thanks. are there other app servers, other than tomcat, which may have similar functionality?
thanks Nilesh On Tue, Apr 29, 2008 at 4:41 AM, Peter Crowther <[EMAIL PROTECTED]> wrote: > > From: Nilesh Bansal [mailto:[EMAIL PROTECTED] > > > > I have a question regarding context reloading in tomcat. Our app > > consists of two type of Java class files (1) core modules consisting > > of many singletons which are initialized once by reading large files > > from filesystem at the start of application (2) helper classes mostly > > for formatting, e.g., a servlet that serves a PNG graph, formatting of > > time in different formats, and classic JSP tags extending TagSupport. > > > > Tomcat allows users to set "reloadable=true", but that reloads the > > whole context (even if a single class has changed). This means, our > > application has to initialize itself all over again which is time > > consuming (it reads lot of stuff from files in memory). Is there a way > > to set partial reload?? Which means, if one of the helper classes has > > changed (and core classes are intact), just replace that changed code > > in the context. > > > > Any help on this issue will be of great use to us. > > There's a hack, but it's pretty gross. If this is the only webapp on the > server, you might be able to put the jars for the core classes in common/lib. > They would be initialised once, and context reloads wouldn't reinitialise > them. However, you'd then need to restart Tomcat to force a reload of the > core classes - this is clearly not a solution that's appropriate for a Tomcat > with several webapps on it! > > A second approach would be to have two webapps - one with your core and one > with your helper classes. Change the communication between the two to use > some appropriate mechanism that works between webapps. You could then reload > one webapp independently of the other. > > I'm not aware of any facility for a partial reload other than this. > > - Peter > > --------------------------------------------------------------------- > To start a new topic, e-mail: users@tomcat.apache.org > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > > -- Nilesh Bansal --------------------------------------------------------------------- To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
