Subreports with Spring, Jasper reports and iReport

Hello,

I'm trying to set up some jasper subreports and i'm slightly confused.

I have the following view bean set up.

Code:

---


<bean id="investmentPlanReportView" class="org.springframework.web.servlet.view.jasperreports.JasperReportsPdfView">
       
    <property name="url" value="/WEB-INF/reports/InvestmentPlanReport.jrxml"/>
    <property name="reportDataKey" value="mainReportData"/>
               
    <property name="subReportUrls">
                    <map>
                        <entry key="trackerSubReport" value="/WEB-INF/reports/TrackerSubReport.jrxml"/>
                        <entry key="promotionsSubReport" value="/WEB-INF/reports/PromotionsSubReport.jrxml"/>
                    </map>
    </property>
               
               
    <property name="subReportDataKeys">
        <list>
                <value>trackerSubReportData</value>
                <value>promotionsSubReportData</value>
        </list>

    </property>
               
</bean>

---

and then in my controller I am populating the model with the appropriate collections.

My question is, how do I map the sub report data keys to the correct sub reports? I'm using iReport to build the jrxml files.

I realise that answering this will require some experience of iReport so maybe this is not the best place to ask.

regards,
Jordan.