I too totally agree with Partha, we cannot use singleton as servlet themselves has one instance so when multiple user will try to access it will create a problem
What i could think the best solution for this is calling some method on regular intervals and updating the object which you should put in the application scope Cheers, Rahul > Singleton pattern will have problems when the web tier has multiple > classloaders, when there may be multiple instances of the singleton. So > take the help of the container... use an application object for stroing > the common object and not a singleton. > Regards, > Partha > > -----Original Message----- > From: A mailing list for discussion about Sun Microsystem's Java Servlet > API Technology. [mailto:[EMAIL PROTECTED] Behalf Of Chris > Pratt > Sent: Thursday, September 01, 2005 10:13 AM > To: SERVLET-INTEREST@JAVA.SUN.COM > Subject: Re: Global Data > > > Use the static singleton pattern to construct a States object to hold the > static data. Make sure it has some method to allow it to be reloaded on > the fly. Then add an extra web page to your web app (possibly with higher > security) that allows you to reload the States singleton after you've > updated the database. Or even better have that page present you with a > form to add the new State to both the singleton and the database in one > fell-swoop. > (*Chris*) > > > On 8/31/05, SUBSCRIBE EJB-INTEREST anonymous < [EMAIL PROTECTED]> wrote: > > Hi, > I have a question. > In my web application, when the user logs in, I have to load all State > information from the database and display it.The State information will be > common to all users.I would add new States into the database table. > My question is what is the best way to get the state information from > database and store it globally,so that, it can be shared by all users. > > If I use servlet for this, and load the state information in the init(), I > have to restart the server whenever I add new state information to the > database, inorder to get the new states.I don't want the server to get > restarted whenever I add state information to database.SO, this option is > not feasible. > Is there any other way to do this? > > Any ideas/suggestions to resolve this issue would be very helpful for me. > > Thanks in advance. > > ___________________________________________________________________________ > To unsubscribe, send email to [EMAIL PROTECTED] and include in the > body > of the message "signoff SERVLET-INTEREST". > > Archives: http://archives.java.sun.com/archives/servlet-interest.html > Resources: http://java.sun.com/products/servlet/external-resources.html > LISTSERV Help: http://www.lsoft.com/manuals/user/user.html > > > > ___________________________________________________________________________ > To unsubscribe, send email to [EMAIL PROTECTED] and include in the > body of the message "signoff SERVLET-INTEREST". > > Archives: http://archives.java.sun.com/archives/servlet-interest.html > Resources: http://java.sun.com/products/servlet/external-resources.html > LISTSERV Help: http://www.lsoft.com/manuals/user/user.html > > > > > > ___________________________________________________________________________ > To unsubscribe, send email to [EMAIL PROTECTED] and include in the > body > of the message "signoff SERVLET-INTEREST". > > Archives: http://archives.java.sun.com/archives/servlet-interest.html > Resources: http://java.sun.com/products/servlet/external-resources.html > LISTSERV Help: http://www.lsoft.com/manuals/user/user.html > > ___________________________________________________________________________ To unsubscribe, send email to [EMAIL PROTECTED] and include in the body of the message "signoff SERVLET-INTEREST". Archives: http://archives.java.sun.com/archives/servlet-interest.html Resources: http://java.sun.com/products/servlet/external-resources.html LISTSERV Help: http://www.lsoft.com/manuals/user/user.html
