[Laszlo-user] XML to Lazslo Object Mapping

[Francisco Jose Peredo]

Hi everyone!
I would like... for example...:

    * Instantiate directly dataset nodes to specific classes (for
      example to have an inheritance hierarchy between them)
    * To be able to have "calculated fields" in a dataset  (for example,
      a field that is the concatenation of two other fields, or the
      result of an operation, for example, the sum of the values of
      child nodes)
    * Have object notation: person.deparment.name (is it possible?)

Basically... what i want is to find the way to have some kind of data 
handling abstraction... (it seems that the dataset is for that... but 
guess I want to know mode about its capabilities)

My main problem... is that, currently if I want to write code to access 
data from SOAP, or plain XML or JMI, the code is very different in each 
case... and I would like to create some kind of abstraction layer, so 
that if at the beginning I use SOAP, and later I change to one of the 
others... I don't have to make lots of adjustments... I guess I am 
trying to create some kind of DAO/ORM framework for Laszlo... any hints?

Thanks a lot everybody for you answers!
bye



Tiago Cardoso escribió:
> Hello Francisco,
>
> I think that the dataset is evaluated and transformed in objects since 
> it has data.
>
> If you notice, they are all LzNodes.
> What do you want really to do ? Instantiate directly dataset nodes to 
> specific classes ?
>
> Take care,
>
> Tiago Cardoso
>
> On 4/4/07, *Francisco Jose Peredo* <fperedo at sefintab.gob.mx 
> <mailto:fperedo at sefintab.gob.mx>> wrote:
>
>     Hi!
>     Is there a way to "hide" the dataset, and present the XML inside the
>     dataset as a collection of Laszlo "objects"?
>     some kind of Object / DataSet Mapping? Can it be built? Is there an
>     example somewhere?
>     Thanks
>     bye
>
>

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