PrintWhenExpressionReport

PageFormatReport

Examples overview

ResourceBundleReport

PrintWhenExpressionReport

/**
 * 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.miscellaneous;

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.column.TextColumnBuilder;
import net.sf.dynamicreports.report.builder.component.TextFieldBuilder;
import net.sf.dynamicreports.report.builder.component.VerticalListBuilder;
import net.sf.dynamicreports.report.builder.group.ColumnGroupBuilder;
import net.sf.dynamicreports.report.constant.Constants;
import net.sf.dynamicreports.report.constant.GroupHeaderLayout;
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 PrintWhenExpressionReport {

        public PrintWhenExpressionReport() {
                build();
        }

        private void build() {
                TextColumnBuilder<String> itemColumn = col.column("Item", "item", type.stringType());

                ColumnGroupBuilder itemGroup = grp.group("itemGroup", itemColumn)
                        .setHeaderLayout(GroupHeaderLayout.EMPTY);

                TextFieldBuilder<String> groupHeader = cmp.text(new GroupHeaderExpression())
                        .setStyle(Templates.groupStyle)
                        .setPrintWhenExpression(new PrintGroupHeaderExpression())
                        .removeLineWhenBlank();

                VerticalListBuilder oddPageHeader = cmp.verticalList()
                        .add(
                                cmp.text("Odd page header").setStyle(Templates.bold12CenteredStyle),
                                cmp.line())
                        .setPrintWhenExpression(new PrintInOddPageExpression())
                        .removeLineWhenBlank();

                VerticalListBuilder evenPageHeader = cmp.verticalList()
                        .add(
                                cmp.line(),
                                cmp.text("Even page header").setStyle(Templates.bold12CenteredStyle),
                                cmp.line())
                        .setPrintWhenExpression(new PrintInEvenPageExpression())
                        .removeLineWhenBlank();

                try {
                        report()
                          .setTemplate(Templates.reportTemplate)
                          .setPageColumnsPerPage(2)
                          .setPageColumnSpace(5)
                          .columns(
                                itemColumn,
                                col.column("Quantity",   "quantity",  type.integerType()),
                                col.column("Unit price", "unitprice", type.bigDecimalType()))
                          .groupBy(itemGroup)
                          .title(Templates.createTitleComponent("PrintWhenExpression"))
                          .detailHeader(
                                cmp.columnBreak().setPrintWhenExpression(new PrintGroupHeaderColumnBreakExpression()),
                                groupHeader)
                          .pageHeader(
                                oddPageHeader, evenPageHeader, cmp.verticalGap(10))
                          .pageFooter(Templates.footerComponent)
                          .setDataSource(createDataSource())
                          .show();
                } catch (DRException e) {
                        e.printStackTrace();
                }
        }

        private JRDataSource createDataSource() {
                DRDataSource dataSource = new DRDataSource("item", "quantity", "unitprice");
                for (int i = 0; i < 50; i++) {
                        dataSource.add("DVD", (int) (Math.random() * 10) + 1, new BigDecimal(Math.random() * 100 + 1));
                }
                for (int i = 0; i < 50; i++) {
                        dataSource.add("Book", (int) (Math.random() * 10) + 1, new BigDecimal(Math.random() * 100 + 1));
                }
                return dataSource;
        }

        public class GroupHeaderExpression extends AbstractSimpleExpression<String> {
                private static final long serialVersionUID = Constants.SERIAL_VERSION_UID;

                @Override
                public String evaluate(ReportParameters reportParameters) {
                        return reportParameters.getValue("item");
                }
        }

        public class PrintGroupHeaderExpression extends AbstractSimpleExpression<Boolean> {
                private static final long serialVersionUID = Constants.SERIAL_VERSION_UID;

                @Override
                public Boolean evaluate(ReportParameters reportParameters) {
                        return reportParameters.getColumnRowNumber() == 1 || reportParameters.getGroupCount("itemGroup") == 1;
                }
        }

        public class PrintGroupHeaderColumnBreakExpression extends AbstractSimpleExpression<Boolean> {
                private static final long serialVersionUID = Constants.SERIAL_VERSION_UID;

                @Override
                public Boolean evaluate(ReportParameters reportParameters) {
                        return reportParameters.getColumnRowNumber() == 1 && reportParameters.getGroupCount("itemGroup") != 1;
                }
        }

        public class PrintInOddPageExpression extends AbstractSimpleExpression<Boolean> {
                private static final long serialVersionUID = Constants.SERIAL_VERSION_UID;

                @Override
                public Boolean evaluate(ReportParameters reportParameters) {
                        return reportParameters.getPageNumber().doubleValue() % 2 != 0;
                }
        }

        public class PrintInEvenPageExpression extends AbstractSimpleExpression<Boolean> {
                private static final long serialVersionUID = Constants.SERIAL_VERSION_UID;

                @Override
                public Boolean evaluate(ReportParameters reportParameters) {
                        return reportParameters.getPageNumber().doubleValue() % 2 == 0;
                }
        }

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