package org.xtext.example.mydsl.validation;

import org.eclipse.emf.ecore.EClass;
import org.eclipse.xtext.validation.NamesAreUniqueValidationHelper;
import org.xtext.example.mydsl.myDsl.MyDslPackage;

public class MyDslNamesAreUniqueValidationHelper extends
		NamesAreUniqueValidationHelper {

	@Override
	protected EClass getAssociatedClusterType(EClass eClass) {
		if (MyDslPackage.Literals.GREETING == eClass) return null;
		return super.getAssociatedClusterType(eClass);
	}
	
}

public class MyDslRuntimeModule extends  AbstractMyDslRuntimeModule {
	
	public Class<? extends INamesAreUniqueValidationHelper> bindNamesAreUniqueValidationHelper() {
		return MyDslNamesAreUniqueValidationHelper.class;
	}

}

public class CdalfNamesAreUniqueValidationHelper extends NamesAreUniqueValidationHelper {

	@Override
	protected EClass getAssociatedClusterType(EClass eClass) {

		if (eClass.getInstanceClass() == de.mydsl.Operation.class || eClass.getInstanceTypeName().equals("de.mydsl.Operation") )
		{
			return null;
		}

		return super.getAssociatedClusterType(eClass);
	}
}

Model:
	elements+=Element*;
	
Element:
	AElement | BElement;
	
AElement: 
	"a" name=ID
;	

BElement:
	"b" name=ID
;

public class MyDslNamesAreUniqueValidationHelper extends
		NamesAreUniqueValidationHelper {
	@Override
	protected EClass getAssociatedClusterType(EClass eClass) {
		if (MyDslPackage.Literals.AELEMENT == eClass) {
			return null;
		}
		return super.getAssociatedClusterType(eClass);
	}
}

public class MyDslRuntimeModule extends org.xtext.example.mydsl1.AbstractMyDslRuntimeModule {

	public Class<? extends NamesAreUniqueValidationHelper> bindNamesAreUniqueValidationHelper() {
		return MyDslNamesAreUniqueValidationHelper.class;
	}
	
}

 @ComposedChecks(validators=NamesAreUniqueValidator)
class MyDslValidator extends AbstractMyDslValidator {

}