/*
* Copyright (c) 2002 Sun Microsystems, Inc. All rights reserved. U.S.
* Government Rights - Commercial software. Government users are subject
* to the Sun Microsystems, Inc. standard license agreement and
* applicable provisions of the FAR and its supplements. Use is subject
* to license terms.
*
* This distribution may include materials developed by third parties.
* Sun, Sun Microsystems, the Sun logo, Java and J2EE are trademarks
* or registered trademarks of Sun Microsystems, Inc. in the U.S. and
* other countries.
*
* Copyright (c) 2002 Sun Microsystems, Inc. Tous droits reserves.
*
* Droits du gouvernement americain, utilisateurs gouvernementaux - logiciel
* commercial. Les utilisateurs gouvernementaux sont soumis au contrat de
* licence standard de Sun Microsystems, Inc., ainsi qu'aux dispositions
* en vigueur de la FAR (Federal Acquisition Regulations) et des
* supplements a celles-ci. Distribue par des licences qui en
* restreignent l'utilisation.
*
* Cette distribution peut comprendre des composants developpes par des
* tierces parties. Sun, Sun Microsystems, le logo Sun, Java et J2EE
* sont des marques de fabrique ou des marques deposees de Sun
* Microsystems, Inc. aux Etats-Unis et dans d'autres pays.
*
*/
package listeners;
import database.BookDB;
import javax.servlet.*;
import util.Counter;
public final class ContextListener
implements ServletContextListener {
private ServletContext context = null;
public void contextInitialized(ServletContextEvent event) {
context = event.getServletContext();
try {
BookDB bookDB = new BookDB();
context.setAttribute("bookDB", bookDB);
} catch (Exception ex) {
System.out.println("Couldn't create bookstore database bean: " + ex.getMessage());
}
Counter counter = new Counter();
context.setAttribute("hitCounter", counter);
counter = new Counter();
context.setAttribute("orderCounter", counter);
}
public void contextDestroyed(ServletContextEvent event) {
context = event.getServletContext();
BookDB bookDB = (BookDB)context.getAttribute("bookDB");
if (bookDB != null)
bookDB.remove();
context.removeAttribute("bookDB");
context.removeAttribute("hitCounter");
context.removeAttribute("orderCounter");
}
}