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 /*
  * 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.

Parameters:
session The new session.
    public abstract void onOpen(Session sessionEndpointConfig config);

    
Event that is triggered when a session has closed.

Parameters:
session The session
closeReason Why the session was closed
    public void onClose(Session sessionCloseReason closeReason) {
        // NO-OP by default
    }

    
Event that is triggered when a protocol error occurs.

Parameters:
session The session
throwable The exception
    public void onError(Session sessionThrowable throwable) {
        // NO-OP by default
    }
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