DataBindingProcessor (Metawidget API Documentation)

java.lang.Object
- org.metawidget.swt.widgetprocessor.binding.databinding.DataBindingProcessor

All Implemented Interfaces:

Immutable, AdvancedWidgetProcessor<org.eclipse.swt.widgets.Control,SwtMetawidget>, WidgetProcessor<org.eclipse.swt.widgets.Control,SwtMetawidget>
```
public class DataBindingProcessor
extends Object
implements AdvancedWidgetProcessor<org.eclipse.swt.widgets.Control,SwtMetawidget>
```
Property binding implementation based on eclipse.core.databinding.
This implementation does not require JFace. JFace is separate from eclipse.core.databinding, as discussed here https://bugs.eclipse.org/bugs/show_bug.cgi?id=153630.

Note: eclipse.core.databinding does not bind actions, such as invoking a method when a Button is pressed. For that, see ReflectionBindingProcessor and MetawidgetActionStyle.

Author:

Richard Kennard

Constructor Summary

Constructors
Constructor and Description

DataBindingProcessor()

DataBindingProcessor(DataBindingProcessorConfig config)

Constructors
Constructor and Description
`DataBindingProcessor()`
`DataBindingProcessor(DataBindingProcessorConfig config)`

Method Summary

Methods
Modifier and Type	Method and Description
`Object`	`convertFromString(String value, Class<?> expectedType)`
`void`	`onEndBuild(SwtMetawidget metawidget)` Event called at the end of widget building, after all widgets have been built and added to the `Layout`.
`void`	`onStartBuild(SwtMetawidget metawidget)` Event called at the start of the widget building process, before the `WidgetBuilder` is called.
`org.eclipse.swt.widgets.Control`	`processWidget(org.eclipse.swt.widgets.Control control, String elementName, Map<String,String> attributes, SwtMetawidget metawidget)` Process the given widget.
`void`	`save(SwtMetawidget metawidget)`

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

- Constructor Detail
  - DataBindingProcessor
```
public DataBindingProcessor()
```
  - DataBindingProcessor
```
public DataBindingProcessor(DataBindingProcessorConfig config)
```
- Method Detail
  - onStartBuild
```
public void onStartBuild(SwtMetawidget metawidget)
```
    Description copied from interface: AdvancedWidgetProcessor
    
    Event called at the start of the widget building process, before the WidgetBuilder is called. WidgetProcessors may wish to act on this event to initialize themselves ready for processing. This event is only called once per inspection, not once per widget built.
    
    Specified by:
    
    onStartBuild in interface AdvancedWidgetProcessor<org.eclipse.swt.widgets.Control,SwtMetawidget>
    
    Parameters:
    metawidget - the parent Metawidget. Never null
  - processWidget
```
public org.eclipse.swt.widgets.Control processWidget(org.eclipse.swt.widgets.Control control,
                                            String elementName,
                                            Map<String,String> attributes,
                                            SwtMetawidget 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<org.eclipse.swt.widgets.Control,SwtMetawidget>
    
    Parameters:
    control - 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)
  - convertFromString
```
public Object convertFromString(String value,
                       Class<?> expectedType)
```
  - onEndBuild
```
public void onEndBuild(SwtMetawidget metawidget)
```
    Description copied from interface: AdvancedWidgetProcessor
    
    Event called at the end of widget building, after all widgets have been built and added to the Layout. WidgetProcessors may wish to act on this event to clean themselves up after processing. This event is only called once per inspection, not once per widget built.
    
    Specified by:
    
    onEndBuild in interface AdvancedWidgetProcessor<org.eclipse.swt.widgets.Control,SwtMetawidget>
    
    Parameters:
    metawidget - the parent Metawidget. Never null
  - save
```
public void save(SwtMetawidget metawidget)
```

Class DataBindingProcessor

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

DataBindingProcessor

DataBindingProcessor

Method Detail

onStartBuild

processWidget

convertFromString

onEndBuild

save