Question

Here is what I am trying to do:

<ui:repeat value="#{foo}" var="keyprefix">
  <p:inputText value="#{someBean.someMap[keyprefix + 'somesuffix']}" />              
</ui:repeat>

I have tried using fn:join which doesn’t work. I tried using .concat() but I am not on 2.2, I’m still using 2.1. Is there a simple way to do this I’m missing?

Answer 1

You can use <c:set> to prepare the dynamic map key by just inlining the EL expression in the string literal the usual way.

<c:set var="key" value="#{keyprefix}somesuffix" />
<p:inputText value="#{someBean.someMap[key]}" />