shopping cart : creating a new context

[julien bloit]

Hi all,   I want to implement a rather classical type of webapp where the user browses a catalog, adds items to its shopping cart, and logs in or registers when he's ready to buy the items from his cart.   I browsed through the mailing list archive and it seems I could proceed using the session transformer.   Here's a snippet of my sitemap :     <map:pipeline>    <map:match pattern="add_item/*">     <map:generate src=""/>     <map:transform src="">      <map:parameter name="item_id" value="{1}"/>     </map:transform>     <map:transform type="session"/>     <map:serialize>    </map:match>   </map:pipeline>   The cart.xml is : <?xml version="1.0" encoding="ISO-8859-1"?> <cart/>   And this is the create_context.xsl : <?xml version="1.0"?> <xsl:stylesheet version="1.0"                 xmlns:xsl="http://www.w3.org/1999/XSL/Transform"                 xmlns:session="http://cocoon.apache.org/session/1.0"> <xsl:param name="item_id"/> <xsl:template match="cart">  <resource xmlns:session="http://cocoon.apache.org/session/1.0">    <session:createcontext name="mycart"/>    <session:setxml context="mycart" path="/">        <cart>            <item_id><xsl:value-of select="$item_id"/></item_id>        </cart>    </session:setxml>   <session:getxml context="mycart" path="/"/>  </resource> </xsl:template> </xsl:stylesheet>   I then try to access the context data using the following xsp in a different pipeline : <?xml version="1.0"?> <xsp:page language="java" xmlns:xsp="http://apache.org/xsp" xmlns:xsp-session-fw="http://apache.org/xsp/session-fw/1.0"> <message> <xsp-session-fw:getxml context="mycart" path="/"/> </message> </xsp:page> But I get an error with the following message : "org.apache.cocoon.ProcessingException: SessionManager.getContextFragment: Context 'mycart' not found."   Aside from knowing where the error might come from, I'd like to know if this seems a correct way to proceed to store user data while he's not logged yet.   many many thanks for your thoughts! Cheers, Julien