org.eclipse.emf.ecp.view.model.provider.xmi

Class ExtensionXMIViewModelProvider

java.lang.Object

org.eclipse.emf.ecp.view.model.provider.xmi.ExtensionXMIViewModelProvider

All Implemented Interfaces:

IFilteredViewProvider, IViewProvider

public class ExtensionXMIViewModelProvider
extends Object
implements IFilteredViewProvider

An IViewProvider which loads view models from extension points.

Author:

Jonas Helming

Field Summary

Fields inherited from interface org.eclipse.emf.ecp.view.spi.provider.IViewProvider

NOT_APPLICABLE

Constructor Summary

Constructors

Constructor and Description
ExtensionXMIViewModelProvider()

Method Summary

Modifier and Type	Method and Description
double	canProvideViewModel(org.eclipse.emf.ecore.EObject eObject, VViewModelProperties properties, Collection<String> requiredKeys) Queries the confidence with which I can provide a view model for the given domain model object where some keys in the properties are required to be matched in an implementation-specific way by the view models the I have access to.
VView	provideViewModel(org.eclipse.emf.ecore.EObject eObject, VViewModelProperties properties, Collection<String> requiredKeys) Obtains the view model that I can provide for the given domain model object.

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.provider.IFilteredViewProvider

canProvideViewModel, provideViewModel

Constructor Detail

ExtensionXMIViewModelProvider

public ExtensionXMIViewModelProvider()

Method Detail

canProvideViewModel

public double canProvideViewModel(org.eclipse.emf.ecore.EObject eObject,
                                  VViewModelProperties properties,
                                  Collection<String> requiredKeys)

Description copied from interface: IFilteredViewProvider

Queries the confidence with which I can provide a view model for the given domain model object where some keys in the properties are required to be matched in an implementation-specific way by the view models the I have access to.

Specified by:

canProvideViewModel in interface IFilteredViewProvider

Parameters:

eObject - the domain model object for which a view is to be requested

properties - the properties for providing the view, that may or may not include matching filters

requiredKeys - a subset (possibly empty) of the keys in the properties that must be matched by any view model that I would provide. If any of these keys does not match a view model, then that view model must not be provided. Otherwise, it may just be less preferred than some other view model that does match

Returns:

a positive double indicating how well I am suited to provide a VView for the given object, or IViewProvider.NOT_APPLICABLE if I cannot provide a view model

provideViewModel

public VView provideViewModel(org.eclipse.emf.ecore.EObject eObject,
                              VViewModelProperties properties,
                              Collection<String> requiredKeys)

Description copied from interface: IFilteredViewProvider

Obtains the view model that I can provide for the given domain model object. This method is only called if a previous invocation of IFilteredViewProvider.canProvideViewModel(EObject, VViewModelProperties, Collection) with the same arguments returned the highest positive result amongst all available providers.

Specified by:

provideViewModel in interface IFilteredViewProvider

Parameters:

eObject - the domain model object for which a view is to be requested

properties - the properties for providing the view, that may or may not include matching filters

requiredKeys - a subset (possibly empty) of the keys in the properties that must be matched by any view model that I would provide. If any of these keys does not match a view model, then that view model must not be provided. Otherwise, it may just be less preferred than some other view model that does match

Returns:

the view model