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
/*******************************************************************************
 * 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.metamodel;

Instances of the type MapAttribute represent
persistent java.util.Map-valued attributes.
Type parameters:
<X> – The type the represented Map belongs to
<K> – The type of the key of the represented Map
<V> – The type of the value of the represented Map
Since:
Java Persistence 2.0/**
 * 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.
Returns:
Java key type/**
     * 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.
Returns:
type representing key type/**
     * Return the type representing the key type of the map.
     * @return type representing key type
     */
    Type<K> getKeyType();
}