[Help] Bean Validation

[grubi]

Hi,

I'm learning JSF 2 and the new features that are coming with this version. Currently I'm testing the new bean validation and I'm facing a problem I'm unable to solve. Maybe it's the correct behaviour but I'm not able to find helpful references...

I have a ViewScoped Managed Bean which contains a member variable of a custom class and in this class there is a variable named text with getter and setter and the validation constraint @Size(min=2). In a JSF document I'm using this variable in conjunction with a h:inputText.

When I submit the form I expect to get an validation error when the text-length is less than 2, but nothing happens. If I move the variable text and their methods directly into the managed bean, everything works just fine.

Is there any chance to validate even non managed-beans objects the same way as managed-beans by just annotating the class variables?

@ViewScoped

@Named

class MyBean implements Serializable

{

     private MyObj obj;

     public MyObj getObj()

     {

          return obj;

     }

     /* This would work...

     @Size(min=2)

     private String text;

     public String getText()

     {

          return text;

     }

     public void setText(String t)

     {

          text = t;

     }

     */

}

---------------------------------------

class MyObj

{

     @Size(min=2)

     private String text;

     public String getText()

     {

          return text;

     }

     public void setText(String t)

     {

          text = t;

     }

}

---------------------------------------

<h:form>

     <h:inputText value="#{myBean.obj.text}" id="text" />

     <!-- h:inputText value="#{myBean.text}" id="text" / -->

     <h:message for="text" />

     <h:commandButton value="send" />    

</h:form>

[hardy.ferentschik]

Have you tried placing @Valid onto field or getter of MyObj?

[grubi]

I already tried @Valid.

Edit:

I did some debugging and found the root cause of the problem. In my real application my field is a private one and starts with an underscore. I put the annotation on this field directly. But my getter was named without this underscore (_text vs. getText()) and the validator implementation performs an equals() on those two names (getText() will be used as text). So _text != text and no validation will be performed... Good to know but in the end it's a logic process. How should the implementation know that getText() is returning _text.^^

So at all others that stumble over this thread looking for an answer: Always annotate the getters or name the annotated variables the same as the getters

Now all I have to do is to find out, why I don't get the error message. But that might be a wrong config. Thanks anyway Hardy

[hardy.ferentschik]

Glad you found the answer :-)