Feature suggestion - Use Hibernate validation framework with

[sguimont]

The Hibernate validation with Seam is very usefull because you don't need to add the validation rules within the presentation (facelets/JSF view).

Sometime, I cannot use an Entity bean with the @Valid annotation. So, I add fields in my Stateful session bean, but with this approach I need to add my validation everywhere and cannot reuse validation component easily.

It will be great, if we can use the same annotations from the Hibernate validation framework in that context too.

Here's an example:

@Stateful
@Name("damFinder")
@Interceptors(SeamInterceptor.class)
public class DamFinderImpl implements IDamFinder {
 private String code;

 @NotNull
 @Length(min = 1, max = 100)
 public String getCode() {
 return this.code;
 }

 public void setCode(String aCode) {
 this.code = aCode;
 }

 @IfInvalid(outcome = Outcome.REDISPLAY)
 public String search() {
 // DO THE SEARCH, and the fields are validated
 }

I don't know how much work this feature requires but I'm sure it will helps me to write my code faster and removes the code duplication.

We can push the feature a little further and adjust the maxlenght attribute of the JSF inputText tag the same way Hibernate adjust his the property mapping with annotations.

I know I'm a dreamer ;-) maybe one day!

[gavin.king]

You can absolutely do that today! Your code will work as written :-)

[sguimont]

Cool! Very Hot!

I did'nt realize that Seam was able to do this.

I think it will be good to explain this in the seam documentation. We can add the Hibernate validations annotations to any Seam components not only on Entity beans. The entire samples use annotations on Entity bean only.

Thanks!