builder.java

来自「《Java与模式》一书的源代码」· Java 代码 · 共 38 行

package com.javapatterns.builder.messagebuilder;

import java.util.Date;

public abstract class Builder
{
    protected AutoMessage msg;

    public Builder()
    {
    }

    public abstract void buildSubject();

    public abstract void buildBody();

    public void sendMessage()
    {
        msg.send();
    }

    public void buildFrom(String from)
    {
        msg.setFrom(from);
    }

    public void buildTo(String to)
    {
        System.out.println(to);
        msg.setTo(to);
    }

    public void buildSendDate()
    {
        msg.setSendDate(new Date());
    }
}