/******************************************************************************* | |
* 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; | |
/** | |
* The <code>TupleElement</code> interface defines an element that is returned in | |
* a query result tuple. | |
* @param <X> the type of the element | |
* | |
* @see Tuple | |
* | |
* @since Java Persistence 2.0 | |
*/ | |
public interface TupleElement<X> { | |
/** | |
* Return the Java type of the tuple element. | |
* @return the Java type of the tuple element | |
*/ | |
Class<? extends X> getJavaType(); | |
/** | |
* Return the alias assigned to the tuple element or null, | |
* if no alias has been assigned. | |
* @return alias | |
*/ | |
String getAlias(); | |
} |