Examples with Validator com.vaadin.flow.data.binder.Validator used on opensource projects

Example 1 with Validator

use of com.vaadin.flow.data.binder.Validator in project flow by vaadin.

the class BeanValidator method apply.

/**
 * Validates the given value as if it were the value of the bean property
 * configured for this validator. Returns {@code Result.ok} if there are no
 * JSR-303 constraint violations, a {@code Result.error} of chained
 * constraint violation messages otherwise.
 * <p>
 * Null values are accepted unless the property has an {@code @NotNull}
 * annotation or equivalent.
 *
 * @param value
 *            the input value to validate
 * @param context
 *            the value context for validation
 * @return the validation result
 */
@Override
public ValidationResult apply(final Object value, ValueContext context) {
    Set<? extends ConstraintViolation<?>> violations = getJavaxBeanValidator().validateValue(beanType, propertyName, value);
    Locale locale = context.getLocale().orElse(Locale.getDefault());
    Optional<ValidationResult> result = violations.stream().map(violation -> ValidationResult.error(getMessage(violation, locale))).findFirst();
    return result.orElse(ValidationResult.ok());
}