org.apache.commons.collections.functors

Class ClosureTransformer

public class ClosureTransformer extends Object implements Transformer, Serializable

Transformer implementation that calls a Closure using the input object and then returns the input.

Since: Commons Collections 3.0

Version: $Revision: 348444 $ $Date: 2005-11-23 14:06:56 +0000 (Wed, 23 Nov 2005) $

Author: Stephen Colebourne

Constructor Summary
	ClosureTransformer(Closure closure) Constructor that performs no validation.

Method Summary
Closure	getClosure() Gets the closure.
static Transformer	getInstance(Closure closure) Factory method that performs validation.
Object	transform(Object input) Transforms the input to result by executing a closure.

Constructor Detail

public ClosureTransformer(Closure closure)

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

Parameters: closure the closure to call, not null

public Closure getClosure()

Gets the closure.

Returns: the closure

Since: Commons Collections 3.1

public static Transformer getInstance(Closure closure)

Factory method that performs validation.

Parameters: closure the closure to call, not null

Returns: the closure transformer

Throws: IllegalArgumentException if the closure is null

public Object transform(Object input)

Transforms the input to result by executing a closure.

Parameters: input the input object to transform

Returns: the transformed result