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From Jeff_Mycha...@nlgroup.ca
Subject Re: Struts Form Beans & Value Objects
Date Tue, 03 Dec 2002 14:50:21 GMT

I do this often and it works well.
The only thing I always forget to do if initialize the Vo

Ensure this is done in the form Bean:
MyValueObject myVo = new MyValueObject();

Hope this helps.




"Pat Quinn" <pat_quinn2009@hotmail.com> on 12/03/2002 05:23:05 AM

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Subject:    Re: Struts Form Beans & Value Objects


Hi,

I have tried the below it works fine when i fetch the data but when i want
to update a text field etc i get the following error:

java.lang.IllegalArgumentException: No bean specified
 at
org.apache.commons.beanutils.PropertyUtils.getPropertyDescriptor(PropertyUtils.java:816)

 at org.apache.commons.beanutils.BeanUtils.setProperty(BeanUtils.java:846)
 at org.apache.commons.beanutils.BeanUtils.populate(BeanUtils.java:726)
 at org.apache.struts.util.RequestUtils.populate(RequestUtils.java:978)
 at
org.apache.struts.action.RequestProcessor.processPopulate(RequestProcessor.java:779)

 at
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:246)

 at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1292)
 at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:510)


any ideas???






>From: "Patrice" <ppichere@nerim.net>
>Reply-To: "Struts Users Mailing List" <struts-user@jakarta.apache.org>
>To: "Struts Users Mailing List" <struts-user@jakarta.apache.org>
>Subject: Re: Struts Form Beans & Value Objects
>Date: Mon, 2 Dec 2002 19:28:00 +0100
>
>I think you can place the VO in your form bean, and have text fields to
>update the different properties.
>For example, if you have a property "header" that contains your HeaderVO:
><html:text property="header.myProperty"/>
>
>After submission, the VO in the form bean will contain the data entered by
>the user, without additional code.
>
>Hope it helps
>Patrice
>
>
>----- Original Message -----
>From: "Pat Quinn" <pat_quinn2009@hotmail.com>
>To: <struts-user@jakarta.apache.org>
>Sent: Monday, December 02, 2002 7:08 PM
>Subject: Struts Form Beans & Value Objects
>
>
> > I have an EJB which returns me a HeaderVO (Value Object) inside this VO
>I
> > have an Array List of LineVO's. As you'd except all my Value objects
are
> > Serializable. Ok now i want to display this data to my client so I will
>have
> > a header html table and a lines html table. My header and lines both
>contain
> > text fields to allow for client updates.
> >
> > Here's where i'm seeking some assistance: should I * Extract the data
>from
> > my headerVO and insert it into a FormBean and then store my linesVO
data
>as
> > a 2Dimensional Array in my form bean.
> >
> > Is there a better way to do this without writing extra code to deal
with
> > conversion between VO's and a Form Bean i.e. can i store the value
>objects
> > instead a form bean but yet allow for user updates to the data.
> >
> > Your ideas and suggestions would be gratefully appreciated.
> >
> >
> >
> >
> >
> >
> >
> > _________________________________________________________________
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