JSF-2. h:outputFormat. Complex f:param

Question

How can one parameter output become another parameter input (value)? Or in other words how can i build a complex parameter.

I tried to build parameter. Here is the code:

<h:outputFormat value="Final result is: {0}">
    <f:param>
        <h:outputFormat value="{0} to {1}">
            <f:param value="#{mngr.lowerBound}"/>
            <f:param value="#{mngr.upperBound}"/>
        </h:outputFormat>
    </f:param>
</h:outputFormat>

Answer 1

You can't using standard JSF functionality. But OmniFaces can do this for you. They implemented a special o:param tag.

For you case, that would be:

<h:outputFormat value="Final result is: {0}">
    <o:param>
        <h:outputFormat value="{0} to {1}">
            <f:param value="#{mngr.lowerBound}"/>
            <f:param value="#{mngr.upperBound}"/>
        </h:outputFormat>
    </o:param>
</h:outputFormat>