RE: xsp !!!

[Ray Martin]

Sirs,

 

For a place to put 'common things', I suggest a descriptor file - XML not XSP.  The tutorial that comes with Cocoon shows (slightly) how to use the descriptor file.

 

The descriptor file is the place to put parameters that you want to share between the web page designers on one side and the code developers and database folks on the other side.  In the tutorial, they also used the descriptor file to set constraints to do form validation, but if you do not require this feature just skip that part.

 

The descriptor file can be the "contract" between the different types of folks working on a project.  If you happen to be the only developer/designer on a small project, the descriptor file is still a very useful contract between components - one can always go to the descriptor file to get a quick glance at the parameters required for various modules either under development or as a history of what was developed.

 

Currently, I have only used the descriptor file to record and describe parameters of type string.  But, as I get better at Cocoon, I am reasonably certain that the descriptor file will become my "common" storage for everything - file pointers, parameters of any type, etc.

 

In fact, I believe that the descriptor file is so useful that it will become the "hub" of all my design and development work.  For example, we use Torque (an Apache Software Foundation project) to produce the database tables and accessor classes.  To do this, the developer creates a schema in XML using the descriptor file as a basis.  The middle tier developer uses the descriptor file to base his/her efforts.  And the page designer, uses the descriptor file to do their work.  The goal is to automate all of this work - take the human out of most of the effort.  (ps we hope to contribute this to the ASF, unless someone gets there before us and that is okay, too.)

 

With the descriptor file as the "hub", we would press the button and (using Ant and Maven and ...) the schema file is created, Torque is run, the middle tier code is "pre-generated" (all the sets and gets are in place - ready for the human to add the detailed methods), and the GUI for browsers and text for WAP devices is created in XML ready for Cocoon consumption.

 

So, anyway, the descriptor file is your "common" store area.

-----Original Message-----
From: Derek Hohls [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, November 27, 2002 5:00 AM
To: [EMAIL PROTECTED]
Subject: RE: xsp !!!

I'm not sure about this - but if you were to include these

in a logic sheet (as I suggested in another reply),

then Cocoon would take care it of for you.

>>> [EMAIL PROTECTED] 27/11/2002 12:01:17 >>>

as far as i understand, the cocoon mechanism does it for us but the java file i must precompile it. is it correct?

-----Original Message-----
From: Derek Hohls [mailto:[EMAIL PROTECTED]]
Sent: 27 November 2002 16:49
To: [EMAIL PROTECTED]
Subject: RE: xsp !!!

well - are you aware that xsp is *also* recompiled
every time you change the file!  (because that's
what it is converted into... a Java file, that must
be regenerated and recompiled before it can be
used.)

>>> [EMAIL PROTECTED] 27/11/2002 11:49:56 >>>

thnks
but i dont want to use java file coz it made me recompile everytime i
update the file.
so, cant i use with xsp?
cheers

-----Original Message-----
From: Ivan Luzyanin [mailto:[EMAIL PROTECTED]]
Sent: 27 November 2002 16:24
To: [EMAIL PROTECTED]
Cc: Hong Gia Dinh
Subject: Re: xsp !!!

> Hi all
> I got a problem and tried to solve it!
> i want to have a common 'common.xsp' file containing all the common
values
> and i have other personal files that uses all the common values!
> so how can i use it ?? can i include/import a xsp file in oter xsp
file?
> i tried to use aggregate but it doesn't work!
>
> can u all show me?
> Cheers
Place your common values into simple JavaClass file
"CommonConstants.java" and
then import one in any XSP:
<xsp:page>
<xsp:structure>
<xsp:import>&pkg;.CommonConstants</xsp:import>
</xsp:structure>
<xsp:logic>
        int foo = CommonConstants.BAR;
</xsp:logic>
</xsp:page>
Ivan.

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