org.apache.commons.collections.buffer

Class 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.

Version:
$Revision: 1.5 $ $Date: 2004/05/15 12:33:23 $
Authors:
Stephen Colebourne
Matthew Hawthorne
Since:
Commons Collections 3.0

Constructor Summary

TypedBuffer()
Restrictive constructor.

Method Summary

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

Constructor Details

TypedBuffer

protected TypedBuffer()
Restrictive constructor.

Method Details

decorate

public static Buffer decorate(Buffer buffer,
                              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
Returns:
a new typed Buffer

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