Nanduri Amarnath wrote:
> Hi ,
> I was wondering..if a bean has "application" scope, does it mean that only
> one instance of the bean is created and all the users / pages will be able to
> access that one instance ? Thank you.
>
Yes. One bean is created (per id -- you can have more than one application-scope
bean if you need them), and is shared among all the servlets and JSP pages in a
particular web application. In a JSP page, you use <jsp:useBean id="xxx"
scope="application" /> to access this bean. From a servlet, you use
ServletContext.getAttribute().
If you are running multiple web applications in your server, they generally cannot
see each other's application-scope beans. (Some servlet engines let you turn the
functionality of ServletContext.getContext(), which lets you access other contexts,
on and off for security reasons.)
>
> Cheers,
> Amar..
>
Craig McClanahan
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