org.apache.commons.collections.collection
Class TypedCollection
java.lang.Object
|
+--org.apache.commons.collections.collection.TypedCollection
- public class TypedCollection
- extends Object
Decorates a Collection
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: 1.2 $ $Date: 2004/01/14 21:43:18 $
- Author:
- Stephen Colebourne, Matthew Hawthorne
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
TypedCollection
protected TypedCollection()
- Restrictive constructor.
decorate
public static Collection decorate(Collection coll,
Class type)
- Factory method to create a typed collection.
If there are any elements already in the collection being decorated, they
are validated.
- Parameters:
coll
- the collection to decorate, must not be nulltype
- the type to allow into the collection, must not be null- Throws:
IllegalArgumentException
- if collection or type is nullIllegalArgumentException
- if the collection contains invalid elements
Copyright © 2001-2004 Apache Software Foundation. All Rights Reserved.