com.opensymphony.xwork2.inject.util

Interface Function<F,T>

public interface Function<F,T>

A Function provides a transformation on an object and returns the resulting object. For example, a StringToIntegerFunction may implement Function<String,Integer> and transform integers in String format to Integer format.

The transformation on the source object does not necessarily result in an object of a different type. For example, a FarenheitToCelciusFunction may implement Function<Float,Float>.

Implementors of Function which may cause side effects upon evaluation are strongly encouraged to state this fact clearly in their API documentation.

Method Summary

Methods

Modifier and Type	Method and Description
T	apply(F from) Applies the function to an object of type F, resulting in an object of type T.

Method Detail

apply

T apply(F from)

Applies the function to an object of type F, resulting in an object of type T. Note that types F and T may or may not be the same.

Parameters:

from - The source object.

Returns:

The resulting object.