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Implemementing an external interface in XCore [message #1752018]

Tue, 17 January 2017 21:22

Pierre Allard

Messages: 6
Registered: February 2016

Junior Member

Hi all,

I am trying to create an XCore model that defines classes that implement the java.util.Comparator interface for various types of EObject. Here is the model I created to try this out (attached to this post):

@GenModel(prefix="Tests",
childCreationExtenders="true",
extensibleProviderFactory="true",
multipleEditorPages="false")
@GenModel(modelDirectory="/test/src-generated")
@GenModel(editDirectory="/test.edit/src-generated")

package tests

type MyComparator<T> wraps java.util.Comparator

class SomeClassA
{
}

class SomeClassB
{
}

interface IComparator<T> wraps java.util.Comparator<T>
{
}

class MyAComparator extends IComparator<SomeClassA>
{
}

class MyBComparator extends IComparator<SomeClassB>
{
}

The problem I get is that the code generated does for the MyAComparator.java looks like this:

package tests;

import java.util.Comparator;

import org.eclipse.emf.ecore.EObject;

/**
* 
* A representation of the model object '<em><b>My AComparator</b></em>'.
* 
*
*
* @see tests.TestsPackage#getMyAComparator()
* @model superTypes="tests.IComparator<tests.SomeClassA>"
* @generated
*/
public interface MyAComparator extends EObject, Comparator<void><SomeClassA> {
} // MyAComparator

This obviously does not compile. The same problem with the MyBComparator.java. The adapter factory and switch interface have similar problems in the code.

What am I doing wrong ?