| /* |
| * 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.metamodel; |
| |
| /** |
| * Instances of the type <code>MapAttribute</code> represent |
| * persistent <code>java.util.Map</code>-valued attributes. |
| * |
| * @param <X> The type the represented Map belongs to |
| * @param <K> The type of the key of the represented Map |
| * @param <V> The type of the value of the represented Map |
| * |
| * @since Java Persistence 2.0 |
| * |
| */ |
| public interface MapAttribute<X, K, V> |
| extends PluralAttribute<X, java.util.Map<K, V>, V> { |
| |
| /** |
| * Return the Java type of the map key. |
| * @return Java key type |
| */ |
| Class<K> getKeyJavaType(); |
| |
| /** |
| * Return the type representing the key type of the map. |
| * @return type representing key type |
| */ |
| Type<K> getKeyType(); |
| } |