[osflash] XMLSchema -> ActionScript

[Antonio De Donatis]

    There was no mention of XML Schema there, although Howard mentioned the
term "schema" (lowercase).

        So, XmL is not XML and sChema is not Schema to you!
        Matters not.

  The concept/term 'schema' existed far before XML Schema was introduced and
its original meaning is still the most widely known.

    I figured out that he wanted to serialize XML into AS automatically.
    That is what XLEFF does in the case of the Component Architecture
classes (and more generically via the XModel class).

  No he doesnt want to serialize XML into AS. He wants to convert XML schema
types into AS types (specificaly VO classes). This is quite a different ball
game.
  XLEFF is converting strictly typed/validated XML into strictly defined AS
classes.

  see my next reply about VO classes.

    I see now that his original intention was literal (generate AS classes
from XML Schema sources).
    It is very ambitious, especially because there is no
similarity/correspondence between AS and XSD.

  Of course there are similarities. An XSD defines types and structures, as
does any OO programming language.

  I disagree. XSD is not an OO programming language and defines types and
structures in its own, very peculiar, way. Following your logic, it will
cost you less to find similarities between English and Chinese since they
are both used to communicate, as does any human language.


    Maybe, it could be helpful to start such project by producing an XSD of
ActionScript. Such definition would act as a sort of "Meta-Schema",
providing the necessary requirements of the intended "XSD to AS Class
generator".

  Why on earth would that be helpful? We are talking about converting schema
defined types into AS VO classes.

  The weight of being clear should be on the shoulders of whoever asks
first. I wonder how many, among the readers of this post, are familiar with
VO (Value Object?) classes. The concept comes from Java world and,
personally, I am still wondering if it is of any practical use within the AS
domain.

  However, coming to your question:
  The act of "converting schema defined types into AS VO classes" will
require defining and applying several conversion rules.
  You can either avoid documenting those rules/choices (raising the level of
chaos in the world) or store them somewhere.
  Storing them in an XSD is probably convenient since it is a formalism
already being used in this bespoken project.

  On 9/23/06, Antonio De Donatis <osflash at xleff.org> wrote:
    Hi there,

    Please note that I replied to the very first message, trying to help.
    There was no mention of XML Schema there, although Howard mentioned the
term "schema" (lowercase).

    I figured out that he wanted to serialize XML into AS automatically.
    That is what XLEFF does in the case of the Component Architecture
classes (and more generically via the XModel class).

    I see now that his original intention was literal (generate AS classes
from XML Schema sources).
    It is very ambitious, especially because there is no
similarity/correspondence between AS and XSD.

    Maybe, it could be helpful to start such project by producing an XSD of
ActionScript. Such definition would act as a sort of "Meta-Schema",
providing the necessary requirements of the intended "XSD to AS Class
generator".

    -----Original Message-----
    From: jtgxbass [mailto:jtgrassie at gmail.com]
    Sent: 22 September 2006 13:22
    To: Open Source Flash Mailing List; David Holroyd
    Subject: Re: [osflash] XMLSchema -> ActionScript



      Antonio:



        You may try XLEFF ( www.xleff.org), which is based on a mechanism
very
        similar to the one you are looking for.

      ?? That has nothing to do with what David is after.
      Though it does look neat ;)


      David:

        The thing that makes it a complex problem is that XMLSchema is
rather
        complex.  So, I'll just ignore anything that looks tricky for the
        moment.

      Yes an XML schema can become quite complex. But if they are being
authored for use by you, perhaps you could require certain constraints?




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