org.apache.commons.collections.functors
Class FactoryTransformer

java.lang.Object
  org.apache.commons.collections.functors.FactoryTransformer

All Implemented Interfaces:

java.io.Serializable, Transformer

public class FactoryTransformer
extends java.lang.Object
implements Transformer, java.io.Serializable

Transformer implementation that calls a Factory and returns the result.

Since:

Commons Collections 3.0

Version:

$Revision: 646777 $ $Date: 2008-04-10 13:33:15 +0100 (Thu, 10 Apr 2008) $

Author:

Stephen Colebourne

See Also:

Serialized Form

Constructor Summary

FactoryTransformer(Factory factory)
Constructor that performs no validation.

Method Summary

Factory	getFactory() Gets the factory.
static Transformer	getInstance(Factory factory) Factory method that performs validation.
java.lang.Object	transform(java.lang.Object input) Transforms the input by ignoring the input and returning the result of calling the decorated factory.

Methods inherited from class java.lang.Object

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

Constructor Detail

FactoryTransformer

public FactoryTransformer(Factory factory)

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

Parameters:

factory - the factory to call, not null

Method Detail

getInstance

public static Transformer getInstance(Factory factory)

Factory method that performs validation.

Parameters:

factory - the factory to call, not null

Returns:

the factory transformer

Throws:

java.lang.IllegalArgumentException - if the factory is null

transform

public java.lang.Object transform(java.lang.Object input)

Transforms the input by ignoring the input and returning the result of calling the decorated factory.

Specified by:

transform in interface Transformer

Parameters:

input - the input object to transform

Returns:

the transformed result

getFactory

public Factory getFactory()

Gets the factory.

Returns:

the factory

Since:

Commons Collections 3.1