/*
* JBoss, Home of Professional Open Source.
* Copyright 2006, Red Hat Middleware LLC, and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* 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; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.resource.adapter.jdbc.vendor;
import java.io.Serializable;
import java.sql.Connection;
import java.sql.SQLException;
import java.sql.Statement;
import org.jboss.resource.adapter.jdbc.ValidConnectionChecker;
/**
* A PostgreSQLValidConnectionChecker.
*
* @author <a href="weston.price@jboss.com">Weston Price</a>
* @version $Revision: 71554 $
*/
public class PostgreSQLValidConnectionChecker implements ValidConnectionChecker, Serializable
{
/** The serialVersionUID */
private static final long serialVersionUID = 4867167301823753925L;
public SQLException isValidConnection(Connection c)
{
Statement stmt = null;
SQLException sqe = null;
try
{
stmt = c.createStatement();
stmt.execute("");
}
catch (Exception e)
{
if (e instanceof SQLException)
{
sqe = (SQLException)e;
}
}
finally
{
if (stmt != null)
{
try
{
stmt.close();
}
catch (SQLException e)
{
}
}
}
return sqe;
}
}