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From Thomas Andraschko <zoi...@googlemail.com>
Subject Re: Best practices for validating an complete object/entity
Date Wed, 16 Nov 2011 16:54:05 GMT
Hi Gerhard,

thanks for your reply.

Of course but the feature i missing is: how can the #{bean.entity} be
validated automatically?
Because it's not binded with an inputField, it will not be automatically be
validated within the Process Validations phase.

Thanks,
Thomas

2011/11/16 Gerhard Petracek <gerhard.petracek@gmail.com>

> hi thomas,
>
> extval as well as codi allow dependency injection in constraint-validators.
> -> you can inject and call e.g. a service or repository or any other bean
> to check if a name already exists (see e.g. [1]).
>
> regards,
> gerhard
>
> [1]
>
> https://cwiki.apache.org/confluence/display/EXTCDI/BV+Usage#BVUsage-DependencyInjectioninConstraintValidators
>
> http://www.irian.at
>
> Your JSF powerhouse -
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>
> 2011/11/16 Thomas Andraschko <zoigln@googlemail.com>
> >
> > Hi,
> >
> > i have some input fields for an entity and i want to check if the entered
> > name does already exist.
> > So i tried to create an BV constraint for the name property but i also
> need
> > the parent entity object (for checking if the entity is transient or
> not).
> > In a BV validator i can't get the the parent entity - so it's useless.
> > The other idea was to attach it on bean property level for the entity:
> >
> > @UniqueName
> > private Entity entity.
> >
> > <p:inputText value=#{bean.entity.name}" />
> >
> > But this wont validate the entity.
> > I thought about an custom converter and binding the #{bean.entity}.
> > The problem is, in getAsObject i must load the entity by the name and the
> > bean.entity will be overwritten. Or not?
> >
> > How can i prevent that the #{bean.entity} will be overwritten?
> > Is there another solution for validate the entity?
> >
> > I also use CODI and ExtVal.
> >
> > Thanks!
> >
> > Best regards,
> > Thomas
>

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