| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * https://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package javax.jdo.annotations; |
| |
| import java.lang.annotation.ElementType; |
| import java.lang.annotation.Retention; |
| import java.lang.annotation.RetentionPolicy; |
| import java.lang.annotation.Target; |
| |
| /** |
| * Annotation for the datastore identity of the class. |
| * Corresponds to the xml element "datastore-identity" of the "class" element. |
| * |
| * @version 2.1 |
| * @since 2.1 |
| */ |
| @Target(ElementType.TYPE) |
| @Retention(RetentionPolicy.RUNTIME) |
| public @interface DatastoreIdentity |
| { |
| /** |
| * Strategy to use when generating datastore identities |
| * @return Strategy to use when generating datastore identities |
| */ |
| IdGeneratorStrategy strategy() default IdGeneratorStrategy.UNSPECIFIED; |
| |
| /** Custom strategy to use to generate the value for the identity. |
| * If customStrategy is non-empty, then strategy must be UNSPECIFIED. |
| * @return the custom strategy |
| */ |
| String customStrategy() default ""; |
| |
| /** |
| * Name of sequence to use when the strategy involves sequences |
| * @return Name of sequence to use when the strategy involves sequences |
| */ |
| String sequence() default ""; |
| |
| /** |
| * Name of the column for the datastore identity |
| * @return Name of the column for the datastore identity |
| */ |
| String column() default ""; |
| |
| /** |
| * The column(s) making up the datastore identity. |
| * @return The column(s) making up the datastore identity. |
| */ |
| Column[] columns() default {}; |
| |
| /** Vendor extensions. |
| * @return the vendor extensions |
| */ |
| Extension[] extensions() default {}; |
| } |