subscribe listener to events . concode_field_sep Bag<EventListener> listeners concode_elem_sep boolean sortDirty concode_field_sep void process concode_elem_sep void dispatch concode_elem_sep T dispatch concode_elem_sep boolean canHandle concode_elem_sep ImmutableBag<EventListener> getRelevantListeners
void function ( EventListener arg0 ) { if ( ! listeners . contains ( arg0 ) ) { listeners . add ( arg0 ) ; sortDirty = true ; } }