public class TypedBag extends Object
Bag
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.
Modifier | Constructor and Description |
---|---|
protected |
TypedBag()
Restrictive constructor.
|
public static Bag decorate(Bag bag, Class type)
If there are any elements already in the bag being decorated, they are validated.
bag
- the bag to decorate, must not be nulltype
- the type to allow into the bag, must not be nullIllegalArgumentException
- if bag or type is nullIllegalArgumentException
- if the bag contains invalid elementsCopyright © 2001–2015 The Apache Software Foundation. All rights reserved.