templat method call argo uml framework result chang model element method directli overrid subclass order redisplai fig chang model element fig listen method guarante framework run swing awt thread param event uml chang event caus chang updat layout uml chang event event event owner event sourc properti arrai list properti contain event properti event attribut chang event todo doe fail chang associationend pass arrai list properti contain event properti event properti todo realli need notat provid set text 