Re : Integrating Orbeon Forms with java local services in Spring

Thank you very much Erik,
I now have a good understanding of haw this could be done.

I have 2 more questions though :

1. I want to have some kind of "search engine" in my web forms showing in a popup, to help people fill out some fields (like a city search engine for example) and this search engine has to be implemented in java doing SQL searches in a database with filters according to the current user.
How would you add such a feature in an Orbeon XForms form ?

2. I want to have some questions showed in my web forms only according to an attribute in the user profile (for exemple, if "isAdmin==true"). How you implement this kind of customization ?

Could you point me to where I could find documentation and if possible examples of suche use cases.

Thanks a lot again !
Regards
Gilles


----- Message d'origine ----
De : Erik Bruchez <[hidden email]>
À : [hidden email]
Envoyé le : Vendredi, 26 Octobre 2007, 1h03mn 08s
Objet : Re: [ops-users] Integrating Orbeon Forms with java local services in Spring

Gilles Schlienger wrote:
 > Hi,
 >
 > I love the way Orbeon Forms handles web forms and I can see how it
 > could benefit in my project at the MVC level (model view controler).
 > But I need to use business services developped in java, storing data
 > in a relationnal database (MySQL), so I can create dashboards with
 > data gathered from complex SQL queries.
 >
 > My ideal scenario would be to have in my war:
 > - a package managing my web forms using Orbeon Forms
 > - an API to call my Spring local services (no web services, just
 > - POJO managed by Spring) so I could get the user information, and
 > - other things...
 >
 > And in my web application, a way to have JSP pages managed by Spring
 > MVC and web forms managed by Orbeon Forms.
 >
 > Is this feasible and if yes, where should I look ?

Definitely feasible.

Your XForms page can talk to XML pipelines indirectly using
submissions, or directly using the xxforms:call-xpl() XPath
function. A pipeline can call Java using the Java processor, the
delegation processor, or a custom processor.

   Java Processor
   http://www.orbeon.com/ops/doc/processors-java

   Delegation Processor
   http://www.orbeon.com/ops/doc/processors-delegation

   Processor API
   http://www.orbeon.com/ops/doc/reference-processor-api

You can even call Java from XPath expressions in XForms actions if you
really want to do that.

Also be sure to have a look at this:

   Using the Orbeon Forms XForms Engine with Java Applications
   http://www.orbeon.com/ops/doc/reference-xforms-java

-Erik

--
Orbeon Forms - Web Forms for the Enterprise Done the Right Way
http://www.orbeon.com/



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Gilles,

 > Thank you very much Erik,
 > I now have a good understanding of haw this could be done.
 >
 > I have 2 more questions though :
 >
 > 1. I want to have some kind of "search engine" in my web forms
 > showing in a popup, to help people fill out some fields (like a city
 > search engine for example) and this search engine has to be
 > implemented in java doing SQL searches in a database with filters
 > according to the current user.
 > How would you add such a feature in an Orbeon XForms form ?

I see that Hank answered a bit about the Java part of things.

For the UI part, have a look at the "Google Suggests" example. I think
it does something pretty close from what you are looking for.

 > 2. I want to have some questions showed in my web forms only
 > according to an attribute in the user profile (for exemple, if
 > "isAdmin==true"). How you implement this kind of customization ?

I see two ways:

1. load the user profile (or parts thereof) as XML into an XForms
    instance. From there, you can easily determine the visibility of
    parts of the UI based on the contents of that instance, using
    either the @relevant property, xforms:switch/xforms:case, or XPath
    conditions in xforms:group in the UI.

2. Make the decision server-side, and produce a different XForms based
    on the user profile. You could do this with XSLT.

I tend to prefer #1 in most situations.

-Erik

--
Orbeon Forms - Web Forms for the Enterprise Done the Right Way
http://www.orbeon.com/



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