[Trinidad] and autoSubmit

[David Heffelfinger]

Hello,

Before describing my problem, I need to disclose that I am new to Trinidad,
therefore it is entirely possible I am missing something obvious.

Not sure if it matters, I am using Trinidad 1.2.3, deploying on GlassFish 2.


I am trying to update the options in one <tr:selectOneOption> when the value
of another <tr:selectOneOption> changes. Based on what I read at
http://myfaces.apache.org/trinidad/devguide/ppr.html#autoSubmit, this should
be fairly simple:
set autoSubmit="true" on the first <tr:selectOneOption>, bind its
valueChangeListener property to a method to be executed when the value of
the component changes, and set the partialTriggers property of the second
<tr:selectOneOption> to the id of the first one.

I attempted this procedure to no avail, I don't think the first
<tr:selectOneOption> is triggering a partial submit at all. I Googled around
and found some example code in the archives for this list:
http://www.mail-archive.com/users@myfaces.apache.org/msg43646.html

The code shown in this message was very similar to what I had, but since
mine wasn't working and this one allegedly was, I pretty much copied and
pasted both the JSP and the backing bean code, but unfortunately it still
didn't work.

My JSP looks like this:

<jsp:root xmlns:jsp="http://java.sun.com/JSP/Page"; version="2.1"
xmlns:f="http://java.sun.com/jsf/core";
xmlns:h="http://java.sun.com/jsf/html";
xmlns:tr="http://myfaces.apache.org/trinidad "
xmlns:trh="http://myfaces.apache.org/trinidad/html";>
  <f:view>
    <tr:document id="document1">
      <tr:form id="form1">
        <tr:panelFormLayout id="panelFormLayout1">
          <tr:selectOneChoice label="Select one:"
                              required="true"
                              requiredMessageDetail="You must select one"
                              unselectedLabel="Select one..."
                              value="#{testBean.firstSelection}"
                              readOnly="false"
                              valueChangeListener="#{
testBean.selectionChange}"
                              autoSubmit="true"
                              id="firstSelection"
                              immediate="true">
            <f:selectItems value="#{testBean.firstList}" id="selectItems1"
/>
          </tr:selectOneChoice>

          <tr:selectOneChoice  id="selectOneChoice2"
                               label="Select:"
                               unselectedLabel="Select another one..."
                               value="#{testBean.secondSelection}"
                               rendered="true"
                               partialTriggers="firstSelection">
            <f:selectItems value="#{testBean.secondList}" id="selectItems2"
/>
          </tr:selectOneChoice>
        </tr:panelFormLayout>
      </tr:form>
    </tr:document>
  </f:view>
  </jsp:root>

and the backing bean looks like this (package, imports, getters and setter
ommited):

public class Foo
{
  private String firstSelection;
  private String secondSelection;
  private List<SelectItem> secondList;

  public void selectionChange(ValueChangeEvent event)
  {
    String value = (String) event.getNewValue();
    if (value.equals("a"))
    {
      secondList = Arrays.asList(new SelectItem("apple"));
    }
    else if (value.equals("b"))
    {
      secondList = Arrays.asList(new SelectItem("blue"));
    }
  }

After packaging and deploying, I change the value of the first
<tr:selectOneChoice>, but the options of the second one don't change. Can
someone please point out what am I doing wrong?

I have attached a zip file containing the whole project, buildable with
Maven, in case someone wants to try it out.

Thanks in advance for any help.

David
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