Hello,
i have a class that conatin another class object and i want to add a validation in filed inside the child object becuase just it required on this parent object :

code :
class Parent{

@NotEmpty
String field;

Child child;
}

class child{
String name;
}

how i can add validation to the child bean from parent class

Regards
Wish79

Object graph validation (http://beanvalidation.org/1.1/spec/#constraintdeclarationvalidationprocess-requirements-graphvalidation) might be what you're after. Adding @Valid to your Child reference causes the child object to be validated when validating a Parent instance:



Hth,

--Gunnar

But in my Case the Child object dose not have any bean annotation because it is just i have to validate it in the parent bean , how i can do that.

I'm not following, what do you want to validate then? Do you want to check that the reference to Child is not null? If so, add @NotNull to the field. Otherwise I'd need some more details on what you actually want to achieve.

--Gunnar

Parent Class {
Child myChild;
}

Child Class{
String name;
}

how i to check the child.name is not empty from Parent class , i do not want to add @NotEmpty on Child class , my question how do that from class

Thank
Wish79

Bean Validation works by putting constraints directly to the concerned properties, types etc.

If you only want to validate @NotEmpty on the Child#name field if the Child object is referenced by a Parent object but not in other cases, you may do so using the group conversion feature from Bean Validation 1.1 or using the HV-specific default group sequence provider feature when using Bean Validation 1.0 / HV 4.x as described in this thread: https://forum.hibernate.org/viewtopic.php?f=9&t=1025406&p=2467709&hilit=convertgroup#p2467709

--Gunnar

but i have a problem which is always the subclass validation fire on parent class without i add @valid , Why ? i.e(as i understand it fire just if i add @valid am i true ?)

Regards
Wish79