Java tutorial
/* * Copyright 2014 The Netty Project * * The Netty Project 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 io.netty.handler.codec.mqtt; import io.netty.util.internal.StringUtil; /** * Variable Header of the {@link MqttPublishMessage} */ public final class MqttPublishVariableHeader { private final String topicName; private final int packetId; public MqttPublishVariableHeader(String topicName, int packetId) { this.topicName = topicName; this.packetId = packetId; } public String topicName() { return topicName; } /** * @deprecated Use {@link #packetId()} instead. */ @Deprecated public int messageId() { return packetId; } public int packetId() { return packetId; } @Override public String toString() { return new StringBuilder(StringUtil.simpleClassName(this)).append('[').append("topicName=") .append(topicName).append(", packetId=").append(packetId).append(']').toString(); } }