net.sf.molae.pipe.union
Class Extendable.ExtendableTransformer<T>

java.lang.Object
  net.sf.molae.pipe.union.Extendable.ExtendableTransformer<T>

All Implemented Interfaces:

TwoWayTransformer<T,Extendable<T>>

Enclosing class:

Extendable<T>

protected static class Extendable.ExtendableTransformer<T>
extends Object
implements TwoWayTransformer<T,Extendable<T>>

A transformer that returns a new extendable of the input value.

Constructor Summary

protected

Extendable.ExtendableTransformer()

Method Summary

boolean	isRetrievable(Extendable<T> input) Indicates if the origin of the specified object can be calculated.
T	retransform(Extendable<T> input) Retrieves the base value of the given extendable
Extendable<T>	transform(T base) Creates a new extendable of the input value.

Methods inherited from class java.lang.Object

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

Constructor Detail

Extendable.ExtendableTransformer

protected Extendable.ExtendableTransformer()

Method Detail

transform

public Extendable<T> transform(T base)

Creates a new extendable of the input value.

Specified by:

transform in interface TwoWayTransformer<T,Extendable<T>>

Parameters:

base - the base value of the new extendable

Returns:

a transformed object

retransform

public T retransform(Extendable<T> input)

Retrieves the base value of the given extendable

Specified by:

retransform in interface TwoWayTransformer<T,Extendable<T>>

Parameters:

input - an extendable object

Returns:

the base value of the given extendable

isRetrievable

public boolean isRetrievable(Extendable<T> input)

Description copied from interface: TwoWayTransformer

Indicates if the origin of the specified object can be calculated. This requires that:

1. retransform is implemented for this object and does not throw an exception.
2. The object x returned by retransform is unique, or more formally: transform(o1).equals(transform(o2)) &rArr o1.equals(o2)

This implies that

 retransform(transform(input)).equals(input)
 

for all objects where the retransformation is defined.

Specified by:

isRetrievable in interface TwoWayTransformer<T,Extendable<T>>

Parameters:

input - an extendable object

Returns:

true if the extendable is of the base type