http://code.google.com/p/lichen-forum/
Erik Vullings-2 wrote:
>
> Hi,
>
> I've read the manual about services, but don't get it: It's like seeing
> the
> puzzle pieces, but not the whole. Can someone explain it to me please,
> especially:
>
> 1. How can I use a service to connect to my database? Or should I use
> Hibernate?
> 2. How can I use a service to access the file system? In the demos,
> Howard uses a service to access his CD library, and it seems really
> cool,
> but I have no idea how he does it...
>
> More specifically, I had a struts2 MVC webapp which I'm porting to T5. It
> had three layers: JSP, which maps nicely to HTML templates, Controllers,
> which are myTapestry components and pages, and my DAL, which is still
> there.
> So for every serious class that I need to persist, it has a DAO that does
> it
> for me e.g.:
>
> public WhateverDAO() {
> dataSource = new DriverManagerDataSource();
> dataSource.setDriverClassName(Globals.dbDriver);
> dataSource.setUrl(Globals.dbURL);
> dataSource.setUsername(Globals.dbUsername);
> dataSource.setPassword(Globals.dbPassword);
> ...
> }
> public List<QandA> retrieve(long poId) throws SQLException {
> JdbcTemplate jt = new JdbcTemplate(dataSource);
> ...
> }
>
> This does not seem to be the Tapestry way, but can someone show me the
> true
> path :-) A service seems to be the answer... or Hibernate, but I'm not
> sure
> whether that will save me a lot of time.
>
> Thanks,
> Erik
>
>
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