io.logspace.agent.shaded.mchange.v2.c3p0.ConnectionCustomizer Maven / Gradle / Ivy
/*
* Distributed as part of c3p0 v.0.9.1.1
*
* Copyright (C) 2005 Machinery For Change, Inc.
*
* Author: Steve Waldman
*
* This library is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 2.1, as
* published by the Free Software Foundation.
*
* This software 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this software; see the file LICENSE. If not, write to the
* Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, MA 02111-1307, USA.
*/
package io.logspace.agent.shaded.mchange.v2.c3p0;
import java.sql.Connection;
import java.sql.SQLException;
/**
* Implementations of this interface should
* be immutable, and should offer public,
* no argument constructors.
*
* The methods are handed raw, physical
* database Connections, not c3p0-generated
* proxies.
*
* Although c3p0 will ensure this with
* respect to state controlled by
* standard JDBC methods, any modifications
* of vendor-specific state shold be made
* consistently so that all Connections
* in the pool are interchangable.
*/
public interface ConnectionCustomizer
{
/**
* Called immediately after a
* Connection is acquired from the
* underlying database for
* incorporation into the pool.
*
* This method is only called once
* per Connection. If standard JDBC
* Connection properties are modified
* [holdability, transactionIsolation,
* readOnly], those modifications
* will override defaults throughout
* the Connection's tenure in the
* pool.
*/
public void onAcquire( Connection c, String parentDataSourceIdentityToken )
throws Exception;
/**
* Called immediately before a
* Connection is destroyed after
* being removed from the pool.
*/
public void onDestroy( Connection c, String parentDataSourceIdentityToken )
throws Exception;
/**
* Called immediately before a
* Connection is made available to
* a client upon checkout.
*/
public void onCheckOut( Connection c, String parentDataSourceIdentityToken )
throws Exception;
/**
* Called immediately after a
* Connection is checked in,
* prior to reincorporation
* into the pool.
*/
public void onCheckIn( Connection c, String parentDataSourceIdentityToken )
throws Exception;
}