Question

Could some indicate a working example or a snippet of code for JasperReports regarding ArrayList as a Field in a javabean datasource.

I have a List of Employees. Each Employee has a name field, and an array of Phone with type and number as its fields.

Do i use a subreport for Phones I have not found a working example? Cant seem to compile subreport_jasper file?

Do i use a list component instead…

<c:list ...>
    <datasetRun subDataset="Addresses">
        <datasetParameter name="Phone">
            <datasetParameterExpression><![CDATA[$F{Phone}]]></datasetParameterExpression>
        </datasetParameter>
    </datasetRun>

This does seems to work either?

Thank in advance

Answer 1

I wrote this article while working with MongoDB. It deals with handling fields that are collections. It should be exactly what you need. (You can just ignore the MongoDB part.)

The key idea is that you use this to pass data to a List or Table or Subreport:

new net.sf.jasperreports.engine.data.JRMapCollectionDataSource($F{PhoneArray})