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DynamicReports is an open source Java reporting library based on JasperReports. It allows to create dynamic report designs and it doesn't need a visual report designer.
You can very quickly create reports and produce documents that can be displayed, printed or exported into many popular formats such as PDF, Excel, Word and others.
/**
* DynamicReports - Free Java reporting library for creating reports dynamically
*
* Copyright (C) 2010 - 2016 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 .
*/
package net.sf.dynamicreports.report.builder.datatype;
import java.util.List;
import net.sf.dynamicreports.report.base.datatype.AbstractDataType;
import net.sf.dynamicreports.report.base.expression.AbstractValueFormatter;
import net.sf.dynamicreports.report.constant.Constants;
import net.sf.dynamicreports.report.constant.HorizontalTextAlignment;
import net.sf.dynamicreports.report.defaults.Defaults;
import net.sf.dynamicreports.report.definition.ReportParameters;
import net.sf.dynamicreports.report.definition.expression.DRIValueFormatter;
/**
* @author Ricardo Mariaca ([email protected])
*/
@SuppressWarnings("rawtypes")
public class ListType extends AbstractDataType {
private static final long serialVersionUID = Constants.SERIAL_VERSION_UID;
private static ListFormatter listFormatter = new ListFormatter();
@Override
public DRIValueFormatter getValueFormatter() {
return listFormatter;
}
@Override
public String getPattern() {
return Defaults.getDefaults().getStringType().getPattern();
}
@Override
public HorizontalTextAlignment getHorizontalTextAlignment() {
return Defaults.getDefaults().getStringType().getHorizontalTextAlignment();
}
private static class ListFormatter extends AbstractValueFormatter {
private static final long serialVersionUID = Constants.SERIAL_VERSION_UID;
@Override
public String format(List values, ReportParameters reportParameters) {
StringBuffer result = new StringBuffer();
for (Object value : values) {
if (result.length() > 0) {
result.append("\n");
}
if (value != null) {
result.append(value.toString());
}
}
return result.toString();
}
}
}