Hi,
I've wondered the same thing and taken a quick look at it. I'm pretty
sure that it can be done, but the big issue is how to identify what the
activation context's value means to the entity? With a PK it's easy to
make assumptions (cast the context value and if it can be cast to a long
and the context argument type is a known hibernate entity, load it from
the ORM). Anyway, take a look at the tapestry-hibernate source and pay
close attention to the PK-based ValueEncoders - because you'll need to
create a new one - and also to how it registers them with hibernate
entities.
good luck and please share any troubles/victories
chris
Angelo Chen wrote:
> Hi,
>
> I like the feature that we can now pass Hibernate entity to the onActivate
> and T5 automatically picks up object from database. however it assumes what
> passed is the primary key, example:
>
> 1. this works.
> localhost://page/1
>
> 2. this will not work:
> localhost://page/myName
>
> is there a way to tell T5 that to use a particular field to pick up the
> object?
>
> thanks,
>
> sample code follows:
>
> public class Page
> {
> private Person person;
>
> void onActivate(Person person)
> {
> this.person = person;
> }
>
> Object onPassivate()
> {
> return this.person;
> }
> }
>
>
>
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