Re: [Springframework-developer] Spring MVC and validation

[Steven D. <ste...@in...>]

I've had a couple of requests now to include support for annotations.  
Basically we could do something like this:


public @interface Validate {
     String constraint();
     String code();
     String message();
     String[] arguments();
}

So you could do:

package test;

public class MyClass {

     private String firstName = null;
     @Validate(
         constraint = "? not blank",
         code = "firstName_blank"
     )
     public String getFirstName() { return this.firstName; }
     public void setFirstName(String firstName) { this.firstName =  
firstName; }

     private String lastName = null;
     @Validate("? not blank") // would use code:  
test.MyClass_lastName_invalid
     public String getLastName() { return this.lastName; }
     public void setLastName(String lastName) { this.lastName =  
lastName; }
}

Any thoughts on this?

Steven Devijver
Senior consultant
@ Interface21
ste...@in...



On 12 Sep 2005, at 14:51, Sean Miller wrote:




> This looks like a really neat option for single-field validations;  
> is there an obvious way of handling multi-field validations as  
> annotations, like
>
> collision : (firstName is not blank or lastName is not blank) and  
> userid is not blank : 'Fill in either name or id'
>
> Cheers,
> Sean Miller.
>
> Thomas Van de Velde wrote:
>
>
>
>
>
>> I am wondering if it'd make sense to have the validation rules  
>> defined as annotations.
>> e.g.
>>
>> @RequiredField
>> @EmailAddress
>>
>> I've worked with forms that contains 2 000 + fields and  
>> maintaining external XML files is really cumbersome in such a  
>> case?  Any thoughts, pros/cons?
>>
>>
>>
>>
>
>
>
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