/*
 * The contents of this file are subject to the terms 
 * of the Common Development and Distribution License 
 * (the "License").  You may not use this file except 
 * in compliance with the License.
 * 
 * You can obtain a copy of the license at 
 * glassfish/bootstrap/legal/CDDLv1.0.txt or 
 * https://glassfish.dev.java.net/public/CDDLv1.0.html. 
 * See the License for the specific language governing 
 * permissions and limitations under the License.
 * 
 * When distributing Covered Code, include this CDDL 
 * HEADER in each file and include the License file at 
 * glassfish/bootstrap/legal/CDDLv1.0.txt.  If applicable, 
 * add the following below this CDDL HEADER, with the 
 * fields enclosed by brackets "[]" replaced with your 
 * own identifying information: Portions Copyright [yyyy] 
 * [name of copyright owner]
 */
// Copyright (c) 1998, 2006, Oracle. All rights reserved.  
package oracle.toplink.essentials.platform.server;

import oracle.toplink.essentials.internal.sessions.DatabaseSessionImpl;
import oracle.toplink.essentials.internal.databaseaccess.Platform;
import oracle.toplink.essentials.logging.DefaultSessionLog;

/**
 *
 * PUBLIC:
 *
 * This platform is used when TopLink is not within any server (Oc4j, WebLogic, ...)
 * This is also the default platform for all newly created DatabaseSessions.
 *
 * This platform has:
 *
 * - No external transaction controller class
 * - No runtime services (JMX/MBean)
 * - No launching of container Threads
 *
 */
public final class NoServerPlatform extends ServerPlatformBase {

    /**
     * INTERNAL:
     * Default Constructor: Initialize so that runtime services and JTA are disabled.
     */
    public NoServerPlatform(DatabaseSessionImpl newDatabaseSession) {
        super(newDatabaseSession);
        this.disableRuntimeServices();
        ;
        this.disableJTA();
    }

    /**
     * PUBLIC: getServerNameAndVersion(): Answer null because this does not apply to NoServerPlatform.
     *
     * @return String serverNameAndVersion
     */
    public String getServerNameAndVersion() {
        return null;
    }

    /**
     * INTERNAL: getExternalTransactionControllerClass(): Answer null because this does not apply.
     *
     * @see #isJTAEnabled()
     * @see #disableJTA()
     * @see #initializeExternalTransactionController()
     */
    public Class getExternalTransactionControllerClass() {
        return null;
    }

    /**
     * INTERNAL: launchContainerThread(Thread thread): Do nothing because container Threads are not launchable
     * in this platform
     *
     * @param Thread thread : the instance of Thread
     * @return void
     */
    public void launchContainerThread(Thread thread) {
    }

    /**
     * INTERNAL: getServerLog(): Return the ServerLog for this platform
     *
     * Return the default ServerLog in the base
     *
     * @return oracle.toplink.essentials.logging.SessionLog
     */
    public oracle.toplink.essentials.logging.SessionLog getServerLog() {
        return new DefaultSessionLog();
    }    

    /**
     * INTERNAL:
     * When there is no server, the original connection will be returned
     */
    public java.sql.Connection unwrapOracleConnection(Platform platform, java.sql.Connection connection){
        return connection;
    }
}