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From: "Carsten Ziegeler" <cziegeler@s-und-n.de>
To: <cocoon-users@xml.apache.org>
Subject: RE: Problem with ParameterSelector
Date: Wed, 10 Apr 2002 11:29:52 +0200
Message-ID: <GMEBIBHGAOFGJCDPJANDGEAKEBAA.cziegeler@s-und-n.de>
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Hi,

I'm not sure if I understand you correctly..but let's give it a try.

If you use something like this:
>   	<map:act type="XYTestAction" action="rlist">
>   	  <map:parameter name="method" value="rlist_method"/>
>     </map:act>

then you define a parameter for the action itself, this
means the act() method of the action gets this parameter.
This parameter is not available to any other component.

An action can return a Map (key-value-pairs) and this
information can be retrieved by all components nested 
inside the "map:act" tag, so

>     <map:act set="XY">
>       <map:select type="parameter">
>         <map:parameter name="parameter-selector-test" value="{method}"/>

would work, if some of your actions returned a map containing
a key "method" with the appropriate value.

Please note that it is "{method}" and not "{$method}", the Javadoc 
is unfortunately wrong.

HTH

Carsten

> -----Original Message-----
> From: Volker Schneider [mailto:volker.schneider@danet.de]
> Sent: Wednesday, April 10, 2002 11:18 AM
> To: cocoon-users@xml.apache.org
> Subject: RE: Problem with ParameterSelector
> 
> 
> Sorry, I mean request attributes...
> 
> -----Original Message-----
> From: Volker Schneider [mailto:volker.schneider@danet.de]
> Sent: Mittwoch, 10. April 2002 11:16
> To: cocoon-users@xml.apache.org
> Subject: RE: Problem with ParameterSelector - ask for a to tag to set
> request attributes
> 
> 
> Meanwhile I've found a workaround for this:
> 
> For setting parameters you can set request attributes within the 
> action and
> use the RequestAttributeSelector for selecting the pipeline. I think it
> could be helpful to write a special action which can set an arbitrary
> request attribute for this purpose, so that there will be a 
> mechanism to set
> request attributes inside the sitemap.
> 
> By the way, is there a tag like <parameter> for sitemap parameter 
> which can
> set a request parameter? Is it possible to provide this with the 
> new cocoon
> release?
> 
> Regards,
> - Volker -
> 
> -----Original Message-----
> From: Volker Schneider [mailto:volker.schneider@danet.de]
> Sent: Dienstag, 9. April 2002 14:00
> To: cocoon-users@xml.apache.org
> Subject: Problem with ParameterSelector
> 
> 
> Hi colleagues,
> 
> I have big problems to get the ParameterSelector working. I want to set a
> parameter inside an action set and execute different pipelines 
> dependent on
> this value. I looked into the documentation samples and into the
> ParameterSelector class itself and took the samples from there. I 
> spent many
> hours to get it working but it will not work :-(
> 
> Please help me, I can't believe that there isn't a way to do that with
> cocoon:
> 
>   <map:action-set name="XY">
>   	<map:act type="XYTestAction" action="rlist">
>   	  <map:parameter name="method" value="rlist_method"/>
>     </map:act>
> 
>   	<map:act type="XYTestAction2" action="rlist2">
>   	  <map:parameter name="method" value="rlist2_method"/>
>      </map:act>
>   </map:action-set>
> ...
>    <map:match pattern="route/submit_full">
>     <map:act set="XY">
>       <map:select type="parameter">
>         <map:parameter name="parameter-selector-test" value="{$method}"/>
> 
>         <map:when test="rlist_method">
> 	      <map:generate type="route"/>
>  	   	  <map:transform src="prototyp/routelist.xsl"/>
>               <map:serialize/>
>         </map:when>
> 
>         <map:otherwise>
> 	      <map:generate type="route"/>
>             <map:transform src="prototyp/routelisterr.xsl"/>
>             <map:serialize/>
>         </map:otherwise>
> 
>  	  </map:select>
>  	</map:act>
>    </map:match>
> 
> I tried the "parameter-selector-test"-value as {method} and {$method} as
> said in the class comment. Both does not work.
> 
> Who can help?
> 
> Best regards
> - Volker -
> 
> 
> 
> 
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