Hibernate example source code file (InjectedDataSourceConnectionProvider.java)

This example Hibernate source code file (InjectedDataSourceConnectionProvider.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Hibernate tags/keywords

connection, connection, datasourceconnectionproviderimpl, entitymanagermessagelogger, hibernateexception, hibernateexception, injecteddatasourceconnectionprovider, jdbc, log, no, override, override, sql, sqlexception, string, string, util

The Hibernate InjectedDataSourceConnectionProvider.java source code

/*
 * Copyright (c) 2009, Red Hat Middleware LLC or third-party contributors as
 * indicated by the @author tags or express copyright attribution
 * statements applied by the authors.  All third-party contributions are
 * distributed under license by Red Hat Middleware LLC.
 *
 * This copyrighted material is made available to anyone wishing to use, modify,
 * copy, or redistribute it subject to the terms and conditions of the GNU
 * Lesser General Public License, as published by the Free Software Foundation.
 *
 * 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 Lesser General Public License
 * for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this distribution; if not, write to:
 * Free Software Foundation, Inc.
 * 51 Franklin Street, Fifth Floor
 * Boston, MA  02110-1301  USA
 */
package org.hibernate.ejb.connection;
import java.sql.Connection;
import java.sql.SQLException;
import java.util.Properties;
import javax.sql.DataSource;
import org.hibernate.HibernateException;
import org.hibernate.cfg.Environment;
import org.hibernate.ejb.internal.EntityManagerMessageLogger;
import org.hibernate.service.jdbc.connections.internal.DatasourceConnectionProviderImpl;
import org.jboss.logging.Logger;

/**
 * A specialization of {@link DatasourceConnectionProviderImpl} which uses the {@link DataSource} specified vi
 * {@link #setDataSource} rather than locating it from JNDI.
 * <p/>
 * NOTE : {@link #setDataSource} must be called prior to {@link #configure}.
 * <p/>
 * TODO : could not find where #setDataSource is actually called.  Can't this just be passed in to #configure???
 *
 * @author Emmanuel Bernard
 */
public class InjectedDataSourceConnectionProvider extends DatasourceConnectionProviderImpl {

    private static final EntityManagerMessageLogger LOG = Logger.getMessageLogger(EntityManagerMessageLogger.class,
                                                                           InjectedDataSourceConnectionProvider.class.getName());

	private String user;
	private String pass;

	@Override
    public void setDataSource(DataSource ds) {
		super.setDataSource( ds );
	}

	public void configure(Properties props) throws HibernateException {
		user = props.getProperty( Environment.USER );
		pass = props.getProperty( Environment.PASS );

        if (getDataSource() == null) throw new HibernateException("No datasource provided");
        LOG.usingProvidedDataSource();
	}

	@Override
	public Connection getConnection() throws SQLException {
        if (user != null || pass != null) return getDataSource().getConnection(user, pass);
        return getDataSource().getConnection();
	}
}