Why h:selectBooleanCheckbox not is updated? [duplicate] - list

Question

Here is the scenario (simplified):
There is a bean (call it mrBean) with a member and the appropriate getters/setters:
private List<String> rootContext;
public void addContextItem() {
rootContext.add("");
}
The JSF code:
<h:form id="a_form">
<ui:repeat value="#{mrBean.stringList}" var="stringItem">
<h:inputText value="#{stringItem}" />
</ui:repeat>
<h:commandButton value="Add" action="#{mrBean.addContextItem}">
<f:ajax render="#form" execute="#form"></f:ajax>
</h:commandButton>
</h:form>
The problem is, when clicking the "Add" button, the values that were entered in the <h:inputText/> that represent the Strings in the stringList aren't executed.
Actually, the mrBean.stringList setter (setStringList(List<String> stringList)) is never called.
Any idea why?
Some info -
I'm using MyFaces JSF 2.0 on Tomcat 6.

Answer 1

The String class is immutable and doesn't have a setter for the value. The getter is basically the Object#toString() method.
You need to get/set the value directly on the List instead. You can do that by the list index which is available by <ui:repeat varStatus>.
<ui:repeat value="#{mrBean.stringList}" varStatus="loop">
<h:inputText value="#{mrBean.stringList[loop.index]}" />
</ui:repeat>
You don't need a setter for the stringList either. EL will get the item by List#get(index) and set the item by List#add(index,item).