| /* |
| * Copyright (c) 2008, 2018 Oracle and/or its affiliates. All rights reserved. |
| * |
| * This program and the accompanying materials are made available under the |
| * terms of the Eclipse Public License v. 2.0 which is available at |
| * http://www.eclipse.org/legal/epl-2.0, |
| * or the Eclipse Distribution License v. 1.0 which is available at |
| * http://www.eclipse.org/org/documents/edl-v10.php. |
| * |
| * SPDX-License-Identifier: EPL-2.0 OR BSD-3-Clause |
| */ |
| |
| // 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.FIELD; |
| import static java.lang.annotation.ElementType.METHOD; |
| import static java.lang.annotation.RetentionPolicy.RUNTIME; |
| |
| /** |
| * This annotation must be specified for persistent map keys of type |
| * {@link java.util.Date} and {@link java.util.Calendar}. It may only be |
| * specified for map keys of these types. |
| * |
| * <p> The <code>MapKeyTemporal</code> annotation can be applied to an |
| * element collection or relationship of type <code>java.util.Map</code> |
| * in conjunction with the <code>ElementCollection</code>, |
| * <code>OneToMany</code>, or <code>ManyToMany</code> annotation. |
| * |
| * <pre> |
| * Example: |
| * |
| * @OneToMany |
| * @MapKeyTemporal(DATE) |
| * protected java.util.Map<java.util.Date, Employee> employees; |
| * </pre> |
| * |
| * @since Java Persistence 2.0 |
| */ |
| @Target({METHOD, FIELD}) |
| @Retention(RUNTIME) |
| public @interface MapKeyTemporal { |
| |
| /** (Required) The type used in mapping |
| * <code>java.util.Date</code> or |
| * <code>java.util.Calendar</code>. |
| */ |
| TemporalType value(); |
| } |
| |