01: /*
02: * Licensed to the Apache Software Foundation (ASF) under one
03: * or more contributor license agreements. See the NOTICE file
04: * distributed with this work for additional information
05: * regarding copyright ownership. The ASF licenses this file
06: * to you under the Apache License, Version 2.0 (the
07: * "License"); you may not use this file except in compliance
08: * with the License. You may obtain a copy of the License at
09: *
10: * http://www.apache.org/licenses/LICENSE-2.0
11: *
12: * Unless required by applicable law or agreed to in writing,
13: * software distributed under the License is distributed on an
14: * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15: * KIND, either express or implied. See the License for the
16: * specific language governing permissions and limitations
17: * under the License.
18: */
19: package org.apache.openjpa.persistence;
20:
21: import static java.lang.annotation.ElementType.TYPE;
22: import java.lang.annotation.Retention;
23: import static java.lang.annotation.RetentionPolicy.RUNTIME;
24: import java.lang.annotation.Target;
25: import javax.persistence.GenerationType;
26:
27: /**
28: * Describes how to generate a value for a field.
29: *
30: * @author Abe White
31: * @since 0.4.0
32: * @published
33: */
34: @Target({TYPE})
35: @Retention(RUNTIME)
36: public @interface DataStoreId {
37:
38: GenerationType strategy() default GenerationType.AUTO;
39:
40: String generator() default "";
41: }
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