The type JFreeChartRenderer is deprecated, what method should I use?

Question

I new with JFreeChart, I tried to used it in jasperreport, I have seen a question on how to insert a JFreechart object in jasperreport, and one of responses works, but the method used is deprecated:

JFreeChartRenderer jrc = new JFreeChartRenderer( SpiderChart.createChart2());

what is the new method to use ?

Answer 1

The direct substitution of JFreeChartRender is the DrawChartRendererImpl

new DrawChartRendererImpl(org.jfree.chart.JFreeChart chart, ChartHyperlinkProvider chartHyperlinkProvider);

another method is to provide an java.awt.image.BufferedImage, that you can retrive from JFreechart

BufferedImage bufferedImage = chart.createBufferedImage(width, height);

Note, however that the normally you included it directly in you jrxml (from IDE you can drag the chart component into the report)

Example of pie chart jrxml

<pieChart>
    <chart>
        <reportElement x="89" y="100" width="200" height="100" uuid="b96a1b13-4bf0-4983-8168-97b80abdae04"/>
        <chartTitle/>
        <chartSubtitle/>
        <chartLegend/>
    </chart>
    <pieDataset>
        <keyExpression><![CDATA[$F{fieldKey}]]></keyExpression>
        <valueExpression><![CDATA[$F{fieldValue}]]></valueExpression>
    </pieDataset>
    <piePlot>
        <plot/>
        <itemLabel/>
    </piePlot>
</pieChart>

These are the Standard chart types you can use, if you are using JasperSoft Studio (and similar in iReport) see Creating Charts and Datasets with Jaspersoft Studio