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package oracle.toplink.essentials.platform.server.oc4j;

import oracle.toplink.essentials.internal.sessions.DatabaseSessionImpl;
import oracle.toplink.essentials.logging.JavaLog;
import oracle.toplink.essentials.logging.SessionLog;
import oracle.toplink.essentials.transaction.oc4j.Oc4jTransactionController;
import oracle.toplink.essentials.platform.server.ServerPlatformBase;

/**
 * PUBLIC:
 *
 * This is the concrete subclass responsible for representing Oc4j-specific server behaviour.
 *
 * This platform overrides:
 *
 * getExternalTransactionControllerClass(): to use an Oc4j-specific controller class
 *
 */
public class Oc4jPlatform extends ServerPlatformBase {

    /**
     * INTERNAL:
     * Default Constructor: All behaviour for the default constructor is inherited
     */
    public Oc4jPlatform(DatabaseSessionImpl newDatabaseSession) {
        super(newDatabaseSession);
    }

    /**
     * INTERNAL: getExternalTransactionControllerClass(): Answer the class of external transaction controller to use
     * for Oc4j. This is read-only.
     *
     * @return Class externalTransactionControllerClass
     *
     * @see oracle.toplink.essentials.transaction.JTATransactionController
     * @see ServerPlatformBase.isJTAEnabled()
     * @see ServerPlatformBase.disableJTA()
     * @see ServerPlatformBase.initializeExternalTransactionController()
     */
    public Class getExternalTransactionControllerClass() {
    	if (externalTransactionControllerClass == null){
    		externalTransactionControllerClass = Oc4jTransactionController.class;
    	}
        return externalTransactionControllerClass;
    }

    /**
     * INTERNAL: getServerLog(): Return the ServerLog for this platform
     *
     * Return JavaLog for Oc4jPlatform
     *
     * @return oracle.toplink.essentials.logging.SessionLog
     */
    //Bug5389724
    public SessionLog getServerLog() {
        return new JavaLog();
    }
}