public boolean save() {
	try {
	    ObjectOutputStream oos = new ObjectOutputStream(
		    new FileOutputStream(getDbFileName()));
	    oos.writeObject(this);
	    oos.close();
	    return true;
	} catch (IOException ex) {
	    ex.printStackTrace();
	    return false;
	}
    }

    public boolean load() {
	try {
	    ObjectInputStream oos = new ObjectInputStream(new FileInputStream(
		    getDbFileName()));
	    Object obj = oos.readObject();
	    BaseList<T> l = this.getClass().cast(obj);
	    this.list = l.getList();
	    this.nextId = l.nextId;
	    oos.close();
	    return true;
	} catch (IOException ex) {
	    ex.printStackTrace();
	} catch (ClassNotFoundException e) {
	    e.printStackTrace();
	}
	return false;
    }