fortunegeneratorimpl.java

来自「Java的面向对象数据库系统的源代码」· Java 代码 · 共 60 行

// You can redistribute this software and/or modify it under the terms of
// the Ozone Library License version 1 published by ozone-db.org.
//
// Copyright (C) 1997-@year@ by Per Nyfelt. All rights reserved.
//
// $Id: FortuneGeneratorImpl.java,v 1.2 2003/11/29 16:19:28 per_nyfelt Exp $
package db;

import java.util.*;

import org.ozoneDB.OzoneInterface;
import org.ozoneDB.OzoneObject;


public class FortuneGeneratorImpl extends OzoneObject implements FortuneGenerator {

    public static final long serialVersionUID = 1L;
    private List fortunes;
    Random randomizer;

    public static FortuneGenerator create(OzoneInterface db) {
        return (FortuneGenerator) db.createObject(FortuneGeneratorImpl.class,
                                                  OzoneInterface.Public,
                                                  FortuneGenerator.class.getName());
    }

    public FortuneGeneratorImpl() {
        init();
    }

    public String getFortune() {
        System.out.println("[FortuneGeneratorImpl] getting fortune");
        return (String) fortunes.get(randomizer.nextInt(fortunes.size()));
    }

    public void addFortune(String fortune) {
        System.out.println("[FortuneGeneratorImpl] adding fortune");
        fortunes.add(fortune);
    }

    public void removeFortunes() {
        System.out.println("[FortuneGeneratorImpl] removing fortunes");
        init();
    }

    public List getAllFortunes() {
        System.out.println("[FortuneGeneratorImpl] getting all fortunes");
        return fortunes;
    }

    private void init() {
        fortunes = new ArrayList();
        randomizer = new Random();
        fortunes.add("I like work ... I can sit and watch it for hours.");
        fortunes.add("Nihilism should commence with oneself.");
        fortunes.add("Ah say, son, you're about as sharp as a bowlin' ball.");
        fortunes.add("Yield to Temptation ... it may not pass your way again.");
    }
}