001    /*
002     * Licensed to the Apache Software Foundation (ASF) under one or more
003     * contributor license agreements.  See the NOTICE file distributed with
004     * this work for additional information regarding copyright ownership.
005     * The ASF licenses this file to You under the Apache License, Version 2.0
006     * (the "License"); you may not use this file except in compliance with
007     * the License.  You may obtain a copy of the License at
008     *
009     *     http://www.apache.org/licenses/LICENSE-2.0
010     *
011     * Unless required by applicable law or agreed to in writing, software
012     * distributed under the License is distributed on an "AS IS" BASIS,
013     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014     * See the License for the specific language governing permissions and
015     * limitations under the License.
016     */
017    
018    package org.apache.commons.pipeline.validation;
019    
020    import java.lang.annotation.ElementType;
021    import java.lang.annotation.Retention;
022    import java.lang.annotation.RetentionPolicy;
023    import java.lang.annotation.Target;
024    
025    import org.apache.commons.pipeline.Stage;
026    
027    /**
028     * This annotation is used to describe the production of a {@link Stage} 
029     * for a specific branch pipeline.
030     *
031     *
032     */
033    @Target(ElementType.TYPE)
034    @Retention(RetentionPolicy.RUNTIME)
035    public @interface ProductionOnBranch {
036        /**
037         * The string key for the branch pipeline in question.
038         */
039        public String branchKey();
040        
041        /**
042         * The types of objects produced for the branch.
043         */
044        public Class<?>[] producedTypes();
045    }