Home Examples Tutorials Errata

/validator/MaxValidator.java package validator; import javax.validation.ConstraintValidator; import javax.validation.ConstraintValidatorContext; import org.hibernate.mapping.Property; public class MaxValidator implements ConstraintValidator<Max, Object> { double max; //part of the Validator<Annotation> contract, //allows to get and use the annotation values public void initialize(Max parameters) { max = parameters.value(); } //part of the property constraint contract public boolean isValid(Object value, ConstraintValidatorContext constraintContext) { if (value==null) return true; if ( value instanceof Number) { double valueRead = ((Number) value).doubleValue(); return valueRead <= max; } return false; } public void apply(Property arg0) { } }

Contact the author