public void setID(long roomID) {
        this.roomID = roomID;
    }
Sets a new room ID if the room has just been saved to the database or sets the saved ID of
the room in the database while loading the room.

@param roomID the saved ID of the room in the DB or a new one if the room is being saved to the DB.
xmppserver/src/main/java/org/jivesoftware/openfire/muc/MUCRoom.java