thank you of your response and your time
Now I understand the concept.


Francois Armand wrote:
> 
> iberck wrote:
>> Hi, I'm developing an application with tap 5..
>>   
> Great, good new. Welcome on board !
>> I don't understand why I can't use OGNL inside tap5 and with tap4 yes !
>>   
> 
> That's a design choice made by HLS. OGNL suffer some drawbacks, 
> including a performance penalty (even after the amazing work Jesse 
> Kuhnert did on that area), and a non-type safe way of handling 
> properties access. Moreover, it's always hard to synchronize the needs 
> and development of two major and independents frameworks. Finally, the 
> spirit of T5 is "clean templates, logic in the code (where it belongs)"
> 
> So, HLS choose to build for 5.0 a simple, efficient expression language, 
> but clearly not as expressive as OGNL.
>> I found a set of components
>> (http://code.google.com/p/tapestry5-components/)
>> that has the OGNL component, the question is why outside of the core ?
>>   
> 
> That's the alternative. T5-component provides an OGNL binding that let 
> you use it if you want.
> 
>> what in tap5 OGNL is out, what is the alternative?
>>   
> Tapestry 5 has a simple expression language, the doc is under template 
> and binding related pages: 
> http://tapestry.apache.org/tapestry5/guide/templates.html and here: 
> http://tapestry.apache.org/tapestry5/guide/parameters.html
> 
> 
> -- 
> Francois Armand
> Etudes & Développements J2EE
> Groupe Linagora - http://www.linagora.com
> Tél.: +33 (0)1 58 18 68 28
> -----------
> http://fanf42.blogspot.com
> InterLDAP - http://interldap.org 
> FederID - http://www.federid.org/
> Open Source identities management and federation
> 
> 
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org
> For additional commands, e-mail: users-h...@tapestry.apache.org
> 
> 
> 

-- 
View this message in context: 
http://www.nabble.com/-T5--Expression-Language-tp21674223p21685501.html
Sent from the Tapestry - User mailing list archive at Nabble.com.


---------------------------------------------------------------------
To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org
For additional commands, e-mail: users-h...@tapestry.apache.org

Reply via email to