Java tutorial
/* * Copyright 2012 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.http.websocketx; import io.netty.buffer.ByteBuf; import io.netty.buffer.Unpooled; /** * Web Socket frame containing binary data. */ public class PingWebSocketFrame extends WebSocketFrame { /** * Creates a new empty ping frame. */ public PingWebSocketFrame() { super(true, 0, Unpooled.buffer(0)); } /** * Creates a new ping frame with the specified binary data. * * @param binaryData * the content of the frame. */ public PingWebSocketFrame(ByteBuf binaryData) { super(binaryData); } /** * Creates a new ping frame with the specified binary data. * * @param finalFragment * flag indicating if this frame is the final fragment * @param rsv * reserved bits used for protocol extensions * @param binaryData * the content of the frame. */ public PingWebSocketFrame(boolean finalFragment, int rsv, ByteBuf binaryData) { super(finalFragment, rsv, binaryData); } @Override public PingWebSocketFrame copy() { return (PingWebSocketFrame) super.copy(); } @Override public PingWebSocketFrame duplicate() { return (PingWebSocketFrame) super.duplicate(); } @Override public PingWebSocketFrame retainedDuplicate() { return (PingWebSocketFrame) super.retainedDuplicate(); } @Override public PingWebSocketFrame replace(ByteBuf content) { return new PingWebSocketFrame(isFinalFragment(), rsv(), content); } @Override public PingWebSocketFrame retain() { super.retain(); return this; } @Override public PingWebSocketFrame retain(int increment) { super.retain(increment); return this; } @Override public PingWebSocketFrame touch() { super.touch(); return this; } @Override public PingWebSocketFrame touch(Object hint) { super.touch(hint); return this; } }