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!
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