Henner, Please could you tell me what dangers there may be by commenting out code in the dofinally method in a tag.
Jez. > Henner Kollmann <[EMAIL PROTECTED]> wrote: > > > This is definitivly a bug in resin. Tomcat resuses the tags but but the > initialize for each new loop. This is described in the jsp definitions > as > tag reusing. This tag reusing is the reason why we introduce the > doFinally > once. So i will not change this in dbforms. > > Best regards, > Henner > > > -----Original Message----- > > From: [EMAIL PROTECTED] > > [mailto:[EMAIL PROTECTED] On > > Behalf Of [EMAIL PROTECTED] > > Sent: Wednesday, October 18, 2006 12:25 AM > > To: jdbforms-interest@lists.sourceforge.net > > Subject: [dbforms] DbForms and Resin. Null pointer exception. > > > > Hi all, > > > > I just ported by DbForms App from Tomcat 5.5 to Resin and > > found that most of the tags don't work in a looped > > environment (ie displaying a list of records). In this case > > the first tag works but for all subsequent tags you get a > > null pointer exception. > > > > I know that in the past there have been various messages > > posted regarding Resin so I thought that I'd share my findings. > > > > After analysing the java file generated by Resin and Tomcat I > > found that the way Tomcat processes tags is by creating a new > > instance of the tag for each loop iteration. > > > > Tags in the Resin java generated file are defined at class > > level. For each loop iteration it processes the tag and calls > > the dofinally routine which clears all tag information (it > > also initialises the tag on the first iteration only by > > checking if the tag is null), thus the subsequent loop fails > > as all the internals are set to null. > > > > The solution (and it is a hack) is to comment out the > > contents of the doFinally methods for each tag that could be > > used in a looping situation. Once this is done there does not > > seem to be any other inherent problem with Resin. > > > > Jez. > > > > -------------------------------------------------------------- > > ----------- > > Using Tomcat but need to do more? Need to support web > > services, security? > > Get stuff done quickly with pre-integrated technology to make > > your job easier Download IBM WebSphere Application Server > > v.1.0.1 based on Apache Geronimo > > http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&; > dat=121642 > > _______________________________________________ > > DbForms Mailing List > > > > http://www.wap-force.net/dbforms > > ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ DbForms Mailing List http://www.wap-force.net/dbforms
