com.mchange.v2.c3p0.util.ConnectionEventSupport Maven / Gradle / Ivy
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c3p0 is an easy-to-use library for augmenting traditional (DriverManager-based) JDBC drivers with JNDI-bindable DataSources,
including DataSources that implement Connection and Statement Pooling, as described by the jdbc3 spec and jdbc2 std extension.
/*
* Distributed as part of c3p0 v.0.9.1
*
* 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 com.mchange.v2.c3p0.util;
import java.util.*;
import java.sql.*;
import javax.sql.*;
public class ConnectionEventSupport
{
PooledConnection source;
HashSet mlisteners = new HashSet();
public ConnectionEventSupport(PooledConnection source)
{ this.source = source; }
public synchronized void addConnectionEventListener(ConnectionEventListener mlistener)
{mlisteners.add(mlistener);}
public synchronized void removeConnectionEventListener(ConnectionEventListener mlistener)
{mlisteners.remove(mlistener);}
public void fireConnectionClosed()
{
Set mlCopy;
synchronized (this)
{ mlCopy = (Set) mlisteners.clone(); }
ConnectionEvent evt = new ConnectionEvent(source);
for (Iterator i = mlCopy.iterator(); i.hasNext();)
{
ConnectionEventListener cl = (ConnectionEventListener) i.next();
cl.connectionClosed(evt);
}
}
public void fireConnectionErrorOccurred(SQLException error)
{
Set mlCopy;
synchronized (this)
{ mlCopy = (Set) mlisteners.clone(); }
ConnectionEvent evt = new ConnectionEvent(source, error);
for (Iterator i = mlCopy.iterator(); i.hasNext();)
{
ConnectionEventListener cl = (ConnectionEventListener) i.next();
cl.connectionErrorOccurred(evt);
}
}
}