javax.persistence.FieldResult Maven / Gradle / Ivy

Show more of this group Show more artifacts with this name
Show all versions of hibernate-jpa-2.0-api Show documentation

Hibernate definition of the Java Persistence 2.0 (JSR 317) API.

There is a newer version: 1.0.1.Final

Show newest version

// $Id: FieldResult.java 17752 2009-10-15 01:19:21Z [email protected] $
// EJB3 Specification Copyright 2004-2009 Sun Microsystems, Inc.
package javax.persistence;

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

/**
 * Is used to map the columns specified in the SELECT list
 * of the query to the properties or fields of the entity class.
 *
 *  *
 * Example:
 *   Query q = em.createNativeQuery(
 *       "SELECT o.id AS order_id, " +
 *           "o.quantity AS order_quantity, " +
 *           "o.item AS order_item, " +
 *         "FROM Order o, Item i " +
 *         "WHERE (order_quantity > 25) AND (order_item = i.id)",
 *       "OrderResults");
 *
 *   @SqlResultSetMapping(name="OrderResults",
 *       entities={
 *           @EntityResult(entityClass=com.acme.Order.class, fields={
 *               @FieldResult(name="id", column="order_id"),
 *               @FieldResult(name="quantity", column="order_quantity"),
 *               @FieldResult(name="item", column="order_item")})
 *       })
 * 
 *
 * @since Java Persistence 1.0
 */
@Target({})
@Retention(RUNTIME)

public @interface FieldResult {

    /** Name of the persistent field or property of the class. */
    String name();

    /**
     * Name of the column in the SELECT clause - i.e., column
     * aliases, if applicable.
     */
    String column();
}