publicaddress.java

jxta_src_2.41b jxta 2.41b 最新版源码 from www.jxta.org

/*
 *  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 disclaimer 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: PublicAddress.java,v 1.8 2005/12/14 02:13:42 gonzo Exp $
 */
package net.jxta.ext.config;

/**
 * Public {@link net.jxta.ext.config.Address} implementation.
 *
 * <p>An {@link net.jxta.ext.config.Address} which facilitates the externally (aka publicly)
 * accessible address with respect to other, not necessarily all, JXTA Peer
 * instances. This address can vary from the actual physical address, which is
 * common for NAT (Name Address Translation) managed networks.
 *
 *@author     james todd [gonzo at jxta dot org]
 */

public class PublicAddress
extends Address {

    private boolean isExclusive = false;

    /**
     * Default configurator.
     */
    
    public PublicAddress() {
        this(null);
    }
    
    /**
     * Copy constructor.
     *
     * @param       pa      specified PublicAddress
     */
    
    public PublicAddress(PublicAddress pa) {
        super(pa);
      
        setExclusive(pa != null ? pa.isExclusive() : false);
    }

    /**
     * Accessor to the exclusive attribute.
     *
     * <p>Indicates the PublicAddress is exclusive.
     *
     * @return          is exclusive indicator
     */
    
    public boolean isExclusive() {
        return this.isExclusive;
    }

    /**
     * Specifies the exclusive attribute.
     *
     * @param   isExclusive     exclusive specification
     */
    
    public void setExclusive(boolean isExclusive) {
        this.isExclusive = isExclusive;
    }

    /**
     * Equality comparator.
     *
     * @param       o       object comparator
     * @return              equality indicator
     */
    
    public boolean equals(Object o) {
        return (o instanceof PublicAddress &&
                super.equals(o) &&
                ((PublicAddress)o).isExclusive() == isExclusive());
    }
    
    /**
     * Accessor to the hashcode attribute.
     *
     * @return          hashcode value
     */
    
    public int hashCode() {
        return super.hashCode() ^ (isExclusive() ? 1 : 0);
    }
}