activ graph build activ graph object context context model element activ graph activ graph creat activ graph activ graph set context model element context context namespac activ graph set namespac namespac context context behavior featur activ graph set namespac behavior featur context owner state composit state model impl state machin factori build composit state state machin activ graph activ graph set activ graph illeg argument except creat activ graph context context 