public void testRemovesListenerAfterLastListenerIsRemoved() throws Exception {
ListChangeEventTracker listener = new ListChangeEventTracker();
list.addListChangeListener(listener);
assertTrue(bean.changeSupport.hasListeners(propertyName));
list.removeListChangeListener(listener);
assertFalse(bean.changeSupport.hasListeners(propertyName));
}
private void removed(E input) {
listeners.elementRemoved(input);
IObservableList<E> observable = elementToObservable.remove(input);
if (observable != null) {
observable.removeListChangeListener(listChangeListener);
for (E element : observable) {
removed(element);
}
observable.dispose();
}
}
/** @param list */
private void setInput(IObservableList list) {
if (list == null) {
list = new WritableList(SWTObservables.getRealm(Display.getDefault()));
}
if (observableList != null) {
observableList.removeListChangeListener(listener);
}
knownElements.clear();
observableList = list;
knownElements.addAll(list);
observableList.addListChangeListener(listener);
}
public void dispose() {
observableList.removeListChangeListener(listener);
}
