Package org.eclipse.emf.ecp.view.spi.swt.services

Class DefaultSelectionProviderService

java.lang.Object

org.eclipse.emf.ecp.view.spi.swt.services.DefaultSelectionProviderService

All Implemented Interfaces:

ViewModelService, ECPSelectionProviderService

public class DefaultSelectionProviderService
extends java.lang.Object
implements ECPSelectionProviderService

A selection provider service that simply delegates the selection provider API to the selection provider registered for the "top-most" element in the view model, where "top-most" is the first element in a depth-first traversal.

Since:

1.20

Constructor Summary

Constructors

Constructor	Description
DefaultSelectionProviderService()	Initializes me.

Method Summary

Modifier and Type	Method	Description
void	dispose()	Dispose.
int	getPriority()	Returns the priority for this view service.
org.eclipse.jface.viewers.ISelectionProvider	getSelectionProvider()	Obtain a selection provider that aggregates the selection in the view model context.
void	instantiate(ViewModelContext context)	Instantiate the view service.
void	registerSelectionProvider(VElement element, org.eclipse.jface.viewers.ISelectionProvider selectionProvider)	Register a selection provider for a given element.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.eclipse.emf.ecp.view.spi.swt.services.ECPSelectionProviderService

createMasterDetailSelectionProvider

Constructor Detail

DefaultSelectionProviderService

public DefaultSelectionProviderService()

Initializes me.

Method Detail

instantiate

public void instantiate(ViewModelContext context)

Description copied from interface: ViewModelService

Instantiate the view service.

Specified by:

instantiate in interface ViewModelService

Parameters:

context - the ViewModelContext

dispose

public void dispose()

Description copied from interface: ViewModelService

Dispose.

Specified by:

dispose in interface ViewModelService

getPriority

public int getPriority()

Description copied from interface: ViewModelService

Returns the priority for this view service.

Specified by:

getPriority in interface ViewModelService

Returns:

the priority

getSelectionProvider

public org.eclipse.jface.viewers.ISelectionProvider getSelectionProvider()

Description copied from interface: ECPSelectionProviderService

Obtain a selection provider that aggregates the selection in the view model context. This should be suitable for use as, for example, the selection provider of an Eclipse workbench part site. The selection provider is never null, but if there are no registered providers to which it can delegate, it may have no useful effect.

Specified by:

getSelectionProvider in interface ECPSelectionProviderService

Returns:

the selection provider

registerSelectionProvider

public void registerSelectionProvider(VElement element,
                                      org.eclipse.jface.viewers.ISelectionProvider selectionProvider)

Description copied from interface: ECPSelectionProviderService

Register a selection provider for a given element. The effect is undefined if the element already has a provider registered. It is probably a good practice that only the renderer of the element be responsible for registering a selection provider for it.

Specified by:

registerSelectionProvider in interface ECPSelectionProviderService

Parameters:

element - an element in the view model

selectionProvider - a selection provider to register for it