Hi, Even if you solve the File I/O issue, I would guess that you may then face security issue: Google has probably protected its instances against execution of code not coming direcly from the war file...
Anyway, very interesting question: pls, let us konw how you progress. regards didier On Mar 9, 5:43 am, Larry Cable <[email protected]> wrote: > On Mar 8, 8:35 pm, Larry Cable <[email protected]> wrote: > > > > > On Mar 7, 12:13 am, Rick Smith <[email protected]> wrote: > > > > Hi all > > > > Can I create and compile a java class at run time on goolge > > > appengine. > > > Use case: I have given a UI to my application user that they can > > > define their own business logic.Now what is going to be main challenge > > > is that I need to make new deployment each time when some one need to > > > modify its business logic. As an alternate I want to store source code > > > in data base and compile it when required. > > > > Regards > > > > Rick > > > As others have pointed out the file I/O issue precludes using a > > compiler .... > > > The best I can suggest is using BCEL to construct classes at > > runtime... But I have never tried this with GAE so I do not know if > > BCEL is whitelist safe. > > Just as a followup you need to take a look at the BCEL API to see if > you can create in-memory class files ... Otherwise you will trip up > over the File I/O issue again. -- 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 [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
