Returning a Range of Values using AbstractCalculationEngine

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The following code demonstrates the use of the AbstractCalculationEngine and returns the range of values via its method.

Create a class with a function CalculateCustomFunction. This class extends AbstractCalculationEngine.

// For complete examples and data files, please go to https://github.com/aspose-cells/Aspose.Cells-for-Java
import java.util.ArrayList;
import com.aspose.cells.AbstractCalculationEngine;
import com.aspose.cells.CalculationData;
import com.aspose.cells.DateTime;
public class CustomFunctionStaticValue extends AbstractCalculationEngine {
@Override
public void calculate(CalculationData calculationData) {
calculationData.setCalculatedValue(new Object[][] { new Object[] { new DateTime(2015, 6, 12, 10, 6, 30), 2 },
new Object[] { 3.0, "Test" } });
}
}

Now use the above function into your program.

// For complete examples and data files, please go to https://github.com/aspose-cells/Aspose.Cells-for-Java
String outputDir = Utils.Get_OutputDirectory();
Workbook workbook = new Workbook();
Cells cells = workbook.getWorksheets().get(0).getCells();
Cell cell = cells.get(0, 0);
cell.setArrayFormula("=MYFUNC()", 2, 2);
Style style = cell.getStyle();
style.setNumber(14);
cell.setStyle(style);
CalculationOptions copt = new CalculationOptions();
copt.setCustomEngine(new CustomFunctionStaticValue());
workbook.calculateFormula(copt);
// Save to XLSX by setting the calc mode to manual
workbook.getSettings().getFormulaSettings().setCalculationMode(CalcModeType.MANUAL);
workbook.save(outputDir + "output.xlsx");
// Save to PDF
workbook.save(outputDir + "output.pdf");