General speaking when with Hibernate, only convert entity to primary key id, 
and then get back to entity, much like HibernateEntityValueEncoder class.

DH
----- Original Message ----- 
From: "manuel aldana" <ald...@gmx.de>
To: "Tapestry users" <users@tapestry.apache.org>
Sent: Saturday, March 07, 2009 5:13 PM
Subject: Re: Page navigation passed value not displayed (@InjectPage style)


> So you mean if I provide a coercion for User, the User gets serialized 
> to an activation-context snippet in the URL, and after that the snippets 
> gets deserialized back to my User object?
> 
> Maybe an out of the box coercion for custom types would be interesting 
> (to an ordered comma separated String list). Surely it will also show up 
> problems, especially if my User does not only include simple types only 
> (and object graph is more complicated).
> 
> 
> Andy Pahne schrieb:
>>
>>
>> That's possible. Have a look at
>>    http://tapestry.formos.com/nightly/tapestry5/tapestry-ioc/coerce.html
>> esp. the section "Contributing new Coercions"
>>
>>
>>
>>
>>
>>>
>>> Example: I want to pass a User through activation context:
>>>
>>> class User { private String name; private String password;...}
>>>
>>> Registration{
>>> ...
>>> public void onActivate(User user){...}
>>> ....
>>> }
>>>
>>
>>
>>
>>
>>
>>
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> 
> -- 
> manuel aldana
> ald...@gmx.de
> software-engineering blog: http://www.aldana-online.de
> 
> 
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