org.apache.commons.collections.buffer
Class TypedBuffer

java.lang.Object
  |
  +--org.apache.commons.collections.buffer.TypedBuffer

public class TypedBuffer

extends java.lang.Object

Decorates another Buffer 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: 1.2 $ $Date: 2004/01/14 21:43:08 $

Author:

Stephen Colebourne, Matthew Hawthorne

Method Summary

static Buffer

decorate(Buffer buffer, java.lang.Class type) Factory method to create a typed list.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

decorate

public static Buffer decorate(Buffer buffer,
                              java.lang.Class type)

Factory method to create a typed list.

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

Parameters:

buffer - the buffer to decorate, must not be null

type - the type to allow into the buffer, must not be null

Throws:

java.lang.IllegalArgumentException - if buffer or type is null

java.lang.IllegalArgumentException - if the buffer contains invalid elements