org.apache.commons.collections.list
public class TypedList extends Object
List
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: 155406 $ $Date: 2005-02-26 12:55:26 +0000 (Sat, 26 Feb 2005) $
Constructor Summary | |
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protected | TypedList()
Restrictive constructor. |
Method Summary | |
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static List | decorate(List list, Class type)
Factory method to create a typed list.
|
If there are any elements already in the list being decorated, they are validated.
Parameters: list the list to decorate, must not be null type the type to allow into the collection, must not be null
Throws: IllegalArgumentException if list or type is null IllegalArgumentException if the list contains invalid elements