ExpressionColumnReport

EmptyColumnReport

Examples overview

PercentageColumnsReport

ExpressionColumnReport

/**
 * 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.column;

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

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

import net.sf.dynamicreports.examples.Templates;
import net.sf.dynamicreports.report.base.expression.AbstractSimpleExpression;
import net.sf.dynamicreports.report.builder.FieldBuilder;
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 ExpressionColumnReport {
        private FieldBuilder<Integer> quantityField;

        public ExpressionColumnReport() {
                build();
        }

        private void build() {
                try {
                        report()
                          .setTemplate(Templates.reportTemplate)
                          .fields(
                                field("orderdate", Date.class),
                                quantityField = field("quantity", Integer.class),
                                field("unitprice", BigDecimal.class))
                          .columns(
                                col.column("Item", "item", type.stringType()),
                                col.column("Expression column", new ExpressionColumn()))
                          .title(Templates.createTitleComponent("ExpressionColumn"))
                          .pageFooter(Templates.footerComponent)
                          .setDataSource(createDataSource())
                          .show();
                } catch (DRException e) {
                        e.printStackTrace();
                }
        }

        private JRDataSource createDataSource() {
                DRDataSource dataSource = new DRDataSource("item", "orderdate", "quantity", "unitprice");
                dataSource.add("Notebook", new Date(), 1, new BigDecimal(500));
                return dataSource;
        }

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

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

                @Override
                public String evaluate(ReportParameters reportParameters) {
                        return
                                "Item = " + reportParameters.getValue("item") + ", " +
                                "Order date = " + type.dateType().valueToString("orderdate", reportParameters) + ", " +
                                "Quantity = " + type.integerType().valueToString(quantityField, reportParameters) + ", " +
                                "Unit price = " + type.bigDecimalType().valueToString("unitprice", reportParameters);
                }
        }
}