org.eclipse.emfforms.spi.swt.core

Interface EMFFormsRendererService<VELEMENT extends VElement>

Type Parameters:

VELEMENT -

All Known Implementing Classes:

DIViewSWTRendererService, EMFFormsDIExtensionRendererFactory, EMFFormsDIRendererFactory, LegacyRendererService

public interface EMFFormsRendererService<VELEMENT extends VElement>

The EMFFormsRendererService encapsulates the tester and the access to the AbstractSWTRenderer.

Author:

Eugen Neufeld

Field Summary

Fields

Modifier and Type	Field and Description
static double	NOT_APPLICABLE Constant for isApplicable(VElement, ViewModelContext) to indicate, that the EMFFormsRendererService cannot provide a fitting renderer for the provided VElement.

Method Summary

Modifier and Type	Method and Description
AbstractSWTRenderer<VELEMENT>	getRendererInstance(VELEMENT vElement, ViewModelContext viewModelContext) Returns a renderer.
double	isApplicable(VElement vElement, ViewModelContext viewModelContext) Check whether the provided VElement can be rendered by the AbstractSWTRenderer provided by getRendererInstance(VElement, ViewModelContext).

Field Detail

NOT_APPLICABLE

static final double NOT_APPLICABLE

Constant for isApplicable(VElement, ViewModelContext) to indicate, that the EMFFormsRendererService cannot provide a fitting renderer for the provided VElement.

See Also:

Constant Field Values

Method Detail

isApplicable

double isApplicable(VElement vElement,
                    ViewModelContext viewModelContext)

Check whether the provided VElement can be rendered by the AbstractSWTRenderer provided by getRendererInstance(VElement, ViewModelContext).

Parameters:

vElement - The VElement to check

viewModelContext - The ViewModelContext to use for the renderer instance

Returns:

NOT_APPLICABLE if the renderer doesn't fit, a positive value otherwise

getRendererInstance

AbstractSWTRenderer<VELEMENT> getRendererInstance(VELEMENT vElement,
                                                  ViewModelContext viewModelContext)

Returns a renderer.

Parameters:

vElement - The VElement to create the renderer instance for

viewModelContext - The ViewModelContext to use for the renderer instance

Returns:

The AbstractSWTRenderer