javax.persistence.criteria.ListJoin Maven / Gradle / Ivy
/*******************************************************************************
* Copyright (c) 2008, 2009 Sun Microsystems. 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 2.0 - Version 2.0 (October 1, 2009)
* Specification available from http://jcp.org/en/jsr/detail?id=317
*
******************************************************************************/
package javax.persistence.criteria;
import java.util.List;
import javax.persistence.metamodel.ListAttribute;
/**
* The ListJoin interface is the type of the result of
* joining to a collection over an association or element
* collection that has been specified as a java.util.List.
*
* @param the source type of the join
* @param the element type of the target List
*
* @since Java Persistence 2.0
*/
public interface ListJoin
extends PluralJoin, E> {
/**
* Return the metamodel representation for the list attribute.
* @return metamodel type representing the List that is
* the target of the join
*/
ListAttribute getModel();
/**
* Create an expression that corresponds to the index of
* the object in the referenced association or element
* collection.
* This method must only be invoked upon an object that
* represents an association or element collection for
* which an order column has been defined.
* @return expression denoting the index
*/
Expression index();
}