GWT JSR 303 client validation

Question

I\'m developing a GWT application with a Spring backend that uses JSR 303 validation. The application can go offline and use the browser HTML5/Gears database instead.

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Answer 1

GWT 2.5 has a new feature just for this : https://developers.google.com/web-toolkit/doc/latest/DevGuideValidation

It uses the Hibernate Validator.

1) You will need to extend AbstractGwtValidatorFactory and apply your bean e.g. :

public final class SampleValidatorFactory extends AbstractGwtValidatorFactory {

  /**
   * Validator marker for the Validation Sample project. Only the classes and groups listed
   * in the {@link GwtValidation} annotation can be validated.
   */
  @GwtValidation(Person.class)
  public interface GwtValidator extends Validator {
  }

  @Override
  public AbstractGwtValidator createValidator() {
    return GWT.create(GwtValidator.class);
  }
}

2) Then add this to your gwt.xml :

3) Validate your bean

Validator validator = Validation.buildDefaultValidatorFactory().getValidator();
Set> violations = validator.validate(person);