Yes, I think you've got it exactly right. If you notice any deviations from this behavior, please post back on this thread and let us know.
On Tue, Sep 1, 2009 at 9:31 AM, Bill Higgins <billh...@gmail.com> wrote: > > Thanks much for the response Rajeev. Let me see if I can repeat and > reduce it to make sure I understand the formula. > > 1) DataNucleus will use EITHER log4j OR java.util.logging. It never > uses both. > 2) DataNucleus will use log4j if it detects log4j classes on the > classpath, otherwise it will use java.util.logging > 3) If my app doesn't use log4j, then I can safely delete the default > log4j.properties file and DataNucleus will happily use > java.util.logging > > Is this correct? > > On Aug 31, 5:22 pm, Rajeev Dayal <rda...@google.com> wrote: > > +[tobyr] > > > > Hi Bill, > > > > We include both logging files due to the implementation of Datanucleus. > If > > you have log4j on your classpath (or if you have any jars which bundle > the > > log4j classes), then Datanucleus will use the log4j logging system. If > you > > don't have a configuration file for log4j, then none of the information > will > > be displayed. That is why we include one by default. If you do not have > > log4j on your classpath, then the log4j system is not used, and neither > is > > the log4j.properties file which we include. > > > > If you are sure that you do not have any log4j classes on your classpath, > > then you can safely remove the log4j.properties file, and control all of > > your logging via the logging.properties file. If you're using log4j, you > can > > get rid of the logging.properties file. > > > > My recommendation would be to keep both files, and only update the one > for > > the logging system that you're using. You don't need to keep both of them > in > > sync unless you adjust the Datanucleus logging levels. > > > > Let me know if you have any questions - I know that this is somewhat > > confusing. > > > > Rajeev > > > > > > > > On Sun, Aug 30, 2009 at 7:51 AM, Bill Higgins <billh...@gmail.com> > wrote: > > > > > Hi, I'm new to App Engine development, and am a bit confused by the > > > logging configuration files that the Google Eclipse project produces > > > in a new web application project. > > > > > When you create a new web app project, the new project includes two > > > logging configuration files: > > > > > <project>/src/log4j.properties > > > <project>/war/WEB-INF/logging.properties > > > > > I understand that the first is for log4j and the second for > > > java.util.logging but I'm not sure why one would need both and how > > > each affect logging determinations. If I make changes to one should I > > > make changes to another? Is there a safe way to delete one and simply > > > use the other? If so which one is the keeper? > > > > > Thanks in advance. > > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Google App Engine for Java" group. To post to this group, send email to google-appengine-java@googlegroups.com To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en -~----------~----~----~----~------~----~------~--~---
