Again, in the coming 5.4-alpha-3, application version is informational only, which bypasses the issues that Barry is concerned about.
On Tue, Apr 9, 2013 at 9:38 AM, Barry Books <trs...@gmail.com> wrote: > I could just use the default but this way I know what it's doing. I also > release more than I restart so that does not matter to me. Clustering would > be a problem > > On Apr 9, 2013, at 8:39 AM, Dmitry Gusev <dmitry.gu...@gmail.com> wrote: > > > Barry, > > > > no need to pass current date as application version, because if you don't > > supply any defaults then > > tapestry will generate random version for you. > > > > But this may have some limitations if you're running in a clustered > > environment. > > > > Also your clients will get new assets every time you restart your server. > > > > See this: > > > http://mail-archives.apache.org/mod_mbox/tapestry-users/201005.mbox/%3caanlktinz4ukjng-zom8t86ry-mrw7st7e9eufhkvv...@mail.gmail.com%3e > > > > > > On Tue, Apr 9, 2013 at 5:26 PM, Barry Books <trs...@gmail.com> wrote: > > > >> After being bitten by APPLICATION_VERSION I switched to this > >> > >> configuration.override(SymbolConstants.APPLICATION_VERSION, > >> *new*Date().getTime()); > >> > >> > >> This way on my development machine I get a new version every restart > and on > >> my production machine on every deploy. > >> > >> > >> That said I think the hash of the object in the URL and a never expires > >> header is the way to handle this. The only problem I can think of is > assets > >> in style sheets. I would say the solution to that problem lookup the > asset > >> with the hashed url and return the object with a never expires header. > If > >> there is no hash just return the object without the header. This makes > it > >> easy to use assets in stylesheets. If you want to solve the caching > problem > >> just override (or declare) the style in the Layout component and use the > >> asset like this: > >> > >> > >> <style> > >> > >> .navbar-fixed-top { > >> > >> xheight: 64px; > >> > >> background-position: 0px 40px; > >> > >> xbackground-image: url('${context:/images/top-background.jpg}'); > >> > >> xbackground-repeat: repeat-x; > >> > >> } > >> > >> </style> > > > > > > > > -- > > Dmitry Gusev > > > > AnjLab Team > > http://anjlab.com > > --------------------------------------------------------------------- > To unsubscribe, e-mail: dev-unsubscr...@tapestry.apache.org > For additional commands, e-mail: dev-h...@tapestry.apache.org > > -- Howard M. Lewis Ship Creator of Apache Tapestry The source for Tapestry training, mentoring and support. Contact me to learn how I can get you up and productive in Tapestry fast! (971) 678-5210 http://howardlewisship.com
