org.apache.commons.collections.map
Class TypedMap
java.lang.Object
|
+--org.apache.commons.collections.map.TypedMap
- public class TypedMap
- extends Object
Decorates another Map
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.
- Since:
- Commons Collections 3.0
- Version:
- $Revision: 1.3 $ $Date: 2004/01/14 21:43:11 $
- Author:
- Stephen Colebourne, Matthew Hawthorne
Constructor Summary |
protected |
TypedMap()
Restrictive constructor. |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
TypedMap
protected TypedMap()
- Restrictive constructor.
decorate
public static Map decorate(Map map,
Class keyType,
Class valueType)
- Factory method to create a typed map.
If there are any elements already in the map being decorated, they
are validated.
- Parameters:
map
- the map to decorate, must not be nullkeyType
- the type to allow as keys, must not be nullvalueType
- the type to allow as values, must not be null- Throws:
IllegalArgumentException
- if list or type is nullIllegalArgumentException
- if the list contains invalid elements
Copyright © 2001-2004 Apache Software Foundation. All Rights Reserved.