rerout connect old node connect node deleg rerout xxx possibl edg diagram associ depend gener link todo probabl superclass fig diagram type param node node end drag param old node exist node connect param edg edg drag rerout param sourc tell end rerout overrid chang connect node object node object old node object edg sourc model facad associ edg rerout associ node old node edg sourc model facad gener edg rerout gener node old node edg sourc model facad depend edg rerout depend node old node edg sourc model facad link edg rerout link node old node edg sourc 