org.modelio.vcore.smkernel.mapi.services

Class MetamodelExtensionPoint<S>

java.lang.Object

org.modelio.vcore.smkernel.mapi.services.MetamodelExtensionPoint<S>

Type Parameters:

S - the service interface

All Implemented Interfaces:

IMetamodelServiceProvider<S>

public class MetamodelExtensionPoint<S>
extends java.lang.Object
implements IMetamodelServiceProvider<S>

Metamodel related service registry.

Allows registering and querying the metamodel for additional services (audit checkers, label provider, ...)

Since:

3.6

Author:

cmarin

Constructor Summary

Constructors

Constructor and Description
MetamodelExtensionPoint()

Method Summary

Modifier and Type	Method and Description
S	findService(MClass cls) Find a service for the given metaclass.
S	getService(MMetamodelFragment metamodelFragment) Get a service for the given metamodel fragment.
void	registerExtension(S service, java.lang.Class<? extends MMetamodelFragment> metamodelFragmentClass) Register a metamodel extension.
void	unregisterExtension(java.lang.Class<? extends MMetamodelFragment> metamodelFragmentClass) Remove a metamodel service provider.

Methods inherited from class java.lang.Object

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

Constructor Detail

MetamodelExtensionPoint

public MetamodelExtensionPoint()

Method Detail

getService

public S getService(MMetamodelFragment metamodelFragment)

Get a service for the given metamodel fragment.

Will return null if no matching service provider was registered for the metamodel fragment.

Specified by:

getService in interface IMetamodelServiceProvider<S>

Parameters:

metamodelFragment - the metamodel fragment

Returns:

the found service or null.

registerExtension

public void registerExtension(S service,
                              java.lang.Class<? extends MMetamodelFragment> metamodelFragmentClass)

Register a metamodel extension.

Parameters:

service - the implemented service.

metamodelFragmentClass - the supported metamodel fragment class.

unregisterExtension

public void unregisterExtension(java.lang.Class<? extends MMetamodelFragment> metamodelFragmentClass)

Remove a metamodel service provider.

Parameters:

metamodelFragmentClass - the metamodel fragment class to forget.

findService

public S findService(MClass cls)

Find a service for the given metaclass.

Look for a service for the metaclass origin metamodel fragment. If none is found lookup in the metaclass parent hierarchy for metaclasses from other metamodel fragments.

Will return null if no matching service provider was found.

Specified by:

findService in interface IMetamodelServiceProvider<S>

Parameters:

cls - a metaclass

Returns:

the found service or null.