RE: how to get attribute value

Hi Andreas,

I think the method you are looking for is one that you already know:
sfResolve().

ComponentDescription is similar in structure the SF components and
supports most of its methods for configuration manipulation.

When you use sfResolve() in a CD it has the same behavior that in a
component, resolving links and so on. It also "navigates" transparently
from CD to compononents to CD, in other words, through your
configuration data.

Julio

> -----Original Message-----
> From: smartfrog-developer-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org
[mailto:smartfrog-
> developer-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org] On Behalf Of Andreas
Unterkircher
> Sent: 21 February 2006 10:46
> To: smartfrog-developer-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org
> Subject: [Smartfrog-developer] how to get attribute value
> 
> 
> Hello,
> 
> I'm deveolping a component "RollbackSequence" which might have a
> description as follows (I omit testA's description):
> 
> sfConfig extends RollbackSequence {
>  action1 extends {
>   first extends testA {
>     message "first";
>   }
>   second extends testA {
>    message "second";
>   }
>   third extends testA {
>    message "third";
>   }
>  }
> }
> 
> Now in it's sfStart phase RollbackSequence should deploy one of the 3
> descriptions found in "action1" based on some additional information.
My
> problem is how to get the desrciption of first, second or third. In
> RollbackSequence's sfStart() I have the following code:
> 
> act = (ComponentDescription) actions.get(componentName);
> System.out.println(act.toString());
> if(act.sfContainsAttribute("first")) System.out.println("Contains
first");
> for(Iterator ii = act.sfAttributes();ii.hasNext();)
>   System.out.println(ii.next());
> 
> This gives
> 
> first extends  {
>   sfCodeBase "default";
>   sfClass "ch.cern.openlab.smartfrog.test.TestA";
>   sfExport false;
>   sfShouldTerminate true;
>   message "first";
> }
> second extends  {
>   sfCodeBase "default";
>   sfClass "ch.cern.openlab.smartfrog.test.TestA";
>   sfExport false;
>   sfShouldTerminate true;
>   message "second";
> }
> third extends  {
>   sfCodeBase "default";
>   sfClass "ch.cern.openlab.smartfrog.test.TestA";
>   sfExport false;
>   sfShouldTerminate true;
>   message "third";
> }
> 
> Contains first
> first
> second
> third
> 
> act is a ComponentDescription... how can I get the value for an
attribute
> (which describes a component I want to deploy) ? E.g. out of "first",
> "second", "third" I'd like to deploy "second". For
ComponentDescription I
> find the method sfAttributeKeyFor, but I would need somehow the
reverse of
> this. How can I solve this problem ? Thanks for your help !
> 
> Best regards,
> Andreas
> 
> --
> http://cern.ch/openlab
> 
> 
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