001/* 002 * Copyright 2002-2015 the original author or authors. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * https://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 */ 016 017package org.springframework.web.socket.sockjs.transport; 018 019import org.springframework.web.socket.WebSocketSession; 020 021/** 022 * SockJS extension of Spring's standard {@link WebSocketSession}. 023 * 024 * @author Juergen Hoeller 025 * @author Rossen Stoyanchev 026 * @since 4.0 027 */ 028public interface SockJsSession extends WebSocketSession { 029 030 /** 031 * Return the time (in ms) since the session was last active, or otherwise 032 * if the session is new, then the time since the session was created. 033 */ 034 long getTimeSinceLastActive(); 035 036 /** 037 * Disable the SockJS heartbeat, presumably because a higher-level protocol 038 * has heartbeats enabled for the session already. It is not recommended to 039 * disable this otherwise, as it helps proxies to know the connection is 040 * not hanging. 041 */ 042 void disableHeartbeat(); 043 044}