com.vaadin.addon.jpacontainer.fieldfactory
Class ListTranslator

java.lang.Object
  com.vaadin.data.util.AbstractProperty
      com.vaadin.addon.jpacontainer.fieldfactory.PropertyTranslator
          com.vaadin.addon.jpacontainer.fieldfactory.ListTranslator

All Implemented Interfaces:

com.vaadin.data.Property, com.vaadin.data.Property.ReadOnlyStatusChangeListener, com.vaadin.data.Property.ReadOnlyStatusChangeNotifier, com.vaadin.data.Property.ValueChangeListener, com.vaadin.data.Property.ValueChangeNotifier, com.vaadin.data.Property.Viewer, Serializable

public class ListTranslator
extends PropertyTranslator

Generic wrapper property that translates items (Set from Vaadin selects) to a property of type List. The list order is taken from the selects order of items.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class com.vaadin.data.util.AbstractProperty

com.vaadin.data.util.AbstractProperty.ReadOnlyStatusChangeEvent

Nested classes/interfaces inherited from interface com.vaadin.data.Property

com.vaadin.data.Property.Editor, com.vaadin.data.Property.ReadOnlyException, com.vaadin.data.Property.ReadOnlyStatusChangeListener, com.vaadin.data.Property.ReadOnlyStatusChangeNotifier, com.vaadin.data.Property.Transactional<T>, com.vaadin.data.Property.ValueChangeListener, com.vaadin.data.Property.ValueChangeNotifier, com.vaadin.data.Property.Viewer

Constructor Summary

ListTranslator(com.vaadin.ui.AbstractSelect select)

Method Summary

Object	translateFromDatasource(Object value) This method must be implemented to translate the value received from DataSource.
Object	translateToDatasource(Object formattedValue) This method is used by setValue() method to translate given value to be suitable for the datasource.

Methods inherited from class com.vaadin.addon.jpacontainer.fieldfactory.PropertyTranslator

getPropertyDataSource, getType, getValue, isReadOnly, readOnlyStatusChange, setPropertyDataSource, setReadOnly, setValue, toString, valueChange

Methods inherited from class com.vaadin.data.util.AbstractProperty

addListener, addListener, addReadOnlyStatusChangeListener, addValueChangeListener, fireReadOnlyStatusChange, fireValueChange, getListeners, removeListener, removeListener, removeReadOnlyStatusChangeListener, removeValueChangeListener

Methods inherited from class java.lang.Object

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

Constructor Detail

ListTranslator

public ListTranslator(com.vaadin.ui.AbstractSelect select)

Method Detail

translateFromDatasource

public Object translateFromDatasource(Object value)

Description copied from class: PropertyTranslator

This method must be implemented to translate the value received from DataSource.

Specified by:

translateFromDatasource in class PropertyTranslator

Parameters:

value - Value object got from the datasource. This is guaranteed to be non-null and of the type compatible with getType() of the datasource.

Returns:

translateToDatasource

public Object translateToDatasource(Object formattedValue)
                             throws Exception

Description copied from class: PropertyTranslator

This method is used by setValue() method to translate given value to be suitable for the datasource. The method is required to assure that translateToDatasource(translateFromDatasource(x)) equals x.

Specified by:

translateToDatasource in class PropertyTranslator

Returns:

Non-null value compatible with datasource.

Throws:

Exception - Any type of exception can be thrown to indicate that the conversion was not succesful.