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1. Re: Seam-Struts integration
asookazian Aug 5, 2009 5:48 PM (in response to yk)I haven't used Struts with Seam projects but that approach sounds like a disaster waiting to happen. How many existing pages are in that app? Depending on the timeline and resources, you should highly consider refactoring the JSPs to Facelets/JSFs which is the recommended JEE 5 standard and what most Seam projects are using for the presentation/view layer these days. If you can continue with your approach, you'll be mixing an action-based framework (Struts) with a component-based framework (JSF) and either way you really do not want to be using JSP. The scriptlet coding becomes a nightmare as well as exception tracking (e.g. facelets in debug mode shows you the exact line number that caused the exception, not some seemingly random line number from a servlet). Don't forget the templating features of Facelets (well, I guess you have Struts Tiles) and the fact that you don't need to pre-compile them to servlets like you do with JSPs or suffer a performance hit on the first access.
Or maybe half the pages all Struts/JSP and the other half all Facelets/JSF if possible. Not sure mixing both view technologies is possible or recommended on the same page (but I guess if you're using JSP and no xhtml it might work).
I don't see a section covering Struts/Seam integration in the ref doc.
From SiA:
The SeamFilter can also wrap additional servlets such as Struts, Spring MVC, or DWR, allowing you to tap into
the Seam container from these third-party frameworks as needed.There was no Struts integration coverage in SiA.
Have you done a POC and discovered any integration issues?
In any event, if you go with Facelets/JSF, it will be a major re-write of the presentation layer (minimally) because of all the JSF and possible RichFaces/ajax4jsf tags and action handlers in backing beans, etc. that will very likely be required.
Remember, Seam is an integration framework that was designed to unify and extended JEE 5 (specifically JSF and EJB3) initially and now other presentation frameworks like Wicket and GWT and Flex are possibilities as well...
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2. Re: Seam-Struts integration
yk Aug 5, 2009 6:03 PM (in response to yk)I haven't used Struts with Seam projects but that approach sounds like a disaster waiting to happen
I completely agree with you. Infact, I already suggested to rewrite the entire app using seam. But, unfortunately, I was told that we have no time to redo everything...
thanks
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3. Re: Seam-Struts integration
asookazian Aug 5, 2009 6:13 PM (in response to yk)OTH, Spring 3 supports Struts integration with Web Flow:
SWF integrates with existing frameworks like Spring MVC, Struts, and JSF, in both servlet and
portlet environments. If you have a business process (or processes) that would benefit from a
conversational model as opposed to a purely request model, then SWF may be the solution.JBoss/Seam is shooting themselves in the foot in this regard by basically forcing app rewrites to adopt Seam if Seam/Struts integration is not possible, I have not heard of Seam/Struts integration examples, etc....
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4. Re: Seam-Struts integration
yk Sep 7, 2009 10:53 AM (in response to yk)hi again,
Is there any example of using seam together with struts please ?
In a jsp I have some struts code and I'm trying to include a seam page (.xhtml) using jsp:include page=
mypage.seam
but it doesn't work properly.thanks