relativePath = "RowLengthInfo";
relativePath = "ExprRowLen";
	private static String getPath( String streamID, String subStreamID, int streamType )	{		if ( streamType == VERSION_INFO_STREAM )			return "/DataEngine/VesionInfo";				String relativePath = null;		switch ( streamType )		{			case DATASET_DATA_STREAM :				relativePath = "DataSetData";				break;			case DATASET_META_STREAM :				relativePath = "ResultClass";				break;							case EXPR_VALUE_STREAM :				relativePath = "ExprValue";				break;			case EXPR_ROWLEN_STREAM :				relativePath = "RowLengthInfo";				break;			case EXPR_META_STREAM :				relativePath = "ExprMetaInfo";				break;							case GROUP_INFO_STREAM :				relativePath = "GroupInfo";				break;			case SUBQUERY_INFO_STREAM :				relativePath = "SubQueryInfo";				break;			case FILTER_DEFN_STREAM :				relativePath = "FilterDefn";				break;			case GROUP_DEFN_STREAM:				relativePath = "GroupDefn";				break;							case ROW_INDEX_STREAM:				relativePath = "RowIndexInfo";				break;						case QUERYID_INFO_STREAM :				relativePath = "QueryIDInfo";				break;							default :				assert false; // impossible		}				String streamRoot = "/" + streamID + "/";		if ( subStreamID != null )			streamRoot += subStreamID + "/";		return streamRoot + relativePath;	}	