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Subject: Flowscript Continuation ID parameter
Date: Tue, 12 Jun 2007 08:40:48 -0500
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Thread-Topic: Flowscript Continuation ID parameter
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From: "Schmitz, Jeffrey A" <Jeffrey.A.Schmitz@boeing.com>
To: <users@cocoon.apache.org>
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Hello,
   I see how the continuration ID can be accessed from within a .jx file
as follows:

  <form method=3D"post" action=3D"${cocoon.continuation.id}.kont">

As long as the .jx file is processed by the JXTemplateGenerator, e.g.  =20

    <map:match pattern=3D"*.jx">
      <map:generate type=3D"jx" src=3D"documents/{1}.jx"/>
      <map:serialize type=3D"xhtml"/>
    </map:match>

However, as part of my page "flow" I want to invoke an already existing
transform that uses the file generator (not the JXTemplateGenerator),
after which I want to re-enter my flowscript.  My solution is to
manually pass the continuation ID as a parameter (parameter 4) to the
existing sitemap pipeline entry for my current transform as follows:

     var uri =3D inputType + "In/" + inputFile + "/" + inputType +
"In.trans/" + cocoon.continuation.id;
     cocoon.sendPageAndWait(uri);

This URI matches the following, non JXTemplateGenerator pipline, the
fourth parameter being the continuation ID, which in turn is passed into
the xsl/importResult.xsl script:

      <map:match pattern=3D"*In/*/*.trans/*" >
         <map:generate src=3D"inputs/{2}.xml" />
         <map:transform src=3D"xsl/{1}InAdapter.xsl">
         </map:transform>
         <map:transform src=3D"xsl/updateNeutralRefs.xsl"/>
         <map:transform type=3D"PersistModelTrans">
           <map:parameter name=3D"saveToFile" value=3D"true"/>
           <map:parameter name=3D"saveToDB" value=3D"true"/>
           <map:parameter name=3D"dataFormat" value=3D"Neutral"/>
           <map:parameter name=3D"passThrough" value=3D"false"/>
         </map:transform>
         <map:transform src=3D"xsl/importResult.xsl">
           <map:parameter name=3D"continueID" value=3D"{4}"/>
         </map:transform>
         <map:serialize type=3D"xhtml"/>
      </map:match>

And then I use the continuation ID parameter in the return page xsl
(xsl/importResult.xsl) as follows to create a submit action that will
re-invoke my flowscript from the previous continuation point:

<xsl:stylesheet xmlns:xsl=3D"http://www.w3.org/1999/XSL/Transform"
                version=3D"2.0" >
 <xsl:param name=3D"continueID"/>

   <form method=3D"post" action=3D"{$continueID}.kont">

Is there anything wrong with this approach (it seems to work)?  Is there
a better way?

Thanks,
Jeff


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