Module com.aoapps.collections.transformers

Package com.aoapps.collections.transformers

Class FunctionalTransformer<E,W>

java.lang.Object

com.aoapps.collections.transformers.AbstractTransformer<E,W>

com.aoapps.collections.transformers.FunctionalTransformer<E,W>

All Implemented Interfaces:

Transformer<E,W>

public class FunctionalTransformer<E,W>
extends AbstractTransformer<E,W>

A functional transformer performs bi-directional conversion via provided reciprocal functions.

TODO: Add a one-way transformer that uses a single function and does not support inversion (and would thus fail most/all modifications)? This would provide for a one-way wrapper behavior similar to other one-way wrapper-based transformers (such as Guava).

Author:

AO Industries, Inc.

Field Summary

Fields

Modifier and Type	Field	Description
protected final Function<? super W,? extends E>	fromWrapped
protected final Function<? super E,? extends W>	toWrapped

Fields inherited from class com.aoapps.collections.transformers.AbstractTransformer

eClass, inverted, wClass

Constructor Summary

Constructors

Constructor	Description
FunctionalTransformer(Class<E> eClass, Class<W> wClass, Function<? super E,? extends W> toWrapped, Function<? super W,? extends E> fromWrapped)	Creates a new bi-directional functional transformer.

Method Summary

Modifier and Type	Method	Description
E	fromWrapped(W w)
W	toWrapped(E e)

Methods inherited from class com.aoapps.collections.transformers.AbstractTransformer

invert, unbounded

Methods inherited from class java.lang.Object

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

Field Details

toWrapped

protected final Function<? super E,? extends W> toWrapped

fromWrapped

protected final Function<? super W,? extends E> fromWrapped

Constructor Details

FunctionalTransformer

public FunctionalTransformer(Class<E> eClass,
 Class<W> wClass,
 Function<? super E,? extends W> toWrapped,
 Function<? super W,? extends E> fromWrapped)

Creates a new bi-directional functional transformer.

Parameters:

eClass - The wrapper type

wClass - The wrapped type

toWrapped - Converts from wrapper to wrapped type

fromWrapped - Converts from wrapped to wrapper type

Method Details

toWrapped

public W toWrapped(E e)

Specified by:

toWrapped in interface Transformer<E,W>

Specified by:

toWrapped in class AbstractTransformer<E,W>

fromWrapped

public E fromWrapped(W w)

Specified by:

fromWrapped in interface Transformer<E,W>

Specified by:

fromWrapped in class AbstractTransformer<E,W>