MeasureExpressionCrosstabReport

GroupExpressionCrosstabReport

Examples overview

PercentageCrosstabReport

MeasureExpressionCrosstabReport

/**
 * DynamicReports - Free Java reporting library for creating reports dynamically
 *
 * Copyright (C) 2010 - 2015 Ricardo Mariaca
 * http://dynamicreports.org
 *
 * This file is part of DynamicReports.
 *
 * DynamicReports is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * DynamicReports is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with DynamicReports. If not, see <http://www.gnu.org/licenses/>.
 */

package net.sf.dynamicreports.examples.crosstab;

import static net.sf.dynamicreports.report.builder.DynamicReports.*;

import java.math.BigDecimal;

import net.sf.dynamicreports.examples.Templates;
import net.sf.dynamicreports.report.base.expression.AbstractSimpleExpression;
import net.sf.dynamicreports.report.builder.crosstab.CrosstabBuilder;
import net.sf.dynamicreports.report.builder.crosstab.CrosstabColumnGroupBuilder;
import net.sf.dynamicreports.report.builder.crosstab.CrosstabMeasureBuilder;
import net.sf.dynamicreports.report.builder.crosstab.CrosstabRowGroupBuilder;
import net.sf.dynamicreports.report.builder.crosstab.CrosstabVariableBuilder;
import net.sf.dynamicreports.report.constant.Calculation;
import net.sf.dynamicreports.report.constant.PageOrientation;
import net.sf.dynamicreports.report.constant.PageType;
import net.sf.dynamicreports.report.datasource.DRDataSource;
import net.sf.dynamicreports.report.definition.ReportParameters;
import net.sf.dynamicreports.report.exception.DRException;
import net.sf.jasperreports.engine.JRDataSource;

/**
 * @author Ricardo Mariaca (r.mariaca@dynamicreports.org)
 */
public class MeasureExpressionCrosstabReport {
        private CrosstabMeasureBuilder<Integer> quantityMeasure;
        private CrosstabVariableBuilder<BigDecimal> unitPriceVariable;
        private CrosstabVariableBuilder<BigDecimal> priceVariable;

        public MeasureExpressionCrosstabReport() {
                build();
        }

        private void build() {
                CrosstabRowGroupBuilder<String> rowGroup = ctab.rowGroup("state", String.class)
                                                               .setTotalHeader("Total for state");

                CrosstabColumnGroupBuilder<String> columnGroup = ctab.columnGroup("item", String.class);

                unitPriceVariable = ctab.variable("unitprice", BigDecimal.class, Calculation.SUM);
                priceVariable = ctab.variable(new PriceExpression(), Calculation.SUM);
                quantityMeasure = ctab.measure("Quantity", "quantity", Integer.class, Calculation.SUM);
                //price1 = sum(unitprice) * sum(quantity)
                CrosstabMeasureBuilder<BigDecimal> priceMeasure1 = ctab.measure("Price1", new PriceMeasure1Expression());
                priceMeasure1.setDataType(type.bigDecimalType());
                //price2 = sum(unitprice * quantity)
                CrosstabMeasureBuilder<BigDecimal> priceMeasure2 = ctab.measure("Price2", new PriceMeasure2Expression());
                priceMeasure2.setDataType(type.bigDecimalType());

                CrosstabBuilder crosstab = ctab.crosstab()
                        .headerCell(cmp.text("State / Item").setStyle(Templates.boldCenteredStyle))
                        .setCellWidth(180)
                        .rowGroups(rowGroup)
                        .columnGroups(columnGroup)
                        .variables(unitPriceVariable, priceVariable)
                        .measures(quantityMeasure, priceMeasure1, priceMeasure2);

                try {
                        report()
                          .setPageFormat(PageType.A4, PageOrientation.LANDSCAPE)
                          .setTemplate(Templates.reportTemplate)
                          .title(
                                Templates.createTitleComponent("MeasureExpressionCrosstab"),
                                cmp.text("Price1 = SUM(quantity) * SUM(unitPrice)").setStyle(Templates.boldStyle),
                                cmp.text("Price2 = SUM(quantity * unitPrice)").setStyle(Templates.boldStyle))
                          .summary(crosstab)
                          .pageFooter(Templates.footerComponent)
                          .setDataSource(createDataSource())
                          .show();
                } catch (DRException e) {
                        e.printStackTrace();
                }
        }

        private class PriceExpression extends AbstractSimpleExpression<BigDecimal> {
                private static final long serialVersionUID = 1L;

                @Override
                public BigDecimal evaluate(ReportParameters reportParameters) {
                        Integer quantity = reportParameters.getValue("quantity");
                        BigDecimal unitPrice = reportParameters.getValue("unitprice");
                        return unitPrice.multiply(new BigDecimal(quantity));
                }
        }

        private class PriceMeasure1Expression extends AbstractSimpleExpression<BigDecimal> {
                private static final long serialVersionUID = 1L;

                @Override
                public BigDecimal evaluate(ReportParameters reportParameters) {
                        Integer quantity = reportParameters.getValue(quantityMeasure);
                        BigDecimal unitPrice = reportParameters.getValue(unitPriceVariable);
                        return unitPrice.multiply(new BigDecimal(quantity));
                }
        }

        private class PriceMeasure2Expression extends AbstractSimpleExpression<BigDecimal> {
                private static final long serialVersionUID = 1L;

                @Override
                public BigDecimal evaluate(ReportParameters reportParameters) {
                        return reportParameters.getValue(priceVariable);
                }
        }

        private JRDataSource createDataSource() {
                DRDataSource dataSource = new DRDataSource("state", "item", "quantity", "unitprice");
                dataSource.add("New York", "Notebook", 1, new BigDecimal(500));
                dataSource.add("New York", "DVD", 5, new BigDecimal(30));
                dataSource.add("New York", "DVD", 2, new BigDecimal(45));
                dataSource.add("New York", "DVD", 4, new BigDecimal(36));
                dataSource.add("New York", "DVD", 5, new BigDecimal(41));
                dataSource.add("New York", "Book", 2, new BigDecimal(11));
                dataSource.add("New York", "Book", 8, new BigDecimal(9));
                dataSource.add("New York", "Book", 6, new BigDecimal(14));

                dataSource.add("Washington", "Notebook", 1, new BigDecimal(610));
                dataSource.add("Washington", "DVD", 4, new BigDecimal(40));
                dataSource.add("Washington", "DVD", 6, new BigDecimal(35));
                dataSource.add("Washington", "DVD", 3, new BigDecimal(46));
                dataSource.add("Washington", "DVD", 2, new BigDecimal(42));
                dataSource.add("Washington", "Book", 3, new BigDecimal(12));
                dataSource.add("Washington", "Book", 9, new BigDecimal(8));
                dataSource.add("Washington", "Book", 4, new BigDecimal(14));
                dataSource.add("Washington", "Book", 5, new BigDecimal(10));

                dataSource.add("Florida", "Notebook", 1, new BigDecimal(460));
                dataSource.add("Florida", "DVD", 3, new BigDecimal(49));
                dataSource.add("Florida", "DVD", 4, new BigDecimal(32));
                dataSource.add("Florida", "DVD", 2, new BigDecimal(47));
                dataSource.add("Florida", "Book", 4, new BigDecimal(11));
                dataSource.add("Florida", "Book", 8, new BigDecimal(6));
                dataSource.add("Florida", "Book", 6, new BigDecimal(16));
                dataSource.add("Florida", "Book", 3, new BigDecimal(18));
                return dataSource;
        }

        public static void main(String[] args) {
                new MeasureExpressionCrosstabReport();
        }
}