@Override
public void clear() {
final Collection<E> copy = Lists.newArrayList(delegate());
super.clear();
for (E element : copy) {
listener.removed(element);
}
}
@Override
public boolean remove(Object object) {
final boolean removed = super.remove(object);
if (removed) {
@SuppressWarnings("unchecked")
final E element = (E) object;
listener.removed(element);
}
return removed;
}
@Override
public boolean retainAll(Collection<?> elements) {
final Collection<E> copy = Lists.newArrayList(delegate());
// this leaves all elements in copy which will be deleted in our collection
copy.removeAll(elements);
final boolean retained = super.retainAll(elements);
for (E element : copy) {
listener.removed(element);
}
return retained;
}
