Somebody help: JSF validation issue

Question

Hi,
It's my first project using JSF. There is a jsp listing customer info with an h:dataTable component, and at the top of the page there is a form with several fields such as name, age and so on therefore the user can add a new customer. The user can edit an existing customer in that form as well, by selecting one of the rows of the dataTable.
The name field is constrained by a required="true" attribute. The problem I encounted was: I clicked the "Add" button with the name field(<h:inputText id="name">) keeping blank, validation failed, and that's what I expected. Then I selected a customer from the dataTable, but the customer info did not appear at the upper form fields, though it seems that a customer had been selected to be updated.
Below are the code snippets of the jsp & backing bean(I'm sorry for the formatting):
<f:view>
       <h:form>
              <h:inputHidden value="#{custBean.editing}"/>
             <h:inputHidden value="#{custBean.selectedId}"/>
            <h:outputLabel for="name" value="Name:"/>
            <h:inputText id="name" value="#{custBean.name}" required="true"/>
           <h:message for="name"/>
           <h:commandButton rendered="#{custBean.editing}" value="Update" action="#{custBean.update}"/>
          <h:commandButton rendered="#{custBean.editing}" value="Cancel" action="#{custBean.cancel}"/>
         <h:commandButton rendered="#{not custBean.editing}" value= "Add" action= "#{custBean.add}"/>
    <h:form>
    <h:form>
         <h:dataTable value="#{csutBean.custModel}" var="cust">
               <h:column>
                        <f:facet name="header">
                               <h:outputText value="Name"/>
                        </f:facet>
                    <h:outputText value="#{cust.name}"/>
              </h:column>
              <h:column>
                      <h:commandButton value="Edit" action="#{custBean.selectForUpdate}" immediate="true"/>
               </h:column>
          </h:dataTable>
    </h:form>
</f:view>
// CustomersBean.java
// imports...
public class CustomersBean extends Object{
        private int selectedId;
        private String name;
        private DataModel custModel;
        public int getSelectedId()
               return selectedId;
        public void setSelectedId(int id)
              selectedId= id;
         public boolean isEditing()
                return editing;
         public void setEditing(boolean editing)
                this.editing= editing;
          public void DataModel getCustModel()
                  if(null== custModel)
                          custModel= new ListDataModel();
                  List<Customer> cl= SomeOtherBean.getCustomers();
                  custModel.setWrappedData(cl);
                  return custModel;
          public void add()
                 Customer cust= new Customer();
                cust.setName(name);
                 SomeOtherBean.add(cust);
               cancel();
         public void update()
                Customer cust= new Customer();
                cust.setId(selectedId);
                cust.setName(name);
                 SomeOtherBean.update(cust);
                 cancel();
          public void selectForUpdate()
                  selectedId= ((Customer)custModel.getRowData).getId();
                   editing= true;
          public void cancel()
                    editing= false;
                   name="";
}

Answer 1

I did not express the issue clearly. It would work well if I revoke the "required" atribute from the "name" inputText. Validation is the root cause I think.
I do have a POJO named Customer to hold the row data, and it could be called a DTO right? The editing property is just a flag indicating user action status. And the selectedId property may be delegated from the id property of the Customer POJO.
Thanks for the interesting article anyway.