Hi Igor, 
 
I have this same requirement, also in the context of dynamic forms. 
 
I think a simple #removeAllValidators() would do the trick without introducing 
ambiguity or any additional complexity. In v1.1.1 I end up reconstructing the 
component when, for example, I need to remove a TypeValidator. This can be a 
real pain. 
 
Haven't had a chance to check out IFormValidator, and it may do what I require. 
However, I don't see how a #removeAllValidators() could hurt either :).
 
Thanks, 
 
Roan

________________________________

From: [EMAIL PROTECTED] on behalf of Igor Vaynberg
Sent: Tue 4/25/2006 2:09 PM
To: [email protected]
Subject: Re: [Wicket-user] RE: Removing a Validator


but once you introduce the map you introduce the ambiguity of evaluation order 
as well and it makes things more complex to manage.

also once you allow removal you alse need to allow insertion. it keeps getting 
messier and messier for the end user. 

you can also potentially do what you want by overriding isrequired(), but you 
cannot then use the model of the component it depends on, only its input value.

i think a IFormValidator which delegates to a few IValidator is the cleanest 
way to go, but thats just my two cents. 

-Igor



On 4/25/06, Andrew Strickland <[EMAIL PROTECTED]> wrote: 

        My first thought was the component would have a Map of validators that 
you store by a validator name...that way you could add or remove like remove( 
IValidator.getName() )...also that way you could never end up with more than 
one of the same type of Validator on any given component. 
         
        Andy
        
        
        >How would you remove the validator? Would you do it by index or by 
instance?
        >Its not very clean either way. Check out IFormValidator, I think it 
fits 
        >your usecase better then an IValidator.
        
        >-Igor
        
        
        On 4/25/06, Andrew Strickland < [EMAIL PROTECTED] <mailto:[EMAIL 
PROTECTED]> > wrote:
        >
        
        > Was the capability added in 1.2 to remove Validators from a 
component?  I=
        f
        
        > not, are there any plans to add such a capability?
        >
        > When doing dynamic forms it is a huge convenience to be able to add 
and
        > remove validators based on a user selection on another field in the 
form. 
        >
        
        > An example: on my project some fields are required or not depending 
on th=
        e
        
        > classification of the system.  During account creation the user has 
the 
        > ability to choose which classification they are requesting their 
account =
        be
        > created for.  If they choose the more restrictive classification and 
then
        
        > change their mind and switch to the less restrictive some of the 
fields t= 
        hat
        > I added a validator to will now STILL have the RequiredValidator even 
tho=
        ugh
        
        > it is no longer a required field, and I have no way of removing the 
        > validator.
        >
        > Andy


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