transportadvertisement.java

JXTA&#8482 is a set of open, generalized peer-to-peer (P2P) protocols that allow any networked devi

/*
 * Copyright (c) 2001-2007 Sun Microsystems, Inc.  All rights reserved.
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 *  The Sun Project JXTA(TM) Software License
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 *     developed by Sun Microsystems, Inc. for JXTA(TM) technology." 
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 *  ====================================================================
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 *  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.
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 */

package net.jxta.protocol;


import net.jxta.document.ExtendableAdvertisement;
import net.jxta.id.ID;


/**
 * This abstract class defines a Transport advertisement. Each peer endpoint
 * protocol is associated with a transport advertisement that describes the
 * protocol and network interface associated with the endpoint transport. For
 * example for TCP endpoint. the following transport information needs to be
 * maintained for this endpoint:
 * <p/>
 * <p>Transport :
 * <ul type-disc>
 * <li><p>Protocol : TCP
 * <li><p>Port : 6001
 * <li><p>MulticastAddr : 224.0.1.85
 * <li><p>MulticastPort : 1234
 * <li><p>MulticastSize : 8192
 * </ul>
 * <p/>
 * <p>This class is an abstract class that needs to be extended by implementation
 * to support the different types of transport advertisements (TCP, HTTP, etc)
 * <p/>
 * <pre>
 * &lt;?xml version="1.0"?>
 *  &lt;TransportAdvertisement type="HTTPAdvertisement">
 *          ..........
 *  &lt;/TransportAdvertisement>
 * </pre>
 *
 * @see net.jxta.protocol.AccessPointAdvertisement
 */


public abstract class TransportAdvertisement extends ExtendableAdvertisement {

    protected String protocol = null;

    /**
     * Returns the identifying type of this Advertisement.
     *
     * @return String the type of advertisement
     */
    public static String getAdvertisementType() {
        return "jxta:TransportAdvertisement";
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public final String getBaseAdvType() {
        return getAdvertisementType();
    }

    /**
     * Return ID for indexing. We don't have one so return the nullID.
     *
     * @return jxta id associated with this advertisement.
     */
    @Override
    public ID getID() {
        return ID.nullID;
    }

    /**
     * Sets the URI scheme to be used for EndpointAddresses of this Message Transport.
     *
     * @return The URI scheme used for EndpointAddresses of this Message Transport.
     */
    public String getProtocol() {
        return protocol;
    }

    /**
     * Returns the URI scheme to be used for EndpointAddresses of this Message Transport.
     *
     * @param protocol The URI scheme used for EndpointAddresses of this Message Transport.
     */
    public void setProtocol(String protocol) {
        this.protocol = protocol;
    }
}