[jbossseam-issues] [JBoss JIRA] Commented: (JBSEAM-3750) add time series charts

[Alain Raynaud (JIRA)]

    [ https://jira.jboss.org/jira/browse/JBSEAM-3750?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12481383#action_12481383 ] 

Alain Raynaud commented on JBSEAM-3750:
---------------------------------------

I looked at the example in itext, however the timeseries tag is using an empty dataset: dataset="#{chartseries.dataset}" (in chart.xhtml).

All my attempts at populating the dataset from Java have failed. I keep bumping into this error:

Caused by: java.lang.IllegalArgumentException: Cannot convert org.jfree.data.category.DefaultCategoryDataset at 28dd6067 of type class org.jfree.data.category.DefaultCategoryDataset to interface org.jfree.data.general.Dataset

I can even manage to have the two class names be exactly the same (Dataset), so the error message baffles a beginner like me.

I have tried stuff like (taken from an example):

    <p:chart chart="#{myEntity.chart}">
    </p:chart>

    public JFreeChart getChart() {
        return createChart(getDataset());
    }

    private JFreeChart createChart(Dataset dataset) {

    JFreeChart chart = ChartFactory.createStackedBarChart(
            "Public Opinion : Torture of Prisoners",
            "Country",                    // domain axis label
            "%",                 // range axis label
            (CategoryDataset) dataset,                      // data
            PlotOrientation.HORIZONTAL,   // orientation
            false,                        // include legend
            true,                         // tooltips?
            false                         // URLs?
        );

    return chart;
    }
    
    @BypassInterceptors
    public Dataset getDataset() {
        DefaultCategoryDataset dataset = new DefaultCategoryDataset();

        dataset.addValue(81.0, "Against all torture", "Italy");
        
        return  dataset;
    }


> add time series charts
> ----------------------
>
>                 Key: JBSEAM-3750
>                 URL: https://jira.jboss.org/jira/browse/JBSEAM-3750
>             Project: Seam
>          Issue Type: Feature Request
>          Components: PDF
>            Reporter: Yan Langlois
>            Assignee: Norman Richards
>             Fix For: 2.1.2.CR1
>
>
> It would be great to have the possibility to diplay only a couple of label on a chart (x-axis). for example : display months instead of days (like in this chart : http://www.jfree.org/jfreechart/images/PriceVolumeDemo1.png)

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