org.apache.commons.collections.set

Class TypedSet

public class TypedSet extends 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.

Since: Commons Collections 3.0

Version: $Revision: 155406 $ $Date: 2005-02-26 12:55:26 +0000 (Sat, 26 Feb 2005) $

Author: Stephen Colebourne Matthew Hawthorne

Constructor Summary
protected TypedSet()
Restrictive constructor.
Method Summary
static Setdecorate(Set set, Class type)
Factory method to create a typed set.

Constructor Detail

TypedSet

protected TypedSet()
Restrictive constructor.

Method Detail

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

Throws: IllegalArgumentException if set or type is null IllegalArgumentException if the set contains invalid elements

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