Maybe it's best to rely on transactional mechanisms of the database. Then you don't have to worry about locking in your application. When one administrator A saves the data, the application could easily check if data has been updated by any other administrator B (or perhaps a user) since A began his editing, and notify administrator A about this.
Regards, Kent Vilhelmsen > On Mon, 20 May 2002, Emilio Miranda wrote: > > > Hi, really apreciate your help. but What I mean is a case in web. > > It is: > > > > administrator A login to a site and modify data of some user > > > > at the same time administrator B are modifying the data of the same user. > > > > I would like some message for administrator A, something like a "sorry you > > cant change these data right now" . > > > > So I want to know if Tomcat could help me in some way > > > > Thanks a lot! > > > > -----Mensaje original----- > > De: Mike Jackson [mailto:[EMAIL PROTECTED]] > > Enviado el: lunes, 20 de mayo de 2002 13:32 > > Para: Tomcat Users List > > Asunto: RE: just one edit. > > > > > > You'll probably want to synchronize on a static object I think. Something > > like this: > > > > public class WhatEver { > > protected static Object lock = new Object(); > > public void doStuff() { > > sychronized( lock ) { > > // do protected stuff here > > } > > } > > } > > > > --mikej > > -=----- > > mike jackson > > [EMAIL PROTECTED] > > > > > -----Original Message----- > > > From: Emilio Miranda [mailto:[EMAIL PROTECTED]] > > > Sent: Monday, May 20, 2002 11:15 AM > > > To: Tomcat Users List > > > Subject: just one edit. > > > > > > > > > > > > Hello, I am sorry if that is an offtopic. > > > > > > How can I be sure that only one user is changing some data at the time? > > > could Tomcat help me on that? > > > I mean , supouse that one user change a name an another try to > > > change at the > > > same time. > > > > > > Thanks a lot! > > > > > > > > > -- > > > To unsubscribe, e-mail: > > > <mailto:[EMAIL PROTECTED]> > > > For additional commands, e-mail: > > > <mailto:[EMAIL PROTECTED]> > > > > > > > -- > > To unsubscribe, e-mail: > > <mailto:[EMAIL PROTECTED]> > > For additional commands, e-mail: > > <mailto:[EMAIL PROTECTED]> > > > > > > -- > > To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> > > For additional commands, e-mail: <mailto:[EMAIL PROTECTED]> > > > > > -- > To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> > For additional commands, e-mail: <mailto:[EMAIL PROTECTED]> -- To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> For additional commands, e-mail: <mailto:[EMAIL PROTECTED]>
