How to disable cache-control ?

["Thalavoipuram, Kalyan" <Ka...@xpedior.com>]

 We could disable the caching on the client side 
 as follows ...
 
 httpServletResponse res;
 res.setHeader("Cache-Control", "no-cache");
 
I have written a Cocoon Producer  ( Pls. see code below ) which works fine
...
How do we disable the cache control in this. Pls. can anybody help!
 
public class testCocoon extends ProducerFromRequest {
 
  public String getPath ( javax.servlet.http.HttpServletRequest req ) {
    return "";
  }
 
  public java.io.Reader getStream( javax.servlet.http.HttpServletRequest req
) {
 
    System.out.println("Context Path is " + req.getContextPath());
    testData dbm= new testData(req);
    StringBuffer str = dbm.getXML();
 
    return new java.io.StringReader(str.toString());
  }
}