TypedBuffer (Commons Collections 3.2.2 API)

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

```
public class TypedBuffer
extends 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: 646777 $ $Date: 2008-04-10 14:33:15 +0200 (Thu, 10 Apr 2008) $

Author:

Stephen Colebourne, Matthew Hawthorne

- Constructor Summary
  
  Constructors
  Modifier Constructor Description
  
  protected TypedBuffer()
  Restrictive constructor.
- Method Summary
  
  All Methods Static Methods Concrete Methods
  Modifier and Type Method Description
  
  static Buffer decorate(Buffer buffer, Class type)
  Factory method to create a typed list.
  - Methods inherited from class java.lang.Object
    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - TypedBuffer
```
protected TypedBuffer()
```
    Restrictive constructor.
- Method Detail
  - 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
    
    Throws:
    
    IllegalArgumentException - if buffer or type is null
    
    IllegalArgumentException - if the buffer contains invalid elements