"Jon Eaves" <[EMAIL PROTECTED]> wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > Hi again Bill, > > >> Aha. I was hoping this wasn't going to be the answer. Oh well. > >> > >> [ snip ] > >> > >> If this is the case, why does the code for the Valve recommend > >> implementing the Lifecycle interface ? What was the design reason for > >> that ?h > > > > By implementing Lifecycle, you get well-defined states to allocate and > > release any resources that your Valve may need. Since the order of > > setting attributes is undefined, it makes it much easier to determine > > resources that depend on multiple attribute values. It's pretty much > > independent of the MBeans. > > > > Excellent, so the Valves can then conform to an defined > servlet/applet/midlet like behaviour. I noticed the use of the > start() etc methods in the Valve and guessed that was something to > do with it, but also guessed wrong that it was relating to the MBeans. > > > It's purely because of the Valve definition in server.xml, when it can't > > find the MBean to manage it. Actually, the Valve should function fine > > even with the error: It's just noise in the log. > > Yup. My Valves were all working just fine with the errors, but I wanted > to be neat and tidy ;-) > > > > >> The reason I ask is because it seems bit of dicking around just to > >> implement a new Valve. Writing the code took about 2 hours, it then > >> took 2 days to get the exception stuff sorted out. > >> > >> What is the additional information used for ? And was there a better > >> (read simpler and less mucking around) way to solve my "get rid of the > >> exception" than addition of the descriptor, or is that required for > >> all additional components in Tomcat ? > > > > > > With the MBean info, it is possible to use other JMX-enabled tools to > > manage Tomcat (including your Valve). The admin web-app is only one > > example of such a tool. It is also likely that JMX support will improve > > in Tomcat 5.x. > > > > Of course, the simplest way to "get rid of the exception" is to disable > > (aka comment out) the MBeans Listeners in server.xml. > > OK. I'll have a play around with that. I think I tried that originally, > and when I did, the Administration application stopped working, but that > may just have been co-incidence.
Well, yeah, that's a side affect. ;-) > > Thanks very much Bill and Craig for your patience. I feel honored to be mentioned in the same sentence with Craig on this thread :-). > > Cheers, > -- jon > > -- > Jon Eaves <[EMAIL PROTECTED]> > http://www.eaves.org/jon/ -- To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> For additional commands, e-mail: <mailto:[EMAIL PROTECTED]>
