Aggregate report

Question

I am building a report using JSF and Hibernate. The report has an aggregate function (COUNT). How do I store this value in my object? I am using dataTable to display the result set. I try to avoid creatting new object for reporting purpose, any good solution?
For example, my query is
SELECT aCol, bCol, cCol, COUNT(*)
FROM myTable
group by aCol, bCol, cCol
my jsp:
<t:dataTable id="data" styleClass="TabForegroundColor"
headerClass="standardTable_Header" footerClass="standardTable_Header"     
rowClasses="AltRows1, AltRows2"          
var="bl"
value="#{mydatahandler.myModel}"
preserveSort="true">

Answer 1

this is really more of an hibernate question, but you want to do something like this.
Query query = session
          .createQuery("select new model.reports.PastDueReport(change.requestnumber, change.requestcreationdate, change.expectedturnoverdate, " +
                    "change.risklevel, change.currentstatus, change.targetplatform, change.requesteruserid, change.shortdescription, " +
                    "change.problem, change.exception, change.fastpass) from ChangeRequest change where change.currentstatus = 'open' and change.expectedturnoverdate <= sysdate");
          openChangeReport = (List) query.list();PastDueReport is a value object with the attributes you need to map to the hql statement you are creating. openChangeReport is a List of those value objects. Just insert your sql and create your mapped object.