1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one or more
3 * contributor license agreements. See the NOTICE file distributed with
4 * this work for additional information regarding copyright ownership.
5 * The ASF licenses this file to You under the Apache License, Version 2.0
6 * (the "License"); you may not use this file except in compliance with
7 * the License. You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17
18 package org.apache.commons.pipeline.validation;
19
20 import java.lang.annotation.ElementType;
21 import java.lang.annotation.Retention;
22 import java.lang.annotation.RetentionPolicy;
23 import java.lang.annotation.Target;
24
25 import org.apache.commons.pipeline.Stage;
26
27 /**
28 * This annotation is used to describe the objects produced by a {@link Stage}.
29 * If a stage produces the same types of objects that it consumes, it should
30 * be annotated with the {@link ProducesConsumed} annotation instead.
31 *
32 *
33 */
34 @Target(ElementType.TYPE)
35 @Retention(RetentionPolicy.RUNTIME)
36 public @interface ProducedTypes {
37 /**
38 * The type(s) of object produced by this {@link Stage}. Under ordinary
39 * circumstances, this array should only contain one element.
40 */
41 public Class<?>[] value();
42 }