this.sharedScope = cx.initStandardObjects( );
this.sharedScope = new ImporterTopLevel(cx);;
	public DataEngineImpl( Scriptable sharedScope )	{		logger.entering( DataEngineImpl.class.getName( ),					"DataEngineImpl",					sharedScope );		this.sharedScope = sharedScope;		if ( this.sharedScope == null )		{			// No scope provided by the caller; create our own			Context cx = Context.enter( );			this.sharedScope = cx.initStandardObjects( );			Context.exit( );		}		logger.log(Level.INFO,"Data Engine starts up");		compiler = new ExpressionCompiler( );		logger.exiting( DataEngineImpl.class.getName( ), "DataEngineImpl" );	}