member.java

来自「This temp directory is used by the JVM f」· Java 代码 · 共 109 行

/*
 * $Header: /home/cvs/jakarta-tomcat-catalina/modules/cluster/src/share/org/apache/catalina/cluster/Member.java,v 1.2 2003/11/16 22:22:45 fhanik Exp $
 * $Revision: 1.2 $
 * $Date: 2003/11/16 22:22:45 $
 *
 * ====================================================================
 *
 * The Apache Software License, Version 1.1
 *
 * Copyright (c) 1999 The Apache Software Foundation.  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
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 *    distribution.
 *
 * 3. The end-user documentation included with the redistribution, if
 *    any, must include the following acknowlegement:
 *       "This product includes software developed by the
 *        Apache Software Foundation (http://www.apache.org/)."
 *    Alternately, this acknowlegement may appear in the software itself,
 *    if and wherever such third-party acknowlegements normally appear.
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 * 4. The names "The Jakarta Project", "Tomcat", and "Apache Software
 *    Foundation" must not be used to endorse or promote products derived
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 * 5. Products derived from this software may not be called "Apache"
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 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
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 * <http://www.apache.org/>.
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 * [Additional notices, if required by prior licensing conditions]
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 */

package org.apache.catalina.cluster;

/**
 * The Member interface, defines a member in the Cluster.
 * A member is a Tomcat process that participates in session replication.<BR>
 * Each member can carry a set of properties, defined by the actual implementation.<BR>
 * For TCP replication has been targeted for the first release, the hostname and listen port
 * of the member is defined as hardcoded stuff.<BR>
 * The Member interface together with MembershipListener, MembershipService are interfaces used to
 * switch out the service used to establish membership in between the cluster nodes.
 *
 * @author Filip Hanik
 * @version $Revision: 1.2 $, $Date: 2003/11/16 22:22:45 $
 */


public interface Member {
    /**
     * Return implementation specific properties about this cluster node.
     * @return
     */
    public java.util.HashMap getMemberProperties();
    /**
     * Returns the name of this node, should be unique within the cluster.
     * @return
     */
    public String getName();
    /**
     * Returns the TCP listen host for the TCP implementation
     * @return
     */
    public String getHost();
    /**
     * Returns the TCP listen portfor the TCP implementation
     * @return
     */
    public int getPort();

    /**
     * Contains information on how long this member has been online.
     * The result is the number of milli seconds this member has been
     * broadcasting its membership to the cluster.
     * @return nr of milliseconds since this member started.
     */
    public long getMemberAliveTime();
}