Hello Guys,
Anyone can talk about my message? It's a good idea or I'm crazy?
[]'s,
Regis
----- Original Message -----
From: "Regis Melo" <[EMAIL PROTECTED]>
To: "Struts Users Mailing List" <[EMAIL PROTECTED]>
Sent: Sunday, February 02, 2003 11:57 AM
Subject: Re: Validator and business rule
> Hello David,
>
> I think that the main problem in struts-validator is because is highly
> coupled with ActionForm. Ok, I can use commons-validator. But, my idea is:
>
> * Put the validation rules in only one place (a XML file that can be
> read and interpretated by struts and my business rule);
> * The validation rule also has the type of a column (indicating if is
> boolean, data, String, BigDecimal, ... );
> * The struts tags will generate JavaScript to validate the input of
> data;
> * My business rule will check if all data is ok again (because the
user
> can turn off JavaScript).
>
> My business rule generaly receives a Value Object to insert or update
> data. My VO is dynamic - I say which columns and rows they will have. If I
> know the type of data that came from ActionForm (I always use String in
> ActionForms) I can convert on fly the data between ActionForm and VO.
>
> Theres is a sample example:
>
> ----- Action ------
> MyValueObject vo = new MyValueObject( form ); // Works because
I
> will know the types of columns in ActionForm - it's defined in XML
> MyBusinessObject bo = new MyBusinessObject();
>
> bo.insert( vo );
>
> ----- MyBusinessObject -----
> public void insert( MyValueObject vo )
> {
> if not checkIfAlwaysIsOk( vo ) { throw new Exception( "..." ); }
>
> insertIntoDatabase( );
>
> // If a need to get some data from VO, I use - vo.get( lineNumber,
> columnNumber )
> }
>
> public boolean checkIfAlwaysIsOk( vo )
> {
> return Validator.checkIfRulesIsOk( vo, "file with xml
> definitions" );
> // Validator is a generic class that will be used by
> struts-validator and my business rule
> }
>
> Thanks,
>
> Regis Melo
> ----- Original Message -----
> From: "David Graham" <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>
> Sent: Saturday, February 01, 2003 7:03 PM
> Subject: Re: Validator and business rule
>
>
> > You can use the generic commons-validator in your business logic if you
> > want. The Struts version and the commons version can use the same xml
> > config file for the validation rules.
> >
> > David
> >
> >
> >
> >
> >
> >
> > >From: "Regis Melo" <[EMAIL PROTECTED]>
> > >Reply-To: "Struts Users Mailing List" <[EMAIL PROTECTED]>
> > >To: "Struts Users Mailing List" <[EMAIL PROTECTED]>
> > >Subject: Validator and business rule
> > >Date: Sat, 1 Feb 2003 18:23:00 -0300
> > >
> > >Hello,
> > >
> > > Why Struts-validator is so highly coupled with ActionForms? I think
> > >that is a good idea to use struts-validator to do some work in my
> business
> > >classes. How can I do that?
> > >
> > >Thanks,
> > >
> > >Regis Melo
> >
> >
> > _________________________________________________________________
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> >
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>
>
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