public class TypedCollection extends Object
Collection
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 |
TypedCollection()
Restrictive constructor.
|
Modifier and Type | Method and Description |
---|---|
static Collection |
decorate(Collection coll,
Class type)
Factory method to create a typed collection.
|
public static Collection decorate(Collection coll, Class type)
If there are any elements already in the collection being decorated, they are validated.
coll
- the collection to decorate, must not be nulltype
- the type to allow into the collection, must not be nullIllegalArgumentException
- if collection or type is nullIllegalArgumentException
- if the collection contains invalid elementsCopyright © 2001–2015 The Apache Software Foundation. All rights reserved.