Re: [Springframework-developer] Declarative Validation Framework in Spring's Future?

[Thierry T. <te...@ya...>]

Matt and Michael,

Some works are made on commons validator and valang in
the spring modules project...
Thierry

--- "Michael E. Moores" <mm...@re...> a écrit:
> Is Valang abstracted from MVC and http requests?
> I need a validator that I can plug into my POJOs,
> which are app server
> classes,
> NOT web server classes.
> 
> Matt Raible wrote:
> 
> > Hey guys,
> >
> > I have the following section in one of my Spring
> Live chapters. I
> > haven't seen much activity on the "declarative
> validation" front in
> > Spring MVC - so I want to make sure this is still
> valid.
> >
> > Thanks,
> >
> > Matt
> >
> > *Spring’s Future Declarative Validation Framework
> > *At the time of this writing, Commons Validator is
> the only
> > declarative validation framework that's been
> released to support
> > Spring MVC. There is another declarative validator
> (the _Valang
> > Validator_) that's part of the Spring Modules
> project, but it hasn't
> > been released yet. As far as declarative
> validation being part of
> > Spring - there are plans for it, but it hasn't
> been developed yet. I
> > asked Keith Donald to provide me with a few
> details about it, and here
> > are the key features/differentiators he sent me:
> > • A simple, consistent interface for defining new
> validation rules
> > (rule providers simply implement a single "boolean
> test(argument)"
> > method).
> > • Support for bean property expressions (for
> example, minProperty must
> > be less than maxProperty). The property access
> strategy will be
> > pluggable and not limited to java beans (for
> example, allowing
> > map-backed storage, or buffered "form objects" on
> the rich client side
> > of the house).
> > • Support for complex nested expressions
> (and/or/not), and all
> > relational operators (>, >=, <, <=, !=, ==).
> > • Support for applying different sets of rules
> based on context or
> > use-case.
> > • A reporting subsystem capable of iterating over
> rule structures,
> > performing validation, and capturing/generating
> error message results.
> > This allows you to assemble complex rules
> on-the-fly without having to
> > hard code a lot of static messages; the reporter
> is capable of
> > generating rule messages from the underlying
> structures automatically.
> > • Report field typing hints (the rules associated
> with a field to let
> > the user know what they're expected to type).
> > • Integration with Spring Rich Client Platform
> (RCP) and Spring MVC
> > environments.
> 
> 
> 
>
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