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newbie: dataset passing parameters to

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tonta_enzo
2006-09-28
2013-01-13
  • tonta_enzo
    tonta_enzo
    2006-09-28

    I am trying to pass parameter in as below, but I am getting a null pointer exception as it is not populating the bean.  Can anyone identify the problem?  Thanks.

    <%
    double [] data = {16.8, 24.7, 34.6, 11.4, 22.5};
    %>

    <HR>
    <jsp:useBean id="chartModel" class="com.stockdynamo.server.dataobject.WebChartData"/>
    <cewolf:chart
        id="timeChart"
        title="Chart Model"
        type="timeseries"
        xaxislabel="X label"
        yaxislabel="Y label">
        <cewolf:data>
            <cewolf:producer id="chartModel">
            <cewolf:param name="chartData" value='<%= (Serializable)data%>' />
           
            </cewolf:producer>
        </cewolf:data>
    </cewolf:chart>
    <p>
    <cewolf:img chartid="timeChart" renderer="cewolf" width="400" height="300"/>
    <P>