org.apache.tapestry5.func
Class Mapper<S,T>

java.lang.Object
  org.apache.tapestry5.func.Mapper<S,T>

public abstract class Mapper<S,T>
extends java.lang.Object

Base class used with Flow.map(Mapper) to define how Flow values are mapped from one type to another (or otherwise transformed).

Since:

5.2.0

Constructor Summary

Mapper()

Method Summary

<X> Mapper<S,X>	combine(Mapper<T,X> other) Combines this mapper (S -->T) with another mapper (T -->X) to form a composite mapper (S --> X).
abstract T	map(S value) Implemented in subclasses to map a source value to a target value.

Methods inherited from class java.lang.Object

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

Constructor Detail

Mapper

public Mapper()

Method Detail

map

public abstract T map(S value)

Implemented in subclasses to map a source value to a target value.

combine

public final <X> Mapper<S,X> combine(Mapper<T,X> other)

Combines this mapper (S -->T) with another mapper (T -->X) to form a composite mapper (S --> X).