/* * 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 javax.websocket; public abstract class Endpoint { /** * Event that is triggered when a new session starts. * * @param session The new session. * @param config The configuration with which the Endpoint was * configured. */ public abstract void onOpen(Session session, EndpointConfig config); /** * Event that is triggered when a session has closed. * * @param session The session * @param closeReason Why the session was closed */ public void onClose(Session session, CloseReason closeReason) { // NO-OP by default } /** * Event that is triggered when a protocol error occurs. * * @param session The session. * @param throwable The exception. */ public void onError(Session session, Throwable throwable) { // NO-OP by default } }