null.java

邮件服务器系统 支持SMTP POP3 是著名的Apache写 有一定的参考价值

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 * Copyright (c) 2000-2004 The Apache Software Foundation.             *
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 * Licensed under the Apache License, Version 2.0 (the "License"); you *
 * may not use this file except in compliance with the License. You    *
 * may obtain a copy of the License at:                                *
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 *     http://www.apache.org/licenses/LICENSE-2.0                      *
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package org.apache.james.transport.mailets;

import org.apache.mailet.GenericMailet;
import org.apache.mailet.Mail;

/**
 * Simplest Mailet which destroys any incoming messages.
 *
 */
public class Null extends GenericMailet {

    /**
     * Set this mail to GHOST state, indicating that no further processing 
     * should take place.
     *
     * @param mail the mail to process
     */
    public void service(Mail mail) {
        mail.setState(Mail.GHOST);
    }

    /**
     * Return a string describing this mailet.
     *
     * @return a string describing this mailet
     */
    public String getMailetInfo() {
        return "Null Mailet";
    }
}