org.apache.commons.collections15.bag
Class TypedSortedBag<E>
java.lang.Object
org.apache.commons.collections15.bag.TypedSortedBag<E>
public class TypedSortedBag<E>
- extends 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.
- Since:
- Commons Collections 3.0
- Version:
- $Revision: 1.1 $ $Date: 2005/10/11 17:05:19 $
- Author:
- Stephen Colebourne, Matt Hall, John Watkinson, Matthew Hawthorne
Constructor Summary |
protected |
TypedSortedBag()
Restrictive constructor. |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
TypedSortedBag
protected TypedSortedBag()
- Restrictive constructor.
decorate
public static <E> SortedBag<E> decorate(SortedBag<E> bag,
Class<E> 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 nulltype
- the type to allow into the bag, must not be null
- Returns:
- a new transformed SortedBag
- Throws:
IllegalArgumentException
- if bag or type is null
IllegalArgumentException
- if the bag contains invalid elements
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