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/*
Copyright (c) 2007, 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;
import java.sql.SQLClientInfoException;
import java.util.Properties;
/**
* Classes that implement this interface and provide a no-args constructor can be used by the driver to store and retrieve client information and/or labels.
*
* The driver will create an instance for each Connection instance, and call initialize() once and only once. When the connection is closed, destroy() will be
* called, and the provider is expected to clean up any resources at this time.
*/
public interface JDBC4ClientInfoProvider {
/**
* Called once by the driver when it needs to configure the provider.
*
* @param conn
* the connection that the provider belongs too.
* @param configurationProps
* a java.util.Properties instance that contains
* configuration information for the connection.
* @throws SQLException
* if initialization fails.
*/
public void initialize(java.sql.Connection conn, Properties configurationProps) throws SQLException;
/**
* Called once by the driver when the connection this provider instance
* belongs to is being closed.
*
* Implementations are expected to clean up and resources at this point
* in time.
*
* @throws SQLException
* if an error occurs.
*/
public void destroy() throws SQLException;
/**
* Returns the client info for the connection that this provider
* instance belongs to. The connection instance is passed as an argument
* for convenience's sake.
*
* Providers can use the connection to communicate with the database,
* but it will be within the scope of any ongoing transactions, so therefore
* implementations should not attempt to change isolation level, autocommit settings
* or call rollback() or commit() on the connection.
*
* @param conn
* @return
* @throws SQLException
*
* @see java.sql.Connection#getClientInfo()
*/
public Properties getClientInfo(java.sql.Connection conn) throws SQLException;
/**
* Returns the client info for the connection that this provider
* instance belongs to. The connection instance is passed as an argument
* for convenience's sake.
*
* Providers can use the connection to communicate with the database,
* but it will be within the scope of any ongoing transactions, so therefore
* implementations should not attempt to change isolation level, autocommit settings
* or call rollback() or commit() on the connection.
*
* @param conn
* @return
* @throws SQLException
*
* @see java.sql.Connection#getClientInfo(java.lang.String)
*/
public String getClientInfo(java.sql.Connection conn, String name) throws SQLException;
/**
* Sets the client info for the connection that this provider
* instance belongs to. The connection instance is passed as an argument
* for convenience's sake.
*
* Providers can use the connection to communicate with the database,
* but it will be within the scope of any ongoing transactions, so therefore
* implementations should not attempt to change isolation level, autocommit settings
* or call rollback() or commit() on the connection.
*
* @param conn
* @return
* @throws SQLException
*
* @see java.sql.Connection#setClientInfo(java.util.Properties)
*/
public void setClientInfo(java.sql.Connection conn, Properties properties) throws SQLClientInfoException;
/**
* Sets the client info for the connection that this provider
* instance belongs to. The connection instance is passed as an argument
* for convenience's sake.
*
* Providers can use the connection to communicate with the database,
* but it will be within the scope of any ongoing transactions, so therefore
* implementations should not attempt to change isolation level, autocommit settings
* or call rollback() or commit() on the connection.
*
* @param conn
* @return
* @throws SQLException
*
* @see java.sql.Connection#setClientInfo(java.lang.String,java.lang.String)
*/
public void setClientInfo(java.sql.Connection conn, String name, String value) throws SQLClientInfoException;
}