Package org.apache.commons.collections.buffer

Class TypedBuffer

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 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
      Throws:
      IllegalArgumentException - if buffer or type is null
      IllegalArgumentException - if the buffer contains invalid elements