Constructor Detail

• ReadOnlyWidgetBuilder

  public ReadOnlyWidgetBuilder()

Method Detail

• getValue

  public Object getValue(com.google.gwt.user.client.ui.Widget widget)

  Specified by:

  getValue in interface GwtValueAccessor

• setValue

  public boolean setValue(com.google.gwt.user.client.ui.Widget widget,
                 Object value)

  Description copied from interface: GwtValueAccessor
  Sets the given Widget to the specified value.

  Specified by:

  setValue in interface GwtValueAccessor

  Returns:

  true if the Widget was recognised and its value set

• buildWidget

  public com.google.gwt.user.client.ui.Widget buildWidget(String elementName,
                                                 Map<String,String> attributes,
                                                 GwtMetawidget metawidget)

  Description copied from interface: WidgetBuilder
  Builds the most appropriate widget for this business field.

  Specified by:

  buildWidget in interface WidgetBuilder<com.google.gwt.user.client.ui.Widget,GwtMetawidget>

  Parameters:

  elementName - XML node name of the business field. Typically 'entity', 'property' or 'action'. Never null

  attributes - attributes of the business field to build a widget for. Never null. This Map is modifiable - changes will be passed to subsequent WidgetBuilders, WidgetProcessors and Layouts

  metawidget - the parent Metawidget. Never null

  Returns:

  the built widget. To suppress a field, return a Stub. To defer to the next WidgetBuilder in the pipeline, return null. If there are no more WidgetBuilders in the pipeline, will create a nested Metawidget. This approach (return Stub for no field, null for nested Metawidget) as opposed to the other way around (return null for no field, return Metawidget for nested Metawidget) works better for those UI frameworks that cannot instatiate widgets without adding them to containers (eg. SWT)