code: public RelationshipsType<EjbJarType<T>> getOrCreateRelationships()
     {
        Node node = childNode.getOrCreate("relationships");
        RelationshipsType<EjbJarType<T>> relationships = new RelationshipsTypeImpl<EjbJarType<T>>(this, "relationships", childNode, node);
        return relationships;
     }
docs: If not already created, a new <code>relationships</code> element with the given value will be created.
  Otherwise, the existing <code>relationships</code> element will be returned.
  @return  a new or existing instance of <code>RelationshipsType<EjbJarType<T>></code>