@Override protected java.util.Collection<?> getComboBoxObjects ( final Object object ) { final SourceItem sourceItem = (SourceItem)object; if ( sourceItem.eContainer () instanceof EquinoxApplication ) { final EquinoxApplication app = (EquinoxApplication)sourceItem.eContainer (); return app.getConnections (); } else { return super.getComboBoxObjects ( object ); } }; } );