@Override
public boolean isDeletableBy(User user) {
if (user != null && user.isAdmin()) return true;
return containsAdmin(user);
}
@Override
public void onUpdateSystemMessage(GwtConversation conversation, SystemMessage systemMessage) {
User user = conversation.getSession().getUser();
if (user == null || user.isAdmin() == false) throw new PermissionDeniedException();
webApplication.updateSystemMessage(systemMessage);
}
@Override
public boolean isVisibleFor(User user) {
return (user != null && user.isAdmin()) || containsParticipant(user) || containsAdmin(user);
}
