Bug 191637 Empty cube causes error
Comment removed as requested by the submitter - 2007-06-08 droy
data/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/olap/data/util/DiskIndex.java
name,
				sonNumber,
				keyList,
				isSorted );
		return indexTree;
	}
	/**
	 * 
	 * @param name
	 * @param sortedStack
	 * @return
	 * @throws IOException
	 * @throws DataException 
	 */
	public static DiskIndex createIndex( IDocumentManager documentManager,
			String name, IDiskArray keyList, boolean isSorted )
			throws IOException, DataException
	{
		return createIndex( documentManager, name, 3, keyList, isSorted );
	}
	/**
	 * 
	 * @param name
	 * @param sortedStack
	 * @return
	 * @throws IOException
	 * @throws DataException 
	 */
	public static DiskIndex loadIndex( IDocumentManager documentManager,
			String name ) throws IOException, DataException