org.jgroups.stack
Class GossipClient

java.lang.Object
  extended by org.jgroups.stack.GossipClient

public class GossipClient
extends java.lang.Object

Local stub for clients to access one (or more) GossipRouters. Will use proprietary protocol (using GossipData PDUs) based on TCP to connect to GossipRouter.

Requires JDK >= 1.3 due to the use of Timer.

Version:
$Id: GossipClient.java,v 1.16 2006/10/25 08:23:58 belaban Exp $
Author:
Bela Ban Oct 4 2001

Field Summary
protected  org.apache.commons.logging.Log log
           
 
Constructor Summary
GossipClient(IpAddress gossip_host, long expiry)
          Creates the GossipClient
GossipClient(java.util.Vector gossip_hosts, long expiry)
          Creates the GossipClient
 
Method Summary
 void addGossipRouter(IpAddress gossip_host)
          Adds a GossipRouter to be accessed.
 void destroy()
           
 java.util.List getMembers(java.lang.String group)
          Returns all members of a given group
 boolean isRefresherEnabled()
           
static void main(java.lang.String[] args)
           
 void register(java.lang.String group, Address mbr)
          Adds the member to the given group.
 void setRefresherEnabled(boolean refresher_enabled)
           
 void stop()
           
 void unregister(java.lang.String group, Address mbr)
           
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

log

protected final org.apache.commons.logging.Log log
Constructor Detail

GossipClient

public GossipClient(IpAddress gossip_host,
                    long expiry)
Creates the GossipClient

Parameters:
gossip_host - The address and port of the host on which the GossipRouter is running
expiry - Interval (in msecs) for the refresher task

GossipClient

public GossipClient(java.util.Vector gossip_hosts,
                    long expiry)
Creates the GossipClient

Parameters:
gossip_hosts - List of IpAddresses
expiry - Interval (in msecs) for the refresher task
Method Detail

isRefresherEnabled

public boolean isRefresherEnabled()

setRefresherEnabled

public void setRefresherEnabled(boolean refresher_enabled)

stop

public void stop()

destroy

public void destroy()

addGossipRouter

public void addGossipRouter(IpAddress gossip_host)
Adds a GossipRouter to be accessed.


register

public void register(java.lang.String group,
                     Address mbr)
Adds the member to the given group. If the group already has an entry for the member, its timestamp will be updated, preventing the cache cleaner from removing the entry.

The entry will be registered with all GossipRouters that GossipClient is configured to access


unregister

public void unregister(java.lang.String group,
                       Address mbr)

getMembers

public java.util.List getMembers(java.lang.String group)
Returns all members of a given group

Parameters:
group - The group name
Returns:
List A list of Addresses

main

public static void main(java.lang.String[] args)


Copyright ? 1998-2006 Bela Ban. All Rights Reserved.