DataSetManager.getCurrentInstance( ).refresh( handle );
try { DataSetUIUtil.updateColumnCache( handle ); } catch ( SemanticException e ) { ExceptionHandler.handle( e ); }
	public void run( )	{		if ( Policy.TRACING_ACTIONS )		{			System.out.println( "Refresh action >> Refresh " + getSourceViewer( ) ); //$NON-NLS-1$		}		if ( isEnabled( ) )		{			DataSetHandle handle = (DataSetHandle) getSelectedObjects( ).getFirstElement( );			DataSetManager.getCurrentInstance( ).refresh( handle );			getSourceViewer( ).refresh( handle );		}	}