org.apache.commons.collections.set

Class TypedSet


public class TypedSet
extends java.lang.Object

Decorates another Set 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.

Version:
$Revision: 1.4 $ $Date: 2004/05/07 23:28:38 $
Authors:
Stephen Colebourne
Matthew Hawthorne
Since:
Commons Collections 3.0

Constructor Summary

TypedSet()
Restrictive constructor.

Method Summary

static Set
decorate(Set set, Class type)
Factory method to create a typed set.

Constructor Details

TypedSet

protected TypedSet()
Restrictive constructor.

Method Details

decorate

public static Set decorate(Set set,
                           Class type)
Factory method to create a typed set.

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

Parameters:
set - the set to decorate, must not be null
type - the type to allow into the collection, must not be null

Copyright © 2001-2006 Apache Software Foundation. All Rights Reserved.