title: Add selectedValue from selectonemenu to list
body: <p>So, here's the deal:
  I have a selectOneMenu in my view:</p>
  
  <pre><code>&lt;p:selectOneMenu value="#{personBean.person.personStates.state}" id="estadoRg"
      converter="entityConverter"&gt;
      &lt;f:selectItems value="#{stateBean.states}" var="state" 
          itemLabel=#{state.name}" itemValue="#{state}"&gt;
      &lt;/f:selectItems&gt;
  &lt;/p:selectOneMenu&gt;
  </code></pre>
  
  <p>Where personStates is a list containing person, state n date.
  Is it possible to add the value from the itemValue directly to the personStates list? (I have a addPersonState method autobuilt in my PersonModel)</p>
  
  <p>If not, how should I do this?
  I don't want to add one state instance for each selectOneMenu (will be 5) in my personBean...
  Was it clear?</p>