/*

  * 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

  *

  *     http://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 org.apache.commons.pipeline.validation;

 import java.lang.annotation.ElementType;

 import java.lang.annotation.Retention;

 import java.lang.annotation.RetentionPolicy;

 import java.lang.annotation.Target;

 import org.apache.commons.pipeline.Stage;

 /**

  * This marker annotation indicates that the {@link Stage} produces the same type

  * of object that is consumed (or any subtype thereof). This is used to allow

  * correct resolution of stage compatibility between different parts of a

  * pipeline when there are intervening generic pass-through stages such

  * as loggers, which can consume any type of object and produce the

  * same object unchanged.

  *

  * This annotation is used in lieu of the {@link Production} annotaion

  * and overrides it if both are present.

  *

  *

  */

 @Target(ElementType.TYPE)

 @Retention(RetentionPolicy.RUNTIME)

 public @interface ProducesConsumed { }