org.apache.commons.collections.list
Class TypedList
java.lang.Object
|
+--org.apache.commons.collections.list.TypedList
public class TypedList
extends java.lang.Object
Decorates another
List
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.
- Commons Collections 3.0
- Stephen Colebourne
- Matthew Hawthorne
static List | decorate(List list, Class type) |
TypedList
protected TypedList()
Restrictive constructor.
decorate
public static List decorate(List list, Class type)
Factory method to create a typed list.
If there are any elements already in the list being decorated, they
are validated.
- list - the list to decorate, must not be null
- type - the type to allow into the collection, must not be null
- if list or type is null
- if the list contains invalid elements
List
to validate that elements added are of a specific type. The validation of additions is performed via an instanceof test against a specifiedClass
. If an object cannot be added to the collection, an IllegalArgumentException is thrown.