| /* |
| * 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.criteria; |
| |
| /** |
| * The <code>CommonAbstractCriteria</code> interface defines functionality |
| * that is common to both top-level criteria queries and subqueries as |
| * well as to update and delete criteria operations. |
| * It is not intended to be used directly in query construction. |
| * |
| * <p> Note that criteria queries and criteria update and delete operations |
| * are typed differently. |
| * Criteria queries are typed according to the query result type. |
| * Update and delete operations are typed according to the target of the |
| * update or delete. |
| * |
| * @since Java Persistence 2.1 |
| */ |
| public interface CommonAbstractCriteria { |
| |
| /** |
| * Create a subquery of the query. |
| * @param type the subquery result type |
| * @return subquery |
| */ |
| <U> Subquery<U> subquery(Class<U> type); |
| |
| /** |
| * Return the predicate that corresponds to the where clause |
| * restriction(s), or null if no restrictions have been |
| * specified. |
| * @return where clause predicate |
| */ |
| Predicate getRestriction(); |
| |
| } |