Form entry/exit

[Ha...@mummert.de]

I have major problems of prepopulating a form. Currently I have 3 different
action classes for 40 different forms, each with its own form class. The
form exit is well covered by Struts with the "validate"-method. But there
seems to be no form "entry" method. So I tried to use the
"validate"-method:

String formrequest = null ;

private ActionErrors
entry( ActionMapping mapping, HttpServletRequest request )
      {
      // Some entry code for prepopulation
      }

public ActionErrors
validate( ActionMapping mapping, HttpServletRequest request )
      {
      //----- Coming from outside
      if ( formrequest == null )
            return entry ( mapping, request );
      String req = formrequest ;
      formrequest = null ;
      request.removeAttribute ( Constants.KEY_FORMREQUEST );

Unfortunately, "request.removeAttribute" seems to do just nothing ?!?

The best way would be to offer an "entry"-method to pair the validate. Is
there any such planning going on?

Hajo Lemcke



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AW: Form entry/exit

[Axel Stahlhut <as...@neusta.de>]

Hi Hajo. 

For what you call "entry" you can take the reset(...) method. It is
called even before validate. 
Request.removeAttribute removes an attribute from tzhe attribute-table.
Attributes are a table of objects within the request, while parameter is
a list of the parsed request paramters. Attribute and Parameter are not
the same. For paramterlist there is no method exposed to remove single
Attributes.

Regards Axel



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[mailto:user-return-111854-astahlhut=neusta.de@struts.apache.org] Im
Auftrag von Hajo.Lemcke@mummert.de
Gesendet: Montag, 26. April 2004 09:25
An: user@struts.apache.org
Betreff: Form entry/exit


I have major problems of prepopulating a form. Currently I have 3
different action classes for 40 different forms, each with its own form
class. The form exit is well covered by Struts with the
"validate"-method. But there seems to be no form "entry" method. So I
tried to use the
"validate"-method:

String formrequest = null ;

private ActionErrors
entry( ActionMapping mapping, HttpServletRequest request )
      {
      // Some entry code for prepopulation
      }

public ActionErrors
validate( ActionMapping mapping, HttpServletRequest request )
      {
      //----- Coming from outside
      if ( formrequest == null )
            return entry ( mapping, request );
      String req = formrequest ;
      formrequest = null ;
      request.removeAttribute ( Constants.KEY_FORMREQUEST );

Unfortunately, "request.removeAttribute" seems to do just nothing ?!?

The best way would be to offer an "entry"-method to pair the validate.
Is there any such planning going on?

Hajo Lemcke



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