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    package org.apache.camel;
018    
019    import java.lang.annotation.ElementType;
020    import java.lang.annotation.Retention;
021    import java.lang.annotation.RetentionPolicy;
022    import java.lang.annotation.Target;
023    
024    /**
025     * Indicates that this method is to be used as a 
026     * <a href="http://activemq.apache.org/camel/recipient-list.html">Dynamic Recipient List</a> routing the incoming message
027     * to one or more endpoints.
028     *
029     * When a message {@link org.apache.camel.Exchange} is received from an {@link org.apache.camel.Endpoint} then the
030     * <a href="http://activemq.apache.org/camel/bean-integration.html">Bean Integration</a>
031     * mechanism is used to map the incoming {@link org.apache.camel.Message} to the method parameters.
032     *
033     * The return value of the method is then converted to either a {@link java.util.Collection} or array of objects where each
034     * element is converted to an {@link Endpoint} or a {@link String}, or if it is not a collection/array then it is converted
035     * to an {@link Endpoint} or {@link String}.
036     *
037     * Then for each endpoint or URI the message is forwarded a separate copy.
038     *
039     * @version $Revision: 1540 $
040     */
041    @Retention(RetentionPolicy.RUNTIME)
042    @Target({ElementType.FIELD, ElementType.METHOD, ElementType.CONSTRUCTOR })
043    public @interface RecipientList {
044    }