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/*
Copyright (c) 2010, 2014, Oracle and/or its affiliates. All rights reserved.
The MySQL Connector/J is licensed under the terms of the GPLv2
<http://www.gnu.org/licenses/old-licenses/gpl-2.0.html>, like most MySQL Connectors.
There are special exceptions to the terms and conditions of the GPLv2 as it is applied to
this software, see the FOSS License Exception
<http://www.mysql.com/about/legal/licensing/foss-exception.html>.
This program is free software; you can redistribute it and/or modify it under the terms
of the GNU General Public License as published by the Free Software Foundation; version 2
of the License.
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., 51 Franklin St, Fifth
Floor, Boston, MA 02110-1301 USA
*/
package com.mysql.jdbc;
import java.sql.SQLException;
public interface LoadBalanceExceptionChecker extends Extension {
/**
* Invoked to determine whether or a given SQLException should
* trigger a failover in a load-balanced deployment.
*
* The driver will not pass in a Connection instance when calling init(), but it
* will pass in the Properties, otherwise it acts like a normal Extension.
*
* One instance of a handler *per* JDBC connection instance will be created. If
* you need singleton-like behavior, you're on your own to provide it.
*
* @param ex
* @return true if the exception should trigger failover.
*/
public boolean shouldExceptionTriggerFailover(SQLException ex);
}