Réf. : Re: ActionForm vs Hibernate POJO

[ab...@aon.ca]

Thanks a lot,
Is there any work done for  OGNL integration in struts ?








Wendy Smoak <ja...@wendysmoak.com>
03/08/2004 11:57
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        Objet : Re: ActionForm vs Hibernate POJO


> I am using Struts with Hibernate, and I was asked to reuse the Hibernate
> pojo as forms for my actions.
> Is it possible ?

Possible, but not advisable... at some point you will need to have 
something
different in the form than in the POJO.  Forms are generally all String
properties, POJO's should have types that make sense for the type of data
stored in them.

Since you can generate the code for the Form (xdoclet?) or use Dynamic
forms, the amount of effort you save by trying to reuse the Value Object
(your POJO) is IMO not worth the problems it's likely to cause.

-- 
Wendy Smoak


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Re: ActionForm vs Hibernate POJO

[Wendy Smoak <ja...@wendysmoak.com>]

From: <ab...@aon.ca>
> Thanks a lot,
> Is there any work done for  OGNL integration in struts ?

[Googles...  Object-Graph Navigation Language; it is an expression
language for getting and setting properties of Java objects]

I'm not entirely sure what happens behind the scenes, but:

In the struts-example webapp, you'll see an example of
BeanUtils.copyProperties( ... ) being used to copy properties back and forth
from the POJO to the Form.  It can handle most conversions, or you can
register a Converter if something special needs to happen.

The Form gets populated from the request by the Struts framework, so if
you're concerned about having to call all the get/set methods yourself, that
is already taken care of.

HTH,
-- 
Wendy Smoak


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