should be it

external/duckdb/third_party/tpce-tool/include/main/FixedTable.h

@@ -0,0 +1,93 @@
+/*
+ * Legal Notice
+ *
+ * This document and associated source code (the "Work") is a part of a
+ * benchmark specification maintained by the TPC.
+ *
+ * The TPC reserves all right, title, and interest to the Work as provided
+ * under U.S. and international laws, including without limitation all patent
+ * and trademark rights therein.
+ *
+ * No Warranty
+ *
+ * 1.1 TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, THE INFORMATION
+ *     CONTAINED HEREIN IS PROVIDED "AS IS" AND WITH ALL FAULTS, AND THE
+ *     AUTHORS AND DEVELOPERS OF THE WORK HEREBY DISCLAIM ALL OTHER
+ *     WARRANTIES AND CONDITIONS, EITHER EXPRESS, IMPLIED OR STATUTORY,
+ *     INCLUDING, BUT NOT LIMITED TO, ANY (IF ANY) IMPLIED WARRANTIES,
+ *     DUTIES OR CONDITIONS OF MERCHANTABILITY, OF FITNESS FOR A PARTICULAR
+ *     PURPOSE, OF ACCURACY OR COMPLETENESS OF RESPONSES, OF RESULTS, OF
+ *     WORKMANLIKE EFFORT, OF LACK OF VIRUSES, AND OF LACK OF NEGLIGENCE.
+ *     ALSO, THERE IS NO WARRANTY OR CONDITION OF TITLE, QUIET ENJOYMENT,
+ *     QUIET POSSESSION, CORRESPONDENCE TO DESCRIPTION OR NON-INFRINGEMENT
+ *     WITH REGARD TO THE WORK.
+ * 1.2 IN NO EVENT WILL ANY AUTHOR OR DEVELOPER OF THE WORK BE LIABLE TO
+ *     ANY OTHER PARTY FOR ANY DAMAGES, INCLUDING BUT NOT LIMITED TO THE
+ *     COST OF PROCURING SUBSTITUTE GOODS OR SERVICES, LOST PROFITS, LOSS
+ *     OF USE, LOSS OF DATA, OR ANY INCIDENTAL, CONSEQUENTIAL, DIRECT,
+ *     INDIRECT, OR SPECIAL DAMAGES WHETHER UNDER CONTRACT, TORT, WARRANTY,
+ *     OR OTHERWISE, ARISING IN ANY WAY OUT OF THIS OR ANY OTHER AGREEMENT
+ *     RELATING TO THE WORK, WHETHER OR NOT SUCH AUTHOR OR DEVELOPER HAD
+ *     ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES.
+ *
+ * Contributors
+ * - Doug Johnson
+ */
+
+/*
+ *   Class representing the Fixed table.
+ */
+#ifndef FIXED_TABLE_H
+#define FIXED_TABLE_H
+
+namespace TPCE {
+
+template <class DataFileT, class TableRowT> class FixedTable {
+protected:
+	const DataFileT &df;
+	TableRowT tableRow;
+	int recordIdx;
+
+public:
+	FixedTable(const DataFileT &dataFile) : df(dataFile), tableRow(), recordIdx(-1) {
+	}
+
+	virtual ~FixedTable() {
+	}
+
+	/*
+	 *   Generates all fields for the next record.
+	 *   Template Method Pattern used to accommodate
+	 *   subtle variations in underlying data files
+	 *   (i.e. DataFile vs. WeightedDataFile).
+	 */
+	bool GenerateNextRecord() {
+		// Don't increment past size().
+		if (MaxRecordIdx() != recordIdx) {
+			++recordIdx;
+		}
+
+		// See if we just went past the end.
+		if (MaxRecordIdx() == recordIdx) {
+			return false;
+		}
+
+		LoadTableRow();
+
+		// We have a valid record.
+		return true;
+	}
+
+	virtual unsigned int MaxRecordIdx() const {
+		return df.size();
+	}
+
+	const TableRowT &GetRow() const {
+		return tableRow;
+	}
+
+	virtual void LoadTableRow() = 0;
+};
+
+} // namespace TPCE
+#endif // FIXED_TABLE_H