org.uqbar.arena.bindings

Interface Transformer<M,V>

Type Parameters:

M - El tipo de los valores que maneja el modelo.

V - El tipo de los valores que maneja la vista.

All Known Implementing Classes:

AbstractReadOnlyTransformer, DateAdapter, NotEmptyTransformer, NotNullTransformer

public interface Transformer<M,V>

Converts and validates values coming from the view to the type and/or format needed in the model, and viceversa.

Author:

npasserini

Method Summary

Methods

Modifier and Type	Method and Description
Class<M>	getModelType() Returns the class of the values in the model side.
Class<V>	getViewType() Returns the class of the values in the view side.
V	modelToView(M valueFromModel) Convert and/or validate a value coming from the model to the type and/or format needed in the view.
M	viewToModel(V valueFromView) Convert and/or validate a value coming from the view to the type and/or format needed in the model.

Method Detail

viewToModel

M viewToModel(V valueFromView)

Convert and/or validate a value coming from the view to the type and/or format needed in the model.

Parameters:

valueFromView - A value coming from de view

Returns:

The (validated) value to be sent to the model

Throws:

org.uqbar.commons.model.UserException - Si hay un error que se debe mostrar al usuario.

RuntimeException - Si hay cualquier otro tipo de error, interno al programa.

modelToView

V modelToView(M valueFromModel)

Convert and/or validate a value coming from the model to the type and/or format needed in the view.

Parameters:

valueFromModel - A value coming from the model

Returns:

The value to be sent to the view.

Throws:

org.uqbar.commons.model.UserException - Si hay un error que se debe mostrar al usuario.

RuntimeException - Si hay cualquier otro tipo de error, interno al programa.

getModelType

Class<M> getModelType()

Returns the class of the values in the model side.

getViewType

Class<V> getViewType()

Returns the class of the values in the view side.