key.java

myjxta是用jxta开发的一个p2p通讯软件 有聊天 文件共享 视频3大功能 界面采用swing

/*
*  Copyright (c) 2001 Sun Microsystems, Inc.  All rights
*  reserved.
*
*  Redistribution and use in source and binary forms, with or without
*  modification, are permitted provided that the following conditions
*  are met:
*
*  1. Redistributions of source code must retain the above copyright
*  notice, this list of conditions and the following disclaimer.
*
*  2. Redistributions in binary form must reproduce the above copyright
*  notice, this list of conditions and the following discalimer in
*  the documentation and/or other materials provided with the
*  distribution.
*
*  3. The end-user documentation included with the redistribution,
*  if any, must include the following acknowledgment:
*  "This product includes software developed by the
*  Sun Microsystems, Inc. for Project JXTA."
*  Alternately, this acknowledgment may appear in the software itself,
*  if and wherever such third-party acknowledgments normally appear.
*
*  4. The names "Sun", "Sun Microsystems, Inc.", "JXTA" and "Project JXTA"
*  must not be used to endorse or promote products derived from this
*  software without prior written permission. For written
*  permission, please contact Project JXTA at http://www.jxta.org.
*
*  5. Products derived from this software may not be called "JXTA",
*  nor may "JXTA" appear in their name, without prior written
*  permission of Sun.
*
*  THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
*  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
*  OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
*  DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
*  ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
*  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
*  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
*  USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
*  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
*  OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
*  OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
*  SUCH DAMAGE.
*  ====================================================================
*
*  This software consists of voluntary contributions made by many
*  individuals on behalf of Project JXTA.  For more
*  information on Project JXTA, please see
*  <http://www.jxta.org/>.
*
*  This license is based on the BSD license adopted by the Apache Foundation.
*
*  $Id: Key.java,v 1.1 2004/12/20 06:14:54 gonzo Exp $
*/

package net.jxta.myjxta.misc.eliza;

/**
 *  Eliza key.
 *  A key has the key itself, a rank, and a list of decompositon rules.
 */
public class Key {
    /** The key itself */
    String key;
    /** The numerical rank */
    int rank;
    /** The list of decompositions */
    DecompList decomp;

    /**
     *  Initialize the key.
     */
    Key(String key, int rank, DecompList decomp) {
        this.key = key;
        this.rank = rank;
        this.decomp = decomp;
    }

    /**
     *  Another initialization for gotoKey.
     */
    Key() {
        key = null;
        rank = 0;
        decomp = null;
    }

    public void copy(Key k) {
        key = k.key();
        rank = k.rank();
        decomp = k.decomp();
    }

    /**
     *  Print the key and all under it.
     */
    public void print(int indent) {
        for (int i = 0; i < indent; i++) System.out.print(" ");
        System.out.println("key: " + key + " " + rank);
        decomp.print(indent+2);
    }

    /**
     *  Print the key and rank only, not the rest.
     */
    public void printKey(int indent) {
        for (int i = 0; i < indent; i++) System.out.print(" ");
        System.out.println("key: " + key + " " + rank);
    }

    /**
     *  Get the key value.
     */
    public String key() {
        return key;
    }

    /**
     *  Get the rank.
     */
    public int rank() {
        return rank;
    }

    /**
     *  Get the decomposition list.
     */
    public DecompList decomp() {
        return decomp;
    }
}