Bug 182895 Support sort on Level attribute.
Currently in OLAP engine we only support sort on level key value. We should go ahead to support sort on level attribute value.
data/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/olap/data/api/CubeQueryExecutorHelper.java
/**
	 * 
	 * @param pathName
	 * @param name
	 * @return
	 */
	private static String getTmpFileName( String pathName, String name )
	{
		return pathName + File.separator + "cubequeryresult" +name;
	}
	
	
	/**
	 * 
	 * @param sort
	 */
	public void addRowSort( AggrSortDefinition sort )
	{
		this.rowSort.add( sort );
	}
	
	/**
	 * 
	 * @return sortDefinition list on row edge
	 */
	public List getRowSort( )
	{
		return this.rowSort;
	}