Subversion Repositories WebE

//$Id: GeneratedValue.java 11282 2007-03-14 22:05:59Z epbernard $

package javax.persistence;

import static java.lang.annotation.ElementType.FIELD;

import static java.lang.annotation.ElementType.METHOD;

import java.lang.annotation.Retention;

import static java.lang.annotation.RetentionPolicy.RUNTIME;

import java.lang.annotation.Target;

/**

 * Provides for the specification of generation strategies for the values of primary keys.

 * The GeneratedValue annotation may be applied to a primary key property or field of an entity

 * or mapped superclass in conjunction with the Id annotation.

 *

 * @author Emmanuel Bernard

 */

@Target({METHOD, FIELD})

@Retention(RUNTIME)

public @interface GeneratedValue {

        /**

         * The primary key generation strategy that the persistence provider must use

         * to generate the annotated entity primary key.

         */

        GenerationType strategy() default GenerationType.AUTO;

        /**

         * The name of the primary key generator to use as specified in the SequenceGenerator or

         * TableGenerator annotation.

         *

         * Defaults to the id generator supplied by persistence provider.

         */

        String generator() default "";

}