SubtotalReport

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SubtotalReport

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/**
 * DynamicReports - Free Java reporting library for creating reports dynamically
 *
 * Copyright (C) 2010 - 2018 Ricardo Mariaca
 * http://www.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.gettingstarted;

import static net.sf.dynamicreports.report.builder.DynamicReports.*;
import net.sf.dynamicreports.report.builder.column.TextColumnBuilder;
import net.sf.dynamicreports.report.builder.group.ColumnGroupBuilder;
import net.sf.dynamicreports.report.builder.style.StyleBuilder;
import net.sf.dynamicreports.report.builder.subtotal.AggregationSubtotalBuilder;
import net.sf.dynamicreports.report.builder.subtotal.PercentageSubtotalBuilder;
import net.sf.dynamicreports.report.constant.HorizontalTextAlignment;
import net.sf.dynamicreports.report.datasource.DRDataSource;
import net.sf.dynamicreports.report.exception.DRException;
import net.sf.jasperreports.engine.JRDataSource;

/**
 * @author Ricardo Mariaca (r.mariaca@dynamicreports.org)
 */
public class SubtotalReport {
	private StyleBuilder boldStyle;
	private TextColumnBuilder<Integer> column2;

	public SubtotalReport() {
		build();
	}

	private void build() {
		boldStyle = stl.style().bold().setHorizontalTextAlignment(HorizontalTextAlignment.RIGHT);

		TextColumnBuilder<String> column1 = col.column("Column1", "column1", type.stringType());
		column2 = col.column("Column2", "column2", type.integerType());
		ColumnGroupBuilder columnGroup = grp.group(column1);

		try {
			report()// create new report design
					.setPageColumnsPerPage(2)
					.setSubtotalStyle(boldStyle)
					.columns(column1, column2)
					.groupBy(columnGroup)

					// subtotals
					.subtotalsAtTitle(createSubtotal("This is a title sum"))
					.subtotalsAtPageHeader(createSubtotal("This is a page header sum"))
					.subtotalsAtPageFooter(createSubtotal("This is a page footer sum"))
					.subtotalsAtColumnHeader(createSubtotal("This is a column header sum"))
					.subtotalsAtColumnFooter(createSubtotal("This is a column footer sum"))
					.subtotalsAtLastPageFooter(createSubtotal("This is a last page footer sum"))
					.subtotalsAtSummary(createSubtotal("This is a summary sum"))
					.subtotalsAtGroupHeader(columnGroup, createSubtotal("This is a group header sum"))
					.subtotalsAtGroupFooter(columnGroup, createSubtotal("This is a group footer sum"))
					.subtotalsOfPercentageAtGroupHeader(columnGroup, createPercSubtotal("This is a group header perc."))
					.subtotalsOfPercentageAtGroupFooter(columnGroup, createPercSubtotal("This is a group footer perc."))

					.setDataSource(createDataSource())// set datasource
					.show();// create and show report
		} catch (DRException e) {
			e.printStackTrace();
		}
	}

	private AggregationSubtotalBuilder<Integer> createSubtotal(String label) {
		return sbt.sum(column2).setLabel(label).setLabelStyle(boldStyle);
	}

	private PercentageSubtotalBuilder createPercSubtotal(String label) {
		return sbt.percentage(column2).setLabel(label).setLabelStyle(boldStyle);
	}

	private JRDataSource createDataSource() {
		DRDataSource dataSource = new DRDataSource("column1", "column2");
		int row = 1;
		for (int i = 1; i <= 2; i++) {
			for (int j = 0; j < 50; j++) {
				dataSource.add("group" + i, row++);
			}
		}
		return dataSource;
	}

	public static void main(String[] args) {
		new SubtotalReport();
	}
}
 
Tags: subtotal, percentage

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