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

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// $Id: $
// EJB3 Specification Copyright 2004-2009 Sun Microsystems, Inc.
package javax.persistence.metamodel;

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

	/**
	 * Return the type representing the key type of the map.
	 *
	 * @return type representing key type
	 */
	Type getKeyType();
}