I have a problem with validation of nested models, look:
class A{
@NotNull
Integer i;
B b;
}
class B{
@NotNull
Integer j;
}
In spring controller:
@Valid @RequestBody...
It properly validate i, but not validate j. How to force Spring to validate arbitraly deep ?
And second thing:
Is it possible to do following validation: Object of class 'A' is proper only and only if exactly one of i an j is null.
class A{
Integer i;
Integer j;
}
Object graph validation is supported and you have to annotate B b with @Valid like below.
class A{
@NotNull
Integer i;
@Valid
B b;
}
Please refer https://docs.jboss.org/hibernate/stable/validator/reference/en-US/html_single/?v=5.3#section-object-graph-validation for more details.
For second part of you question, you can create a custom Validator class. You would also need a custom annotation for that Validator. You can check the details at documentation page here. A sample for custom Validator is here.
