Kevin, Almost three years ago, I climbed learning curves for T4 (and Hivemind), Spring, Acegi, and Hibernate simultaneously. It was... challenging.
Make sure you really need ManyToMany with Hibernate. Often, two OneToMany relationships will suffice. Take your time with Hibernate. See how the different options result in different implementations (in the database) of relationships. Reverse engineer an existing database and see what Hibernate gives you. I think I know Hibernate pretty well, and yet I keep the reference guide up whenever I'm working with it - even with content-assist. Oh, and take some time to figure out how you are going to implement equals() and hashCode() - those are important questions with Hibernate. Have fun! Jonathan > -----Original Message----- > From: dok...@phideaux.rawfeddogs.net > [mailto:dok...@phideaux.rawfeddogs.net] On Behalf Of Kevin Monceaux > Sent: Saturday, January 03, 2009 00:58 > To: Tapestry users > Subject: RE: T5 newbie books/tutorials and a couple of questions? > > Jonathan, > > On Fri, 2 Jan 2009, Jonathan Barker wrote: > > > Search the list for the Jumpstart application. It has been kept right > > up to date with the latest release of T5. I think you will find it has > > many good examples. (Also, search the Wiki for titles with "Tapestry5". > > It's not all up to date, but there's some great stuff.) > > It looks like there's plenty there to keep me busy for a while. It > doesn't seem to have any ManyToMany relation examples. The following in > the Jumpstart root directory: > > # find . -name "*.java" -exec grep ManyToMany {} \; > > returns nothing. But, it does have a few OneToMany relations, which > should be close enough to get me started. > > Searching the wiki for ManyToMany also turned up next to nothing. It > turned up a couple of pages, but they just mentioned OneToMany, > ManyToMany, etc., in passing without any actual code examples of the > annotations. I was sure I saw a few examples in the tapestry5 doc > section. Is the main Tapestry site indexed by Google? A Google search > for: > > site:tapestry.apache.org/tapestry5 ManyToMany > > got no hits at all. > > > I'm not sure you really want a grid for what you have displayed, but > rather > > Loops generating the tables on your own. Because you have both column > and > > row groupings (COLSPAN,ROWSPAN) on the pages you listed, I'm not sure > how > > you would do things like apply sorting. > > I suspected that might be the case. The grid component is impressive > enough as it is. If it could "magically" handle multi-level hierarchical > data I might not know how to act. :-) With Django I'm currently > generating those pages with nested loops. Before Django I gave > ASP.NET(via Mono on a FreeBSD box) a try and was generating those pages by > dumping the data to XML and using XSLT. > > > Hibernate has a learning curve all its own, so if you're not familiar > > with it, take some time to learn it on its own. At least be prepared > > for some hair-pulling if you try to learn both Tapestry and Hibernate at > > the same time. > > I'm a relative newbie to Tapestry, Hibernate, and Java. It might be a > good thing that I have very little hair. I figure if I'm going to go bald > some day I might as well beat nature to it. I alternate between clipping > it as short as clippers will clip it, and shaving my head. I've let it > grow out a bit for winter. Maybe I should shave it before Hibernate > drives me to trying to pull what little I have left out. :-) > > > > Kevin > http://www.RawFedDogs.net > http://www.WacoAgilityGroup.org > Bruceville, TX > > Si hoc legere scis nimium eruditionis habes. > Longum iter est per praecepta, breve et efficax per exempla!!! > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org > For additional commands, e-mail: users-h...@tapestry.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org For additional commands, e-mail: users-h...@tapestry.apache.org
