package org.hibernate.validator.referenceguide.chapter02.typeargument.custom;
import java.lang.annotation.Documented;
import java.lang.annotation.Retention;
import java.lang.annotation.Target;
import javax.validation.Constraint;
import javax.validation.ConstraintValidator;
import javax.validation.ConstraintValidatorContext;
import javax.validation.Payload;
import static java.lang.annotation.ElementType.ANNOTATION_TYPE;
import static java.lang.annotation.ElementType.CONSTRUCTOR;
import static java.lang.annotation.ElementType.FIELD;
import static java.lang.annotation.ElementType.METHOD;
import static java.lang.annotation.ElementType.PARAMETER;
import static java.lang.annotation.ElementType.TYPE_USE;
import static java.lang.annotation.RetentionPolicy.RUNTIME;
@Documented
@Constraint(validatedBy = { MinTorque.MinTorqueValidator.class })
@Target({ METHOD, FIELD, ANNOTATION_TYPE, CONSTRUCTOR, PARAMETER, TYPE_USE })
@Retention(RUNTIME)
public @interface MinTorque {
long value();
String message() default "{org.hibernate.validator.referenceguide.chapter02.typeargument.MinTorque.message}";
Class<?>[] groups() default { };
Class<? extends Payload>[] payload() default { };
class MinTorqueValidator implements ConstraintValidator<MinTorque, Gear> {
private long min;
@Override
public void initialize(MinTorque annotation) {
this.min = annotation.value();
}
@Override
public boolean isValid(Gear gear, ConstraintValidatorContext context) {
if ( gear == null ) {
return true;
}
return gear.getTorque() > min;
}
}
}