/** * * 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.hadoop.hbase.ipc; import org.apache.hadoop.classification.InterfaceAudience; import org.apache.hadoop.classification.InterfaceStability; /** * All custom RPC protocols to be exported by Coprocessors must extend this interface. * * <p> * <strong>Note that all callable methods must have a return type handled by * {@link org.apache.hadoop.hbase.io.HbaseObjectWritable#writeObject(java.io.DataOutput, Object, Class, org.apache.hadoop.conf.Configuration)}.</strong> * That is: * <ul> * <li>a Java primitive type ({@code int}, {@code float}, etc)</li> * <li>a Java {@code String}</li> * <li>a {@link org.apache.hadoop.io.Writable}</li> * <li>an array or {@code java.util.List} of one of the above</li> * </ul> * </p> * @deprecated since 0.96. Use {@link org.apache.hadoop.hbase.coprocessor.CoprocessorService} * instead. */ @InterfaceAudience.Public @InterfaceStability.Evolving @Deprecated public interface CoprocessorProtocol extends VersionedProtocol { public static final long VERSION = 1L; }