbstractSortedMapDecorator
public AbstractSortedMapDecorator(SortedMap map)
- Constructor that wraps (not copies).
- Parameters:
map
- the map to decorate, must not be null
- Throws:
IllegalArgumentException
- if the collection is null
getSortedMap
protected SortedMap getSortedMap()
- Gets the map being decorated.
- Returns:
- the decorated map
comparator
public Comparator comparator()
- Specified by:
comparator
in interface SortedMap
firstKey
public Object firstKey()
- Specified by:
firstKey
in interface SortedMap
headMap
public SortedMap headMap(Object toKey)
- Specified by:
headMap
in interface SortedMap
lastKey
public Object lastKey()
- Specified by:
lastKey
in interface SortedMap
subMap
public SortedMap subMap(Object fromKey,
Object toKey)
- Specified by:
subMap
in interface SortedMap
tailMap
public SortedMap tailMap(Object fromKey)
- Specified by:
tailMap
in interface SortedMap
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