T5: Hibernate ValueEncoders

[Angelo Chen <an...@yahoo.com.hk>]

Hi,
  In Howard's blog, he mentioend:

Automatic Hibernate ValueEncoders: Use an entity as a page or event context
and what goes in the URL is the entity's id. Likewise, ids are turned back
into entities when passed to event handler methods.

What's really this? how to use it? Thanks.

A.C.
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Re: T5: Hibernate ValueEncoders

["Filip S. Adamsen" <fs...@fsadev.com>]

Hi,

It means that you can pass Hibernate entities around instead of ids.

Example:

   void onActivate(Long id) { User user = session.get(User.class, id); }
   Long onPassivate() { return user.getId(); }

becomes

   void onActivate(User user) { ... }
   User onPassivate() { return user; }

And so forth. Of course this only works if you actually use 
tapestry-hibernate. :)

-Filip

On 2008-03-16 07:14, Angelo Chen wrote:
> Hi,
>   In Howard's blog, he mentioend:
> 
> Automatic Hibernate ValueEncoders: Use an entity as a page or event context
> and what goes in the URL is the entity's id. Likewise, ids are turned back
> into entities when passed to event handler methods.
> 
> What's really this? how to use it? Thanks.
> 
> A.C.

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