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org.apache.commons.collections.bag

Class TypedSortedBag

public class TypedSortedBag
extends java.lang.Object
Decorates another SortedBag 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: 155406 $ $Date: 2005-02-26 12:55:26 +0000 (Sat, 26 Feb 2005) $
Authors:
Stephen Colebourne
Matthew Hawthorne
Since:
Commons Collections 3.0

Constructor Summary

TypedSortedBag()
Restrictive constructor.

Method Summary

static SortedBag
decorate(SortedBag bag, Class type)
Factory method to create a typed sorted bag.

Constructor Details

TypedSortedBag

protected TypedSortedBag()
Restrictive constructor.

Method Details

decorate

public static SortedBag decorate(SortedBag bag,
                                 Class type)
Factory method to create a typed sorted bag.

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

Parameters:
bag - the bag to decorate, must not be null
type - the type to allow into the bag, must not be null
Returns:
a new transformed SortedBag

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