/**
* Unsubscribe to a topic
*
* @param topicId
* @return
*/
public boolean unsubscribe(EventTopic et) {
if (!eventTopicIds.contains(et.getId())) {
return false;
}
eventTopicIds.remove(et.getId());
// et.subscribersCount--;
update();
return true;
}
/**
* Subscribe to a topic
*
* @param et
* @return
*/
public boolean subscribe(EventTopic et) {
if (eventTopicIds.contains(et.getId())) {
return false;
}
eventTopicIds.add(et.getId());
Collections.sort(eventTopicIds);
et.subscribersCount++;
update();
return true;
}