| /* |
| * Copyright (c) 2008, 2019 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 - 2.1 |
| // Linda DeMichiel - 2.0 |
| |
| package javax.persistence; |
| |
| /** |
| * Defines the types of primary key generation strategies. |
| * |
| * @see GeneratedValue |
| * |
| * @since 1.0 |
| */ |
| public enum GenerationType { |
| |
| /** |
| * Indicates that the persistence provider must assign |
| * primary keys for the entity using an underlying |
| * database table to ensure uniqueness. |
| */ |
| TABLE, |
| |
| /** |
| * Indicates that the persistence provider must assign |
| * primary keys for the entity using a database sequence. |
| */ |
| SEQUENCE, |
| |
| /** |
| * Indicates that the persistence provider must assign |
| * primary keys for the entity using a database identity column. |
| */ |
| IDENTITY, |
| |
| /** |
| * Indicates that the persistence provider should pick an |
| * appropriate strategy for the particular database. The |
| * <code>AUTO</code> generation strategy may expect a database |
| * resource to exist, or it may attempt to create one. A vendor |
| * may provide documentation on how to create such resources |
| * in the event that it does not support schema generation |
| * or cannot create the schema resource at runtime. |
| */ |
| AUTO |
| } |