| /** |
| * 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.camel; |
| |
| /** |
| * Callback for sending a exchange message to a endpoint using a producer. |
| * <p/> |
| * Using this callback as a template pattern ensures that Camel handles the resource handling and will |
| * start and stop the given producer, to avoid resource leaks. |
| * |
| * @version |
| */ |
| public interface ProducerCallback<T> { |
| |
| /** |
| * Performs operation on the given producer to send the given exchange. |
| * |
| * @param producer the producer, is newer <tt>null</tt> |
| * @param exchange the exchange, can be <tt>null</tt> if so then create a new exchange from the producer |
| * @param exchangePattern the exchange pattern, can be <tt>null</tt> |
| * @return the response |
| * @throws Exception if an internal processing error has occurred. |
| */ |
| T doInProducer(Producer producer, Exchange exchange, ExchangePattern exchangePattern) throws Exception; |
| } |