org.apache.commons.functor.generator.util
Class CollectionTransformer<E>

java.lang.Object
  org.apache.commons.functor.generator.util.CollectionTransformer<E>

Type Parameters:

E - the type of elements held in the adapted collection.

All Implemented Interfaces:

Functor, UnaryFunction<Generator<? extends E>,Collection<? super E>>, UnaryFunctor<Generator<? extends E>>

public class CollectionTransformer<E>
extends Object
implements UnaryFunction<Generator<? extends E>,Collection<? super E>>

Transforms a generator into a collection. If a collection is not passed into the constructor an ArrayList will be returned from the transform method.

Since:

1.0

Version:

$Revision: 1160793 $ $Date: 2011-08-23 18:48:32 +0200 (Tue, 23 Aug 2011) $

Author:

Jason Horman (jason@jhorman.org)

Constructor Summary

CollectionTransformer()
Create a new CollectionTransformer.

CollectionTransformer(Collection<? super E> toFill)
Create a new CollectionTransformer.

Method Summary

Collection<E>

evaluate(Generator<? extends E> generator) Evaluate this function.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.commons.functor.Functor

equals, hashCode, toString

Constructor Detail

CollectionTransformer

public CollectionTransformer()

Create a new CollectionTransformer.

CollectionTransformer

public CollectionTransformer(Collection<? super E> toFill)

Create a new CollectionTransformer.

Parameters:

toFill - Collection to fill

Method Detail

evaluate

public Collection<E> evaluate(Generator<? extends E> generator)

Evaluate this function.

Specified by:

evaluate in interface UnaryFunction<Generator<? extends E>,Collection<? super E>>

Parameters:

generator - the A object to evaluate

Returns:

the T result of this evaluation