org.apache.commons.collections4.functors

Class FactoryTransformer<I,O>

java.lang.Object

org.apache.commons.collections4.functors.FactoryTransformer<I,O>

All Implemented Interfaces:

java.io.Serializable, Transformer<I,O>

public class FactoryTransformer<I,O>
extends java.lang.Object
implements Transformer<I,O>, java.io.Serializable

Transformer implementation that calls a Factory and returns the result.

Since:

3.0

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
FactoryTransformer(Factory<? extends O> factory) Constructor that performs no validation.

Method Summary

Modifier and Type	Method and Description
static <I,O> Transformer<I,O>	factoryTransformer(Factory<? extends O> factory) Factory method that performs validation.
Factory<? extends O>	getFactory() Gets the factory.
O	transform(I input) Transforms the input by ignoring the input and returning the result of calling the decorated factory.

Methods inherited from class java.lang.Object

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

Constructor Detail

FactoryTransformer

public FactoryTransformer(Factory<? extends O> factory)

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

Parameters:

factory - the factory to call, not null

Method Detail

factoryTransformer

public static <I,O> Transformer<I,O> factoryTransformer(Factory<? extends O> factory)

Factory method that performs validation.

Type Parameters:

I - the input type

O - the output type

Parameters:

factory - the factory to call, not null

Returns:

the factory transformer

Throws:

java.lang.NullPointerException - if the factory is null

transform

public O transform(I input)

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

Specified by:

transform in interface Transformer<I,O>

Parameters:

input - the input object to transform

Returns:

the transformed result

getFactory

public Factory<? extends O> getFactory()

Gets the factory.

Returns:

the factory

Since:

3.1