org.apache.wicket.markup.html.form
Interface IChoiceRenderer<T>

Type Parameters:

T - The model object type

All Superinterfaces:

IClusterable, Serializable

All Known Implementing Classes:

ChoiceRenderer, EnumChoiceRenderer

public interface IChoiceRenderer<T>
extends IClusterable

Renders one choice. Separates the 'id' values used for internal representation from 'display values' which are the values shown to the user of components that use this renderer.

Author:

jcompagner

Method Summary

Object	getDisplayValue(T object) Get the value for displaying to an end user.
String	getIdValue(T object, int index) This method is called to get the id value of an object (used as the value attribute of a choice element) The id can be extracted from the object like a primary key, or if the list is stable you could just return a toString of the index.

Method Detail

getDisplayValue

Object getDisplayValue(T object)

Get the value for displaying to an end user.

Parameters:

object - the actual object

Returns:

the value meant for displaying to an end user

getIdValue

String getIdValue(T object,
                  int index)

This method is called to get the id value of an object (used as the value attribute of a choice element) The id can be extracted from the object like a primary key, or if the list is stable you could just return a toString of the index.

Parameters:

object - The object for which the id should be generated

index - The index of the object in the choices list.

Returns:

String