SelectMany checkbox value-binded with HashMap String,ArrayList

Question

Hello,
Someone can help me please?
Im trying to create a page with a lot of HtmlSelectManyCheckbox, and i need to value-bind then to the same Object in my BackingBean.
First i attemped to bind all HtmlSelectManyCheckbox with a single ArrayList, but only the last SelectMany had their values inserted on the ArrayList...
So, now im trying to bind all the HtmlSelectManyCheckbox with a HashMap<String,ArrayList>, because i would have just one object and for each entry I would have the checkboxes that were cheked in a single HtmlSelectManyCheckbox.
Now my question: there is a way to make this work?
my code example
Backing bean
private HashMap<String, ArrayList> respostaMatrizCheck = new HashMap<String, ArrayList>();
     public HashMap<String, ArrayList> getRespostaMatrizCheck() {
          return respostaMatrizCheck;
     public void setRespostaMatrizCheck(HashMap<String, ArrayList> respostaMatrizCheck) {
          this.respostaMatrizCheck = respostaMatrizCheck;and the bindings
<h:selectManyCheckbox value="#{backingBean.respostaMatrizCheck['1'] }">
<h:selectManyCheckbox value="#{backingBean.respostaMatrizCheck['2'] }">And the error message given when i tryed this is the following:
javax.servlet.ServletException: ValueBinding for UISelectMany must be of type List or Array
Any help would be welcome.
Thanks,
Ferry

Answer 1

Has anybody solved a problem like this? I am facing the same problem and no response helped me so far.
Here is the web code:
<h:selectManyCheckbox value="#{processor.languages.languages1}">
     <f:converter converterId="languageConverter" />
     <f:selectItems value="#{categoryController.allLanguagesAsSelectItems}" />
</h:selectManyCheckbox>My backing bean "processor" looks like this:
     public Map<String, List<MyObject>> getLanguages() {
          return languagesMap;
     }(The backing bean has no "setLanguages()-method" since I did not need any with Map<String, String> for example.)
The converter I use creates a "MyObject" instance in its "getAsObject" conversion method.
I think everything should be okay then but the exception I get after submitting the page is:
java.lang.IllegalArgumentException: ValueBinding for UISelectMany must be of type List or Array
     org.apache.myfaces.shared_impl.renderkit._SharedRendererUtils.getConvertedUISelectManyValue(_SharedRendererUtils.java:191)
     org.apache.myfaces.shared_impl.renderkit.RendererUtils.getConvertedUISelectManyValue(RendererUtils.java:630)
     org.apache.myfaces.shared_impl.renderkit.html.HtmlCheckboxRendererBase.getConvertedValue(HtmlCheckboxRendererBase.java:308)
     javax.faces.component.UISelectMany.getConvertedValue(UISelectMany.java:308)
     javax.faces.component.UIInput.validate(UIInput.java:350)
.....Edited by: rapthor on Oct 31, 2007 6:39 AM