question: public void updateLabelling ( Label nodeLabel ) { for ( Iterator it = iterator ( ) ; it . hasNext ( ) ; ) { DirectedEdge de = ( DirectedEdge ) it . next ( ) ; Label label = de . getLabel ( ) ; label . setAllLocationsIfNull ( 0 , nodeLabel . getLocation ( 0 ) ) ; label . setAllLocationsIfNull ( 1 , nodeLabel . getLocation ( 1 ) ) ; } }
target:  Update incomplete dirEdge labels from the labelling for the node