Adding a Dropdown listbox - Issue beginner

I have a开发者_如何学Pythonsked this question several times in this and various other forums, but still unable to implement it in my code.

I am doing this example , and i need to add a listbox (like in the column MANUFACTURE). i am unable to display the Listbox or populate it with values from my Java class.

My java code looks like this;

private List<Hotel> listHotel; 


public List<Hotel> ListAllHotels() {
    return dml.displayAllHotels(); //dml.displayAllHotels() returns a List<Hotel> 
}

Normally i create a listbox and populate it with values using the following JFS code;

            <h:selectOneMenu value="#{HotelDataForm.stationedHotel}" id="globalFilter" onchange="carsTable.filter()"   >
                <f:selectItems value="#{HotelDataForm.ListAllHotels}"  var="user" itemValue="#{user[1]}" itemDisabled="false" itemLabel="#{user[1]}" />
         <h:outputText value="#{carsTable[1]}" />
            </h:selectOneMenu>

And this works, but i am unable to add this code to the Manufacturer column in the link i posted. In the example they make use of SelectItem[] object to populate the listbox. I am clueless as in how to add and populate values to the manufacturer column in my program.

---

This is from the example on Page 131 of the PrimeFaces 2.2 Guide

If you’d like to use a dropdown instead of an inputtext to only allow predefined filter values use filterOptions attribute and a collection/array of selectitems as value. In addition, filterMatchMode defines the built-in matcher which is startsWith by default. Following is an advanced filtering datatable with these options demonstrated.

<p:column
        filterBy="#{car.manufacturer}" 
        headerText="Manufacturer"
        filterOptions="#{carBean.manufacturerOptions}" 
        filterMatchMode="exact">
    <h:outputText value="#{car.manufacturer}" />
</p:column>

So in this example, the carBean should have a method getManufacturerOptions() that returns either SelectItem[] or List<SelectItem> containing all the values that should be in the filter dropdown list.

REFERENCE: Javadoc for SelectItem