org.apache.commons.collections.functors
Class TransformerClosure<I,O>

java.lang.Object
  org.apache.commons.collections.functors.TransformerClosure<I,O>

All Implemented Interfaces:

Serializable, Closure<I>

public class TransformerClosure<I,O>
extends Object
implements Closure<I>, Serializable

Closure implementation that calls a Transformer using the input object and ignore the result.

Since:

Commons Collections 3.0

Version:

$Revision: 1.1.1.1 $ $Date: 2005/05/23 04:34:40 $

Author:

Matt Hall, John Watkinson, Stephen Colebourne

See Also:

Serialized Form

Constructor Summary

TransformerClosure(Transformer<? super I,O> transformer)
Constructor that performs no validation.

Method Summary

void	execute(I input) Executes the closure by calling the decorated transformer.
static <I,O> Closure<I>	getInstance(Transformer<? super I,O> transformer) Factory method that performs validation.
Transformer<? super I,O>	getTransformer() Gets the transformer.

Methods inherited from class java.lang.Object

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

Constructor Detail

TransformerClosure

public TransformerClosure(Transformer<? super I,O> transformer)

Constructor that performs no validation. Use getInstance if you want that.

Parameters:

transformer - the transformer to call, not null

Method Detail

getInstance

public static <I,O> Closure<I> getInstance(Transformer<? super I,O> transformer)

Factory method that performs validation.

A null transformer will return the NOPClosure.

Parameters:

transformer - the transformer to call, null means nop

Returns:

the transformer closure

execute

public void execute(I input)

Executes the closure by calling the decorated transformer.

Specified by:

execute in interface Closure<I>

Parameters:

input - the input object

getTransformer

public Transformer<? super I,O> getTransformer()

Gets the transformer.

Returns:

the transformer

Since:

Commons Collections 3.1