Using the session is in general not recommended, as that has some issues, so you are right to look for alternatives.
You can definitely pass information from instance to instance using XUpdate in the controller, for example:
<action when="/form/action = 'dothis'" action="oxf:/action/dothis.xpl">
<result when="/result-data">
<xu:append select="/form/data"><xu:copy-of select="document('#action')/result-data/*"/></xu:append>
</result>
</action>
The XUPdate code has access to document('#action') which is the
document output by the action, as well as document('#instance') which
is the instance of the initial page. The XUpdate code works on the
newly constructed instance of the destination page.Also, typically in the case of wizards, or multiple-page spanning data entry forms, you can use the approach of having a large instance progressively filled-out as the user navigates from page to page. This works well until you redirect to a page to another page, because redirects use GET, and OXF passes the instance on the URL in that case. If the instance is very large, this won't work because browsers have limitations on the size of URLs.
So with OXF 2.2, for large instances, you are stuck either using the session, or avoiding redirects (which also means avoiding <result page="..."> in the controller). OXF 2.5 solves this by providing a built-in way of passing large instances between pages.
-Erik
Peter Charles wrote:
> Hello, > > Is there any method other than using the session to pass information > between pages? > > For instance, have the updated xform from page one, be the sent as an > input to an xpl in page two. > > Thanks > > Peter
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