/*
 * Hibernate Validator, declare and validate application constraints
 *
 * License: Apache License, Version 2.0
 * See the license.txt file in the root directory or <http://www.apache.org/licenses/LICENSE-2.0>.
 */
package org.hibernate.validator.constraints;

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;

import java.lang.annotation.Documented;
import java.lang.annotation.Repeatable;
import java.lang.annotation.Retention;
import java.lang.annotation.Target;

import javax.validation.Constraint;
import javax.validation.Payload;

import org.hibernate.validator.constraints.ISBN.List;

Checks that the annotated character sequence is a valid
ISBN.
The length of the number and the check digit are both verified.
 The supported type is CharSequence. null is considered valid. 
 During validation all non ISBN characters are ignored. All digits and 'X' are considered to be valid ISBN characters. This is useful when validating ISBN with dashes separating parts of the number (ex. 978-161-729-045-9). 
Author:
Marko Bekhta
Since:
6.0.6/**
 * Checks that the annotated character sequence is a valid
 * <a href="https://en.wikipedia.org/wiki/International_Standard_Book_Number">ISBN</a>.
 * The length of the number and the check digit are both verified.
 * <p>
 * The supported type is {@code CharSequence}. {@code null} is considered valid.
 * <p>
 * During validation all non ISBN characters are ignored. All digits and 'X' are considered
 * to be valid ISBN characters. This is useful when validating ISBN with dashes separating
 * parts of the number (ex. {@code 978-161-729-045-9}).
 *
 * @author Marko Bekhta
 * @since 6.0.6
 */
@Documented
@Constraint(validatedBy = { })
@Target({ METHOD, FIELD, ANNOTATION_TYPE, CONSTRUCTOR, PARAMETER, TYPE_USE })
@Retention(RUNTIME)
@Repeatable(List.class)
public @interface ISBN {

	String message() default "{org.hibernate.validator.constraints.ISBN.message}";

	Class<?>[] groups() default { };

	Class<? extends Payload>[] payload() default { };

	Type type() default Type.ISBN_13;

	
Defines several @ISBN annotations on the same element. /**
	 * Defines several {@code @ISBN} annotations on the same element.
	 */
	@Target({ METHOD, FIELD, ANNOTATION_TYPE, CONSTRUCTOR, PARAMETER, TYPE_USE })
	@Retention(RUNTIME)
	@Documented
	public @interface List {

		ISBN[] value();
	}

	
Defines the ISBN length. Valid lengths of ISBNs are 10 and 13 which are represented as ISBN_10 and ISBN_13 respectively. /**
	 * Defines the ISBN length. Valid lengths of ISBNs are {@code 10} and {@code 13}
	 * which are represented as {@link Type#ISBN_10} and {@link Type#ISBN_13} respectively.
	 */
	enum Type {
		ISBN_10,
		ISBN_13
	}
}