/*
* DynamicJasper: A library for creating reports dynamically by specifying
* columns, groups, styles, etc. at runtime. It also saves a lot of development
* time in many cases! (http://sourceforge.net/projects/dynamicjasper)
*
* Copyright (C) 2008 FDV Solutions (http://www.fdvsolutions.com)
*
* This library 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 2.1 of the License, or (at your option) any later version.
*
* This library 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 this library; if not, write to the Free Software
*
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
*
*/
package ar.com.fdvs.dj.domain.chart.builder;
import ar.com.fdvs.dj.domain.builders.ChartBuilderException;
import ar.com.fdvs.dj.domain.chart.DJChart;
public abstract class AbstractChartBuilder {
protected DJChart chart;
public AbstractChartBuilder() {
chart = new DJChart(getChartType());
}
protected abstract byte getChartType();
public DJChart build() throws ChartBuilderException {
if (chart.getDataset().getColumnsGroup() == null) throw new ChartBuilderException("The group to wich the chart is related must be specified");
if (chart.getDataset().getColumns().isEmpty()) throw new ChartBuilderException("At least one column to wich the chart is related must be specified");
return chart;
}
}