public Long incrMaxSeq(MucRoom room) {
Lock lock = roomLockSet.getLock(room.getId());
try {
lock.lock();
room.setMaxSeq(room.getMaxSeq() + 1);
upadte(room);
return room.getMaxSeq();
} finally {
lock.unlock();
}
}
public void addOccupants(MucRoom room, Set<MucOccupant> occupants) {
Preconditions.checkArgument(room.getId() != null);
for (MucOccupant occupant : occupants) {
occupant.setRoom(room);
occupant.setId(null);
occupant.setReadSeq(room.getMaxSeq());
}
oDao.save(occupants);
}