} else if (de instanceof DataMapDisplayEvent) {
DataMapDisplayEvent dmde = (DataMapDisplayEvent) de;
dmde.setDataMapChanged(true);
fireDataMapDisplayEvent(dmde);
} else if (de instanceof DataNodeDisplayEvent) {
DataNodeDisplayEvent dnde = (DataNodeDisplayEvent) de;
dnde.setDataNodeChanged(true);
fireDataNodeDisplayEvent(dnde);
} else if (de instanceof DomainDisplayEvent) {
DomainDisplayEvent dde = (DomainDisplayEvent) de;
dde.setDomainChanged(true);
fireDomainDisplayEvent(dde);