--- /dev/null
+/* ====================================================================
+ Licensed to the Apache Software Foundation (ASF) under one or more
+ contributor license agreements. See the NOTICE file distributed with
+ this work for additional information regarding copyright ownership.
+ The ASF licenses this file to You under the Apache License, Version 2.0
+ (the "License"); you may not use this file except in compliance with
+ the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+==================================================================== */
+
+package org.apache.poi.ss.formula.functions;
+
+import org.apache.poi.ss.formula.eval.NumberEval;
+import org.apache.poi.ss.formula.eval.NumericValueEval;
+import org.apache.poi.ss.formula.eval.ValueEval;
+import org.apache.poi.ss.util.NumberToTextConverter;
+
+import java.math.BigDecimal;
+import java.util.ArrayList;
+
+/**
+ * Implementation of the DProduct function:
+ * Gets the product value of a column in an area with given conditions.
+ */
+public final class DProduct implements IDStarAlgorithm {
+ private double product;
+ private boolean initDone = false;
+
+ @Override
+ public boolean processMatch(ValueEval eval) {
+ if (eval instanceof NumericValueEval) {
+ if (initDone) {
+ product *= ((NumericValueEval) eval).getNumberValue();
+ } else {
+ product = ((NumericValueEval) eval).getNumberValue();
+ initDone = true;
+ }
+ }
+ return true;
+ }
+
+ @Override
+ public ValueEval getResult() {
+ return new NumberEval(product);
+ }
+}
--- /dev/null
+
+/* ====================================================================
+ Licensed to the Apache Software Foundation (ASF) under one or more
+ contributor license agreements. See the NOTICE file distributed with
+ this work for additional information regarding copyright ownership.
+ The ASF licenses this file to You under the Apache License, Version 2.0
+ (the "License"); you may not use this file except in compliance with
+ the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+==================================================================== */
+package org.apache.poi.ss.formula.functions;
+
+import org.apache.poi.hssf.usermodel.HSSFCell;
+import org.apache.poi.hssf.usermodel.HSSFFormulaEvaluator;
+import org.apache.poi.hssf.usermodel.HSSFSheet;
+import org.apache.poi.hssf.usermodel.HSSFWorkbook;
+import org.junit.jupiter.api.Test;
+
+import java.io.IOException;
+
+import static org.apache.poi.ss.util.Utils.addRow;
+import static org.apache.poi.ss.util.Utils.assertDouble;
+
+/**
+ * Testcase for function DPRODUCT()
+ */
+public class TestDProduct {
+
+ //https://support.microsoft.com/en-us/office/dproduct-function-4f96b13e-d49c-47a7-b769-22f6d017cb31
+ @Test
+ void testMicrosoftExample1() throws IOException {
+ try (HSSFWorkbook wb = initWorkbook1(false)) {
+ HSSFFormulaEvaluator fe = new HSSFFormulaEvaluator(wb);
+ HSSFCell cell = wb.getSheetAt(0).getRow(0).createCell(12);
+ assertDouble(fe, cell, "DPRODUCT(A5:E11, \"Yield\", A1:F3)", 800, 0.0000000001);
+ }
+ }
+
+ @Test
+ void testNoMatch() throws IOException {
+ try (HSSFWorkbook wb = initWorkbook1(true)) {
+ HSSFFormulaEvaluator fe = new HSSFFormulaEvaluator(wb);
+ HSSFCell cell = wb.getSheetAt(0).getRow(0).createCell(12);
+ assertDouble(fe, cell, "DPRODUCT(A5:E11, \"Yield\", A1:A2)", 0);
+ assertDouble(fe, cell, "DPRODUCT(A5:E11, \"Yield\", A1:A3)", 604800);
+ }
+ }
+
+ private HSSFWorkbook initWorkbook1(boolean noMatch) {
+ HSSFWorkbook wb = new HSSFWorkbook();
+ HSSFSheet sheet = wb.createSheet();
+ addRow(sheet, 0, "Tree", "Height", "Age", "Yield", "Profit", "Height");
+ if (noMatch) {
+ addRow(sheet, 1, "=NoMatch");
+ addRow(sheet, 2);
+ } else {
+ addRow(sheet, 1, "=Apple", ">10", null, null, null, "<16");
+ addRow(sheet, 2, "=Pear");
+ }
+ addRow(sheet, 3);
+ addRow(sheet, 4, "Tree", "Height", "Age", "Yield", "Profit");
+ addRow(sheet, 5, "Apple", 18, 20, 14, 105);
+ addRow(sheet, 6, "Pear", 12, 12, 10, 96);
+ addRow(sheet, 7, "Cherry", 13, 14, 9, 105);
+ addRow(sheet, 8, "Apple", 14, 15, 10, 75);
+ addRow(sheet, 9, "Pear", 9, 8, 8, 77);
+ addRow(sheet, 10, "Apple", 8, 9, 6, 45);
+ return wb;
+ }
+}