org.eclipse.emf.ecp.view.spi.provider
Interface IViewProvider

All Known Implementing Classes:

ExtensionXMIViewModelProvider, ViewProvider, XMIViewModelProvider

public interface IViewProvider

This interface defines a generic way to provide a VView. First the can render method is called. The provider with the highest priority is then asked to generate(EObject, Map) a VView.

Since:

1.2

Author:

Eugen Neufeld

Field Summary

static int

NOT_APPLICABLE Constant indicating, that the provider cannot provide a VView for a specific EObject.

Method Summary

int	canRender(org.eclipse.emf.ecore.EObject eObject, Map<String,Object> context) Called to check whether the provider can provide a VView for an EObject.
VView	generate(org.eclipse.emf.ecore.EObject eObject, Map<String,Object> context) This method is only called if canRender(EObject, Map) returned the highest positive number of all IViewProviders.

Field Detail

NOT_APPLICABLE

static final int NOT_APPLICABLE

Constant indicating, that the provider cannot provide a VView for a specific EObject.

See Also:

Constant Field Values

Method Detail

canRender

int canRender(org.eclipse.emf.ecore.EObject eObject,
              Map<String,Object> context)

Called to check whether the provider can provide a VView for an EObject.

Parameters:

eObject - the EObject to create a

context - a key-value-map from String to Object

Returns:

an integer indicating how well this provider is fitted to provide a VView for the provided EObject or NOT_APPLICABLE if it doesn't fit

generate

VView generate(org.eclipse.emf.ecore.EObject eObject,
               Map<String,Object> context)

This method is only called if canRender(EObject, Map) returned the highest positive number of all IViewProviders. It must then return a VView to the EObject.

Parameters:

eObject - the EObject to generate the VView for

context - a key-value-map from String to Object

Returns:

the generated VView