I'm trying to dynamically build a form by looping over a set of fields that have a renderer attribute, which is used to tell what widget should be used to renderer them.

The problem I'm facing is when the widget is a select element. In this case, the nested f:selectItems load their data from a bean that, if I understand well the documentation, cannot be specified at runtime. Thus, I have hardcoded the bean that provides the data to the select boxes (dataProviderBean.selectItems in my simplified example below). But when the form is rendering, I haven't found any mean by which dataProviderBean can know which select element is being populated.

What's the best approach for solving this problem ?

<h:dataTable var="field" value="#{fieldSet}">
 <h:column>
 #{field.name}
 </h:column>

 <h:column>
 <h:inputText value="#{field.value}"
 rendered="#{field.renderer.isInputText}"/>

 <h:selectManyListbox value="#{field.value}"
 rendered="#{field.renderer.isManyListBox}">
 <f:selectItems value="#{dataProviderBean.selectItems}"/>
 </h:selectManyListbox>

 <h:selectManyCheckbox value="#{field.value}"
 rendered="#{field.renderer.isManyselectManyCheckbox}">
 <f:selectItems value="#{dataProviderBean.selectItems}"/>
 </h:selectManyCheckbox>
 </h:column>
</h:dataTable>