How do I dynamically change the content of a facet in a custom component?

Suppose I want to extend an existing JSF component eg <rich:datatable/>

. My main requirement is to dynamically change the content <f:facet>

in order to change its content.

What is the best way to achieve this? Or where is the best place in your code to achieve this?

In mine faces-config.xml

, I have the following declaration:

<faces-config>
    ...
    <component>
        <component-type>my.component.dataTable</component-type>
        <component-class>my.project.component.table.MyHtmlDataTable</component-class>
    </component>
    ...
    <render-kit>
        <render-kit-id>HTML_BASIC</render-kit-id>
        <renderer>
            <component-family>org.richfaces.DataTable</component-family>
            <renderer-type>my.renderkit.dataTable</renderer-type>
            <renderer-class>my.project.component.table.MyDataTableRenderer</renderer-class>
        </renderer>
        ...

      

        
        
        
      

    

Also, my file my-project.taglib.xml

(how I use Facelets) looks like this:

<facelet-taglib>
    <namespace>http://my.project/jsf</namespace>
    <tag>
        <tag-name>dataTable</tag-name>
        <component>
            <component-type>my.component.dataTable</component-type>
            <renderer-type>my.renderkit.dataTable</renderer-type>
        </component>
    </tag>

      

        
        
        
      

    

So, as you can see, I have two classes in my project for my custom datatable: MyHtmlDataTable

and MyDataTableRenderer

. One of my ideas is to change the content <f:facet>

directly in the method of doEncodeBegin()

my renderer. It works (actually almost works ), but I really don't think the best place for my modification is.

What do you think?

Technical info: JSF 1.2, Facelets, Richfaces 3.3.2, Java 1.6