Java tutorial
/* * See the NOTICE file distributed with this work for additional * information regarding copyright ownership. * * This 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 software 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 software; if not, write to the Free * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA * 02110-1301 USA, or see the FSF site: http://www.fsf.org. */ package com.xpn.xwiki.plugin.charts.plots; import org.jfree.chart.axis.NumberAxis; import org.jfree.chart.plot.Plot; import org.jfree.chart.plot.XYPlot; import org.jfree.chart.renderer.xy.XYItemRenderer; import org.jfree.data.xy.XYDataset; import com.xpn.xwiki.plugin.charts.ChartCustomizer; import com.xpn.xwiki.plugin.charts.exceptions.DataSourceException; import com.xpn.xwiki.plugin.charts.exceptions.GenerateException; import com.xpn.xwiki.plugin.charts.params.ChartParams; import com.xpn.xwiki.plugin.charts.source.DataSource; /** * This class is not used directly but through area, bar and line (there is a sort of dynamic inheritance here) */ public class XYPlotFactory { private static XYPlotFactory uniqueInstance = new XYPlotFactory(); private XYPlotFactory() { // empty } public static XYPlotFactory getInstance() { return uniqueInstance; } public Plot create(DataSource dataSource, XYItemRenderer renderer, ChartParams params) throws GenerateException, DataSourceException { NumberAxis domainAxis = new NumberAxis(); NumberAxis rangeAxis = new NumberAxis(); ChartCustomizer.customizeNumberAxis(domainAxis, params, ChartParams.AXIS_DOMAIN_PREFIX); ChartCustomizer.customizeNumberAxis(rangeAxis, params, ChartParams.AXIS_RANGE_PREFIX); XYDataset dataset = TableXYDatasetFactory.getInstance().create(dataSource, params); XYPlot plot = new XYPlot(dataset, domainAxis, rangeAxis, renderer); ChartCustomizer.customizeXYPlot(plot, params); return plot; } }