org.uncommons.watchmaker.framework.interactive
Class RendererAdapter<T,S>

java.lang.Object
  org.uncommons.watchmaker.framework.interactive.RendererAdapter<T,S>

Type Parameters:

T - The input type for the renderer.

S - The output type for the renderer.

All Implemented Interfaces:

Renderer<T,S>

public class RendererAdapter<T,S>
extends Object
implements Renderer<T,S>

Adapter class for chaining together two renderers in series to provide flexibility. For example, if we have a Long -> Date renderer that turns a number of milliseconds since epoch into a Java date, and a Date -> String renderer that converts a Java date into its String representation in a particular locale, we can combine the two to create a Long -> String renderer without having to write a separate implementation of the Renderer interface.

Author:

Daniel Dyer

Constructor Summary

RendererAdapter(Renderer<T,? extends R> renderer1, Renderer<R,S> renderer2)
Creates an adapter that feeds the output of renderer1 into renderer2.

Method Summary

S	render(T entity) Renders an object of one type as an instance of another.

Methods inherited from class java.lang.Object

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

Constructor Detail

RendererAdapter

public RendererAdapter(Renderer<T,? extends R> renderer1,
                       Renderer<R,S> renderer2)

Creates an adapter that feeds the output of renderer1 into renderer2.

Type Parameters:

R - The intermediate type when transforming objects of type T to objects of type S.

Parameters:

renderer1 - A renderer that will translate an object of the input type (T) into an object of the intermediate type (R).

renderer2 - A renderer that will translate an object of the intermediate type (R) into an object of the output type (S).

Method Detail

render

public S render(T entity)

Renders an object of one type as an instance of another. For example, if the generic types of this renderer are Date and String, this method would return a String representation of a Date.

Specified by:

render in interface Renderer<T,S>

Parameters:

entity - An object to render as a different type.

Returns:

A rendering of the parameter.