How to set a Map value in h:inputText
dictionary, jsf, jstl
Solution
Basically, what your code is attempting is invoking `Map.Entry#setValue(value)`. This is indeed not possible in EL. Instead, you should be referencing the map value directly on the map itself by key, so that EL can do `Map#put(key, value)`.
<c:forEach items="#{number.value}" var="case">
...
<h:inputText value="#{number.value[case.key]}" />
Problem
I'm struggling to implement a fairly trivial functionality with JSF which involves dynamically displaying the content of a nested map on a page and editing capabilities for its values. But it has turned out that the `MappedValueExpression$Entry` that you get when iterating over a map with `c:forEach` is not writable! ``` <c:forEach items='#{inflectionBean.word.inflectionalForms}' var="number" > <p:fieldset legend="#{number.key}"> <c:forEach items="#{number.value}" var="case" > <p:panel header="#{case.key}"> <h:inputText value="#{case.value}" /> </p:panel> </c:forEach> </p:fieldset> </c:forEach> ``` When I am trying to submit the above form I'm getting: javax.el.PropertyNotWritableException: /inflection.xhtml @39,56 value="#{case.value}": The class 'com.sun.faces.facelets.tag.jstl.core.MappedValueExpression$Entry' does not have a writable property 'value'. I wonder if there are reasonable workarounds or if I am approaching the problem in a wrong way. Thanks!