How to Add Sorting to Columns from another List

[asimshaikh1]

I have Column Named CaseNo in Table EventMaster  (It is concatenation of Case No "of " Year I am fetching CaseNo from CaseMaster and Year from YearMaster ) .Now I wanted to Sort this column How can I achieve this .

<rich:dataTable value="#{eventMaster.eventMasterList}" var="event" id="table"

                                                                rows="10" rowClasses="even-row, odd-row ">

                                                    <rich:column  style="width:7%;">

                                                        <f:facet name="header">#{lbl['label.casenumber']}</f:facet>

                                                        <h:outputText value="#{event.caseNo}"/>

                                                    </rich:column>

                                                    <rich:column style="width:12%;">

                                                        <f:facet name="header">#{lbl['label.scheduleevent']}</f:facet>

                                                        <h:outputText value="#{event.eventDateString}"/>

                                                    </rich:column>

Criteria crt = session.createCriteria(merc.dao.EventMasterDao.class).add(Restrictions.eq("isDeleted", "N")).addOrder(Order.asc("eventDate"));

            fetchList = (ArrayList<EventMasterDao>) crt.list();