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      1 /*
      2  * Copyright (c) 2006-2011 Christian Plattner. All rights reserved.
      3  * Please refer to the LICENSE.txt for licensing details.
      4  */
      5 package ch.ethz.ssh2;
      6 
      7 /**
      8  * A <code>ConnectionMonitor</code> is used to get notified when the
      9  * underlying socket of a connection is closed.
     10  *
     11  * @author Christian Plattner
     12  * @version 2.50, 03/15/10
     13  */
     14 
     15 public interface ConnectionMonitor
     16 {
     17 	/**
     18 	 * This method is called after the connection's underlying
     19 	 * socket has been closed. E.g., due to the {@link Connection#close()} request of the
     20 	 * user, if the peer closed the connection, due to a fatal error during connect()
     21 	 * (also if the socket cannot be established) or if a fatal error occured on
     22 	 * an established connection.
     23 	 * <p>
     24 	 * This is an experimental feature.
     25 	 * <p>
     26 	 * You MUST NOT make any assumption about the thread that invokes this method.
     27 	 * <p>
     28 	 * <b>Please note: if the connection is not connected (e.g., there was no successful
     29 	 * connect() call), then the invocation of {@link Connection#close()} will NOT trigger
     30 	 * this method.</b>
     31 	 *
     32 	 * @see Connection#addConnectionMonitor(ConnectionMonitor)
     33 	 *
     34 	 * @param reason Includes an indication why the socket was closed.
     35 	 */
     36 	public void connectionLost(Throwable reason);
     37 }