Actually, it wasn't the coercion to GridDataSource I was concerned about. It looks like a Set is generated in the page, and then passed to the component as a List and then that is used as the source for the grid.
(Having said that, is com.mycompany.MyType a custom type declared for Hibernate?) I experienced strange things back with T4, Hibernate and different collection types and inheritance hierarchies when passing parameters. At the time I was a rookie with Hibernate, Spring and Tapestry so it was never an issue of "should this work?" it was an issue of "what do I have to do to make this work?" In addition to the stack trace, the page code (particularly that portion generating the collection) would be useful. Jonathan > -----Original Message----- > From: Howard Lewis Ship [mailto:[EMAIL PROTECTED] > Sent: Saturday, April 05, 2008 9:00 AM > To: Tapestry users > Subject: Re: Coercion error in grid > > No, I'm pretty sure there's a built-in coercion from Collection to > GridDataSource. Again, a stack trace would be helpful to figure out > what's really going on here (and the exact version of Tapestry). > > On Fri, Apr 4, 2008 at 1:53 PM, Jonathan Barker > <[EMAIL PROTECTED]> wrote: > > > > It sounds like the underlying data (from the page) is in a Set, whereas > your > > component wants a List. Try converting your Set to a List before > passing to > > the component. > > > > > > > > > > > -----Original Message----- > > > From: Howard Lewis Ship [mailto:[EMAIL PROTECTED] > > > Sent: Friday, April 04, 2008 2:58 PM > > > To: Tapestry users; [EMAIL PROTECTED] > > > Subject: Re: Coercion error in grid > > > > > > That is really, really odd. A stack trace (and the exact version of > > > Tapestry you are using) would be helpful.ß > > > > > > On Fri, Apr 4, 2008 at 3:06 AM, Stephane Decleire > > > <[EMAIL PROTECTED]> wrote: > > > > Hi all, > > > > > > > > When i try to show a list of my objects in a grid, i get the > following > > > > error : > > > > "Could not find a coercion from type > > > org.hibernate.collection.PersistentSet > > > > to type com.mycompany.MyType" > > > > > > > > Here is my component code : > > > > > > > > public class UserAdsList { > > > > > > > > @Parameter(required = true) > > > > private List<Ad> ads = null; > > > > public List<Ad> getAds() { > > > > return ads; > > > > } > > > > public void setAds(List<Ad> ads) { > > > > this.ads = ads; > > > > } > > > > } > > > > > > > > > > > > and template : > > > > > > > > <t:container > > > > xmlns:t="http://tapestry.apache.org/schema/tapestry_5_0_0.xsd";> > > > > > > > > <t:grid source="ads"/> > > > > > > > > </t:container> > > > > > > > > Any idea ? > > > > > > > > Stephane > > > > > > > > > > > > > > > > -- > > > Howard M. Lewis Ship > > > > > > Creator Apache Tapestry and Apache HiveMind > > > > > > --------------------------------------------------------------------- > > > To unsubscribe, e-mail: [EMAIL PROTECTED] > > > For additional commands, e-mail: [EMAIL PROTECTED] > > > > > > --------------------------------------------------------------------- > > To unsubscribe, e-mail: [EMAIL PROTECTED] > > For additional commands, e-mail: [EMAIL PROTECTED] > > > > > > > > -- > Howard M. Lewis Ship > > Creator Apache Tapestry and Apache HiveMind > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
