Dynamic app architecture

Question

I have application that displays customer data in the table form. I don’t know the data structure in advance, so I came up with the following architecture:
I have report.jsp page that include reporttable.jsp or custom reportable.jsp
report.jsp
        <f:subview id="invTable">
             <jsp:include page="#{reportBean.tableJsp}"/>
        </f:subview>
...tableJsp string is pointed to /reporttable.jsp or /customer1/reporttable.jsp depending on the customer needs.
reporttable.jsp
        <h:dataTable  id="tableData" value="#{reportBean.reportData}" var="rpt" >
       <c:forEach items="#{reportBean.columnNames}" var="name">
            <h:column>
           <f:facet name="header">
                <h:outputText value="#{name}" />
              </f:facet>
           <h:outputText value="#{rpt[name]}"/>
         </h:column>
       </c:forEach>
        </h:dataTable>
...For the customer that need something different I create customer1Bean that will return customized reportDate
/customer1/reportable.jsp
It maybe different from the generic jsp, but also can be almost the same except the bean it calls
        <h:dataTable  id="tableData" value="#{customer1Bean.reportData}" var="rpt" >
...I am wondering, if there is a way to call correct bean dynamically, so I don’t have to duplicate pages if they are the same.
I would appreciate any suggestions.
Irina.

Answer 1

Thank you, <af:switcher> will work, but a lot of code need to be duplicated.
If I have 10 customers that need to have something special in reportData I will need to duplicate table and whatever else needed 10 times when I need different reportBean.
<af:switcher facetName="#{userData.custName}" defaultFacet="default">
<f:facet name="default">
        <h:dataTable  id="tableData" value="#{reportBean.reportData}" var="rpt" >
       <c:forEach items="#{reportBean.columnNames}" var="name">
            <h:column>
           <f:facet name="header">
                <h:outputText value="#{name}" />
              </f:facet>
           <h:outputText value="#{rpt[name]}"/>
         </h:column>
       </c:forEach>
        </h:dataTable>
</f:facet >
<f:facet name="customer1">
        <h:dataTable  id="tableData" value="#{customer1.reportData}" var="rpt" >
       <c:forEach items="#{customer1.columnNames}" var="name">
            <h:column>
           <f:facet name="header">
                <h:outputText value="#{name}" />
              </f:facet>
           <h:outputText value="#{rpt[name]}"/>
         </h:column>
       </c:forEach>
        </h:dataTable>
</f:facet >
<f:facet name="customer2">
        <h:dataTable  id="tableData" value="#{customer2.reportData}" var="rpt" >
       <c:forEach items="#{customer2.columnNames}" var="name">
            <h:column>
           <f:facet name="header">
                <h:outputText value="#{name}" />
              </f:facet>
           <h:outputText value="#{rpt[name]}"/>
         </h:column>
       </c:forEach>
        </h:dataTable>
</f:facet >
</af:switcher>Solution that I have so far is (may not be the best):
in Class Customer I initialized reportBean based on customer name
        if(custName.equals("customer1"))
            reportBean = new Customer1Bean(reportMenuSel);
        else if(custName.equals("customer2"))
            reportBean = new Customer2Bean(reportMenuSel);
        else
            reportBean = new ReportBean(reportMenuSel);
..Customer1Bean extends ReportBean
In jsp page I called cust.reportBean.reportData which gave me an access to correct reportData without duplicating jsp code.
        <h:dataTable  id="tableData" value="#{cust.reportBean.reportData}" var="rpt" >
       <c:forEach items="#{ cust.reportBean.columnNames}" var="name">
            <h:column>
           <f:facet name="header">
                <h:outputText value="#{name}" />
              </f:facet>
           <h:outputText value="#{rpt[name]}"/>
         </h:column>
       </c:forEach>
        </h:dataTable>
...Irina.