Cross field validation with Hibernate Validator (3.1.0.GA)

Question

How do we enforce cross field validation with hibernate validator 3.1.0.GA

create table user (id, start_date, end_date, ...) e.g. college graduation finishing date for a student should be greater than the graduation start date

How do we enforce this, so that the validation messages can be shown in the UI on save / update operations. The UI is built using JSF, Richfaces

Answer 1

You do this by creating a custom validator. There's more information in the documentation.

Answer 2

Try this:

public class User {

  private Date startDate = null;
  private Date endDate = null;

  @SuppressWarnings("unused")
  @AssertTrue(message="college graduation finishing date for a student should be greater than the graduation start date")
  private boolean dateValidation() {
    return this.startDate < this.endDate;
  }
}

Answer 3

See my duplicate question (and answer) in http://stackoverflow.com/questions/1972933/cross-field-validation-with-hibernate-validator-jsr-303

In short, create a custom class level validator that associates the class level ConstraintViolation to the specific fields being validated.

Answer 4

for this approach

@SuppressWarnings("unused")

@AssertTrue(message="college graduation finishing date for a student should be greater than the graduation start date") private boolean dateValidation() { return this.startDate < this.endDate; }

to be valid, it would need to conform to the standard bean specification, which means either a get/set/ or "is" prefix. isDateValid() would work-