org.apache.commons.collections.map

Class TypedSortedMap


public class TypedSortedMap
extends Object

Decorates another SortedMap to validate that elements added are of a specific type.

The validation of additions is performed via an instanceof test against a specified Class. If an object cannot be added to the collection, an IllegalArgumentException is thrown.

Note that TypedSortedMap is not synchronized and is not thread-safe. If you wish to use this map from multiple threads concurrently, you must use appropriate synchronization. The simplest approach is to wrap this map using Collections.synchronizedSortedMap. This class may throw exceptions when accessed by concurrent threads without synchronization.

The returned implementation is Serializable from Commons Collections 3.1.

Version:
$Revision: 348007 $ $Date: 2005-11-21 22:52:57 +0000 (Mon, 21 Nov 2005) $
Authors:
Stephen Colebourne
Matthew Hawthorne
Since:
Commons Collections 3.0

Constructor Summary

TypedSortedMap()
Restrictive constructor.

Method Summary

static SortedMap
decorate(SortedMap map, Class keyType, Class valueType)
Factory method to create a typed sorted map.

Constructor Details

TypedSortedMap

protected TypedSortedMap()
Restrictive constructor.

Method Details

decorate

public static SortedMap decorate(SortedMap map,
                                 Class keyType,
                                 Class valueType)
Factory method to create a typed sorted map.

If there are any elements already in the map being decorated, they are validated.

Parameters:
map - the map to decorate, must not be null
keyType - the type to allow as keys, must not be null
valueType - the type to allow as values, must not be null

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