/* * 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.cassandra.hints; import org.apache.cassandra.io.IVersionedSerializer; import org.apache.cassandra.io.util.DataInputPlus; import org.apache.cassandra.io.util.DataOutputPlus; import org.apache.cassandra.net.MessageOut; import org.apache.cassandra.net.MessagingService; /** * An empty successful response to a HintMessage. */ public final class HintResponse { public static final IVersionedSerializer<HintResponse> serializer = new Serializer(); static final HintResponse instance = new HintResponse(); static final MessageOut<HintResponse> message = new MessageOut<>(MessagingService.Verb.REQUEST_RESPONSE, instance, serializer); private HintResponse() { } private static final class Serializer implements IVersionedSerializer<HintResponse> { public long serializedSize(HintResponse response, int version) { return 0; } public void serialize(HintResponse response, DataOutputPlus out, int version) { } public HintResponse deserialize(DataInputPlus in, int version) { return instance; } } }