Client code :
package client;
import one.Class;
import one.ClassHome;
import javax.naming.InitialContext;
import javax.naming.NamingException;
public class client {
public static void main (
String[] args) {
InitialContext ctx;
try {
ctx = new InitialContext();
System.out.println(ctx);
ClassHome home=(ClassHome)ctx.lookup("SomeBean");
ClassTimer timer=home.create();
timer.calltimer(1000,3000, "nameoftimer");
}
catch (NamingException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
TimerCode -CallTimerBeancode
package one;
import java.io.Serializable;
import java.rmi.RemoteException;
import java.sql.*;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Iterator;
import java.util.List;
import javax.ejb.*;
import javax.naming.*;
import javax.sql.*;
public class ClassTimerBean implements SessionBean,TimedObject,Serializable {
private static final long serialVersionUID = 1L;
SessionContext sessionContext;
String timerstatus=null;
public boolean checkstatus() throws RemoteException
{
boolean timerflag=false;
try {
TimerService timerService = sessionContext.getTimerService();
for (Object obj:timerService.getTimers())
{
Timer mytimer=(Timer)obj;
timerstatus=(mytimer.getInfo().toString());
if(timerstatus.equalsIgnoreCase("nameoftimer"))
{
timerflag=true;
}
}
} catch (Exception e) {
timerflag=false;
}
return messagetimerflag;
}
public void cancelTimer() throws RemoteException
{
TimerService timerService = sessionContext.getTimerService();
/**
* Identifying timer and canceling the timer
* */
for (Object obj:timerService.getTimers())
{
Timer mytimer=(Timer)obj;
try{
if(messagetimer.getInfo().equals("nameoftimer"));
{
mytimer.cancel();
}
}catch(Exception e){}
}
}
public void calltimer(long initial, long interval, Serializable s) throws RemoteException
{
TimerService timerService = sessionContext.getTimerService();
Timer timer = timerService.createTimer(initial, interval,s);
}
public void ejbCreate()throws EJBException,RemoteException
{
}
public void ejbActivate() throws EJBException,RemoteException {
}
public void ejbPassivate() throws EJBException ,RemoteException{
}
public void ejbRemove() throws EJBException,RemoteException {
}
public void setSessionContext(SessionContext arg0) throws EJBException,RemoteException
{
sessionContext=arg0;
// TODO Auto-generated method stub
}
public void ejbTimeout(Timer arg0) {
// business logic to cancel request
}
}
