public JvmRouteSessionIDBinderListener() 
{
    //--Constructor---------------------------------------------
}

 public boolean accept(ClusterMessage msg) 
{
        return (msg instanceof SessionIDMessage);
}

Accept only SessionIDMessages

 public String getInfo() 
{
        return (info);
}

Return descriptive information about this implementation.

 public long getNumberOfSessions() 
{
        return numberOfSessions;
}

 public  void messageReceived(ClusterMessage msg) 
{
        if (msg instanceof SessionIDMessage && msg != null) {
            SessionIDMessage sessionmsg = (SessionIDMessage) msg;
            if (log.isDebugEnabled())
                log.debug(sm.getString(
                        "jvmRoute.receiveMessage.sessionIDChanged", sessionmsg
                                .getOrignalSessionID(), sessionmsg
                                .getBackupSessionID(), sessionmsg
                                .getContextPath()));
            Container container = getCluster().getContainer();
            Container host = null ;
            if(container instanceof Engine) {
                host = container.findChild(sessionmsg.getHost());
            } else {
                host = container ;
            }
            if (host != null) {
                Context context = (Context) host.findChild(sessionmsg
                        .getContextPath());
                if (context != null) {
                    try {
                        Session session = context.getManager().findSession(
                                sessionmsg.getOrignalSessionID());
                        if (session != null) {
                            session.setId(sessionmsg.getBackupSessionID());
                        } else if (log.isInfoEnabled())
                            log.info(sm.getString("jvmRoute.lostSession",
                                    sessionmsg.getOrignalSessionID(),
                                    sessionmsg.getContextPath()));
                    } catch (IOException e) {
                        log.error(e);
                    }
                } else if (log.isErrorEnabled())
                    log.error(sm.getString("jvmRoute.contextNotFound",
                            sessionmsg.getContextPath(), ((StandardEngine) host
                                    .getParent()).getJvmRoute()));
            } else if (log.isErrorEnabled())
                log.error(sm.getString("jvmRoute.hostNotFound", sessionmsg.getContextPath()));
        }
        return;
}

Callback from the cluster, when a message is received, The cluster will broadcast it invoking the messageReceived on the receiver.

 public  void start() throws LifecycleException 
{
        if (started)
            return;
        getCluster().addClusterListener(this);
        started = true;
        if (log.isInfoEnabled())
            log.info(sm.getString("jvmRoute.clusterListener.started"));
}

Add this Mover as Cluster Listener ( receiver)

 public  void stop() throws LifecycleException 
{
        started = false;
        getCluster().removeClusterListener(this);
        if (log.isInfoEnabled())
            log.info(sm.getString("jvmRoute.clusterListener.stopped"));
}

Remove this from Cluster Listener