| /* |
| * 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.nemo.runtime.executor.transfer; |
| |
| import java.io.IOException; |
| |
| /** |
| * Represents the output context during the data transfer between two tasks. |
| */ |
| public interface OutputContext extends AutoCloseable { |
| |
| /** |
| * Creates a new output stream to which the sender sends its data. |
| * @return output stream to which the sender sends its data. |
| * @throws IOException if a channel error occurs, or the context has already been closed. |
| */ |
| TransferOutputStream newOutputStream() throws IOException; |
| |
| /** |
| * Closes this output context. |
| * @throws IOException if any exception has occurred. For more information, see |
| * {@link org.apache.nemo.runtime.executor.transfer.ByteOutputContext.ByteOutputStream#close}. |
| */ |
| void close() throws IOException; |
| } |