Re: Writing my own Producer to generate dynamic XML- How do I pass parameters to a custom generator that extends Abstract Generator

[Geoff Howard]

Anuja Gokhale wrote:
thanx. I was able to write my own custom generator that works with static
data. 

I however need my generate to generate an XML document based on the user's
input (form data). How can I pass and retrieve request parameters to and
from my generator (My generator extends the AbstractGenerator..is this what
i should be using?)
Attached is the source for my simple generator...

public class MyGenerator extends AbstractGenerator {
  public void generate () throws IOException, SAXException,
    ProcessingException {
          RequestParameterModule requestData = new RequestParameterModule();
      String message = "<doc>" + requestData.getAttribute + "</doc>";
      XMLReader xmlreader = XMLReaderFactory.createXMLReader();
      xmlreader.setContentHandler(super.xmlConsumer);
      InputSource source = new InputSource(new StringReader(message));
      xmlreader.parse(source);
  }
}
http://cocoon.apache.org/2.1/tutorial/tutorial-generator.html has 
examples of retrieving request parameters.  Feel free to ask specific 
questions if that doesn't make sense.

Geoff

-----Original Message-----
From: Joerg Heinicke [mailto:[EMAIL PROTECTED]
Sent: Thursday, August 21, 2003 6:48 PM
To: [EMAIL PROTECTED]
Subject: Re: Writing my own Producer to generate dynamic XML
The component you search for is "generator" 
(http://cocoon.apache.org/2.1/userdocs/generators/generators.html). 
There are already different technologies generating XML from DB 
(http://cocoon.apache.org/2.1/userdocs/concepts/databases.html). Also 
search on http://wiki.cocoondev.org/ for more information.

Joerg

Anuja Gokhale wrote:


Hello,

My application needs to read information from a DB plus do other stuff and
then have this displayed in different views. For this, I was planning on
writing a Producer that generates my XML and then defining XSL transformer
to operate on this dynamic XML.
Here are my questions:
1) Should my producer implement the AbstractProducer interface (even
though

I may never use the HttpServletRequest and response objects to generate my
XML)
2) Where do I define my producer for cocoon? In the sitemap?
3) How can I ensure that this Producer gets called when I need to get my
dynamic XML data?
-Anuja


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