Group.etl

@lazy 
rule Group
	transform s : source!Shape
	to t : target!Group {	
	guard : s.getType.value == 13	// GROUP
	
	t.name = s.name;	
	
	var children = s.`model`;
	if (not (children == null)) {
		for (e in children.elements) e.~features=s.~features;
		for (elem : source!ModelElement in children.elements) {
			var e = elem.equivalent();
			if(e.instanceOf(target!Relation)) {
				if(not(e==null)) t.getRelations().add(e);	
			} else {
				if(not(e==null)) t.getElements().add(e);
			}
		}
	}
	
}