org.openmdx.kernel.lightweight.naming.jdbc.LightweightDataSourceContext Maven / Gradle / Ivy
/*
* ====================================================================
* Project: openMDX/Core, http://www.openmdx.org/
* Description: Lightweight DataSource Context
* Owner: OMEX AG, Switzerland, http://www.omex.ch
* ====================================================================
*
* This software is published under the BSD license as listed below.
*
* Copyright (c) 2009-2016, OMEX AG, Switzerland
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* * Neither the name of the openMDX team nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* ------------------
*
* This product includes software developed by other organizations as
* listed in the NOTICE file.
*/
package org.openmdx.kernel.lightweight.naming.jdbc;
import javax.naming.NamingException;
import javax.transaction.TransactionManager;
import org.openmdx.kernel.lightweight.naming.spi.ResourceContext;
import org.openmdx.kernel.lightweight.sql.LightweightDataSource;
/**
* DataSource Context
*/
class LightweightDataSourceContext extends ResourceContext {
/**
* Constructor
*/
LightweightDataSourceContext (
TransactionManager transactionManager
){
this.transactionManager = transactionManager;
}
/**
* The Transaction Manager to register the data sources with
*/
private final TransactionManager transactionManager;
/* (non-Javadoc)
* @see javax.naming.Context#lookup(java.lang.String)
*/
public Object lookup(
String name
) throws NamingException {
Object dataSource = lookupLink(name);
if(dataSource == null) {
dataSource = new LightweightDataSource(transactionManager, name);
bind(name, dataSource);
}
return dataSource;
}
}