code: public RelationshipRoleSourceType<EjbRelationshipRoleType<T>> getOrCreateRelationshipRoleSource()
     {
        Node node = childNode.getOrCreate("relationship-role-source");
        RelationshipRoleSourceType<EjbRelationshipRoleType<T>> relationshipRoleSource = new RelationshipRoleSourceTypeImpl<EjbRelationshipRoleType<T>>(this, "relationship-role-source", childNode, node);
        return relationshipRoleSource;
     }
docs: If not already created, a new <code>relationship-role-source</code> element with the given value will be created.
  Otherwise, the existing <code>relationship-role-source</code> element will be returned.
  @return  a new or existing instance of <code>RelationshipRoleSourceType<EjbRelationshipRoleType<T>></code>