@WebMethod(operationName = "changeCommentByID")
    public String changeCommentByID(@WebParam(name = "id") int id, @WebParam(name = "newMessage") String newMessage) {
        List<Message> list = ejbRef.findAll();
        for (Message item : list){
            if (item instanceof Message){
                Message message = (Message) item;
                Integer messageID = message.getId();
                if(messageID.equals(id)){
                    item.setMessage(newMessage);
                    ejbRef.edit(item);
                }
            }
        }

        return "pakeista";
    }

    /**
     * Web service operation
     */
    @WebMethod(operationName = "getListFromIDToID")
    public String getListFromIDToID(@WebParam(name = "firstID") int firstID, @WebParam(name = "lastID") int lastID) {
        List<Message> list = ejbRef.findAll();
        String result = "";
        for (Message item : list){
            if (item instanceof Message){
                Message message = (Message) item;
                Integer messageID = message.getId();
                if(messageID >= firstID && messageID <= lastID){
                    result = result + messageID + " " + message.getMessage() + "\n";
                }
            }
        }
        return result;
    }