/* Copyright (C) 2002-2007 MySQL AB This program is free software; you can redistribute it and/or modify it under the terms of version 2 of the GNU General Public License as  published by the Free Software Foundation. There are special exceptions to the terms and conditions of the GPL  as it is applied to this software. View the full text of the  exception in file EXCEPTIONS-CONNECTOR-J in the directory of this  software distribution. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */package com.mysql.jdbc;import java.net.BindException;import java.sql.SQLException;/** * An exception to represent communications errors with the database. *  * Attempts to provide 'friendler' error messages to end-users, including last * time a packet was sent to the database, what the client-timeout is set to, * and whether the idle time has been exceeded. *  * @author Mark Matthews *  * @version $Id: CommunicationsException.java,v 1.1.2.1 2005/05/13 18:58:37 *          mmatthews Exp $ */public class CommunicationsException extends SQLException implements StreamingNotifiable {		private String exceptionMessage;	private boolean streamingResultSetInPlay = false;	public CommunicationsException(ConnectionImpl conn, long lastPacketSentTimeMs,			Exception underlyingException) {		this.exceptionMessage = SQLError.createLinkFailureMessageBasedOnHeuristics(conn,				lastPacketSentTimeMs, underlyingException, this.streamingResultSetInPlay);	}		/*	 * (non-Javadoc)	 * 	 * @see java.lang.Throwable#getMessage()	 */	public String getMessage() {		return this.exceptionMessage;	}	/*	 * (non-Javadoc)	 * 	 * @see java.sql.SQLException#getSQLState()	 */	public String getSQLState() {		return SQLError.SQL_STATE_COMMUNICATION_LINK_FAILURE;	}	/* (non-Javadoc)	 * @see com.mysql.jdbc.StreamingNotifiable#setWasStreamingResults()	 */	public void setWasStreamingResults() {		this.streamingResultSetInPlay = true;	}}