Besides, would it even help? Is the time in obtaining a Method instance rather than invoking it?
------------------------------------- David Pollak<feeder.of.the.be...@gmail.com> wrote: On Tue, Feb 9, 2010 at 9:10 AM, Hugo Palma <hugo.m.pa...@gmail.com> wrote: > Why doesn't Lift create the mapping at startup using reflection ? > It's not using reflection that's the problem, it's using reflection at > runtime for every single snippet usage. > Why do you care? The cost of doing a method dispatch via reflection is about 5x the cost of a doing a method call on an interface with is about 2x more costly than doing a method call on a class. The amount of time to do reflection on the 10 or 20 snippets you may have on a page is unmeasurably small compared to the cost of rendering the page. > > I may be over simplifying things, but if at startup Lift would go > through all snippet classes and using reflection found all the methods > kept all the mappings somewhere in memory i think it could work. > Is this doable ? > No, it is not possible at start-up time to determine all the classes that might be snippets. > > On 9 Fev, 17:01, Timothy Perrett <timo...@getintheloop.eu> wrote: > > So you don't want to write any explicit mapping, and you don't want to > use reflection??? How would you propose Lift know what your asking for? > > > > Im afraid voodoo is not yet compatible with the JVM ;-) > > > > Cheers, Tim > > > > On 9 Feb 2010, at 16:54, Hugo Palma wrote: > > > > > > > > > I just readhttp://wiki.github.com/dpp/liftweb/about-snippetsand i > > > have the following question: > > > > > So is really the only way to avoid having a reflection call every time > > > you use a snippet to use a DispatchSnippet with a case statement for > > > every method ? > > > It's just that i don't really think that the case is a very clean way > > > of doing things. Can be ok for a couple of methods but it can be > > > really ugly with more than that. > > > > > So, is there any other way ? > > > Thanks. > > > > > -- > > > You received this message because you are subscribed to the Google > Groups "Lift" group. > > > To post to this group, send email to lift...@googlegroups.com. > > > To unsubscribe from this group, send email to > liftweb+unsubscr...@googlegroups.com<liftweb%2bunsubscr...@googlegroups.com> > . > > > For more options, visit this group athttp:// > groups.google.com/group/liftweb?hl=en. > > -- > You received this message because you are subscribed to the Google Groups > "Lift" group. > To post to this group, send email to lift...@googlegroups.com. > To unsubscribe from this group, send email to > liftweb+unsubscr...@googlegroups.com<liftweb%2bunsubscr...@googlegroups.com> > . > For more options, visit this group at > http://groups.google.com/group/liftweb?hl=en. > > -- Lift, the simply functional web framework http://liftweb.net Beginning Scala http://www.apress.com/book/view/1430219890 Follow me: http://twitter.com/dpp Surf the harmonics -- You received this message because you are subscribed to the Google Groups "Lift" group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/liftweb?hl=en. -- You received this message because you are subscribed to the Google Groups "Lift" group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/liftweb?hl=en.
