GroupHeaderWithSubtotalReport

FieldGroupReport

Examples overview

GroupInNewPageReport

GroupHeaderWithSubtotalReport

/**
 * 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.group;

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

import java.math.BigDecimal;
import java.util.Calendar;
import java.util.Date;

import net.sf.dynamicreports.examples.Templates;
import net.sf.dynamicreports.report.base.expression.AbstractSimpleExpression;
import net.sf.dynamicreports.report.builder.column.TextColumnBuilder;
import net.sf.dynamicreports.report.builder.group.CustomGroupBuilder;
import net.sf.dynamicreports.report.constant.Calculation;
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 GroupHeaderWithSubtotalReport {

        public GroupHeaderWithSubtotalReport() {
                build();
        }

        private void build() {
                TextColumnBuilder<String> yearColumn = col.column("Order year", exp.text(""));
                TextColumnBuilder<Date> orderDateColumn = col.column("Order date", "orderdate", type.dateType());
                TextColumnBuilder<String> itemColumn = col.column("Item", "item", type.stringType());
                TextColumnBuilder<Integer> quantityColumn = col.column("Quantity", "quantity", type.integerType());
                TextColumnBuilder<BigDecimal> unitPriceColumn = col.column("Unit price", "unitprice", type.bigDecimalType());

                CustomGroupBuilder yearGroup = grp.group(new YearExpression())
                        .groupByDataType()
                        .headerWithSubtotal();

                try {
                        report()
                                .setTemplate(Templates.reportTemplate)
                                .setSubtotalStyle(stl.style(Templates.boldStyle))
                                .fields(
                                        field("orderdate", type.dateYearType()))
                                .columns(
                                        yearColumn,     orderDateColumn, itemColumn, quantityColumn, unitPriceColumn)
                                .groupBy(yearGroup)
                                .subtotalsAtGroupHeader(yearGroup,
                                        sbt.sum(quantityColumn), sbt.sum(unitPriceColumn))
                                .subtotalsAtSummary(
                                        sbt.aggregate(exp.text("Total"), yearColumn, Calculation.NOTHING), sbt.sum(quantityColumn), sbt.sum(unitPriceColumn))
                                .title(Templates.createTitleComponent("GroupHeaderWithSubtotal"))
                                .pageFooter(Templates.footerComponent)
                                .setDataSource(createDataSource())
                                .show();
                } catch (DRException e) {
                        e.printStackTrace();
                }
        }

        private class YearExpression extends AbstractSimpleExpression<String> {
                private static final long serialVersionUID = 1L;

                @Override
                public String evaluate(ReportParameters reportParameters) {
                        return type.dateYearType().valueToString("orderdate", reportParameters);
                }
        }

        private JRDataSource createDataSource() {
                DRDataSource dataSource = new DRDataSource("orderdate", "item", "quantity", "unitprice");
                dataSource.add(toDate(2009, 11, 1), "Tablet", 5, new BigDecimal(250));
                dataSource.add(toDate(2009, 11, 1), "Laptop", 3, new BigDecimal(480));
                dataSource.add(toDate(2009, 12, 1), "Smartphone", 1, new BigDecimal(280));
                dataSource.add(toDate(2009, 12, 1), "Tablet", 1, new BigDecimal(190));
                dataSource.add(toDate(2010, 1, 1), "Tablet", 4, new BigDecimal(230));
                dataSource.add(toDate(2010, 1, 1), "Laptop", 2, new BigDecimal(650));
                dataSource.add(toDate(2010, 2, 1), "Laptop", 3, new BigDecimal(550));
                dataSource.add(toDate(2010, 2, 1), "Smartphone", 5, new BigDecimal(210));
                return dataSource;
        }

        private Date toDate(int year, int month, int day) {
                Calendar c = Calendar.getInstance();
                c.set(Calendar.YEAR, year);
                c.set(Calendar.MONTH, month - 1);
                c.set(Calendar.DAY_OF_MONTH, day);
                return c.getTime();
        }

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