RequiredProcessor (Metawidget API Documentation)

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java.lang.Object
- org.metawidget.vaadin.ui.widgetprocessor.RequiredProcessor

All Implemented Interfaces:

Immutable, WidgetProcessor<com.vaadin.ui.Component,VaadinMetawidget>
```
public class RequiredProcessor
extends Object
implements WidgetProcessor<com.vaadin.ui.Component,VaadinMetawidget>
```
WidgetProcessor that sets the 'required' property on a Vaadin Field.

Author:

Richard Kennard

Constructor Summary

Constructors
Constructor and Description

RequiredProcessor()

Method Summary

Methods
Modifier and Type	Method and Description
`com.vaadin.ui.Component`	`processWidget(com.vaadin.ui.Component component, String elementName, Map<String,String> attributes, VaadinMetawidget metawidget)` Process the given widget.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - RequiredProcessor
```
public RequiredProcessor()
```
- Method Detail
  - processWidget
```
public com.vaadin.ui.Component processWidget(com.vaadin.ui.Component component,
                                    String elementName,
                                    Map<String,String> attributes,
                                    VaadinMetawidget metawidget)
```
    Description copied from interface: WidgetProcessor
    
    Process the given widget. Called after a widget has been built by the WidgetBuilder, and before it is added to the Layout.
    
    Specified by:
    
    processWidget in interface WidgetProcessor<com.vaadin.ui.Component,VaadinMetawidget>
    
    Parameters:
    component - the widget to process. Never null
    elementName - XML node name of the business field. Typically 'entity', 'property' or 'action'. Never null
    attributes - attributes of the widget to process. Never null. This Map is modifiable - changes will be passed to subsequent WidgetProcessors and Layouts
    metawidget - the parent Metawidget. Never null
    
    Returns:
    generally the original widget (as passed in to the first argument). Can be a different widget if the WidgetProcessor wishes to substitute the original widget for another. Can be null if the WidgetProcessor wishes to cancel all further processing of this widget (including laying out)

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