Java tutorial
/******************************************************************************* * Copyright (c) 2008 - 2013 Oracle Corporation. All rights reserved. * * This program and the accompanying materials are made available under the * terms of the Eclipse Public License v1.0 and Eclipse Distribution License v. 1.0 * which accompanies this distribution. * The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html * and the Eclipse Distribution License is available at * http://www.eclipse.org/org/documents/edl-v10.php. * * Contributors: * Linda DeMichiel - Java Persistence 2.1 * Linda DeMichiel - Java Persistence 2.0 * ******************************************************************************/ package javax.persistence; import java.lang.annotation.Target; import java.lang.annotation.Retention; import static java.lang.annotation.ElementType.TYPE; import static java.lang.annotation.RetentionPolicy.RUNTIME; /** * Specifies multiple secondary tables for an entity. * * <pre> * Example 1: Multiple secondary tables assuming primary key columns are named the same in all tables. * * @Entity * @Table(name="EMPLOYEE") * @SecondaryTables({ * @SecondaryTable(name="EMP_DETAIL"), * @SecondaryTable(name="EMP_HIST") * }) * public class Employee { ... } * * * Example 2: Multiple secondary tables with differently named primary key columns. * * @Entity * @Table(name="EMPLOYEE") * @SecondaryTables({ * @SecondaryTable(name="EMP_DETAIL", * pkJoinColumns=@PrimaryKeyJoinColumn(name="EMPL_ID")), * @SecondaryTable(name="EMP_HIST", * pkJoinColumns=@PrimaryKeyJoinColumn(name="EMPLOYEE_ID")) * }) * public class Employee { ... } * </pre> * * @since Java Persistence 1.0 */ @Target(TYPE) @Retention(RUNTIME) public @interface SecondaryTables { /** (Required) The secondary tables for an entity. */ SecondaryTable[] value(); }