Getting selected value from h:selectOneMenu

[notify]

I am using Seam 2.2.0 GA, deployed on JBoss 4.2.3 GA.
I am able to populate a h:selectOneMenu with the data from a (MySQL) table, but I can’t for the life of me get the selected value from the drop down menu back to my stateless session bean (SLSB), I’ve Google’d till the cows come home!

The “entity” is always null in my SLSB.

XMTL;
'
<h:outputLabel for="devicesToTrack">Device to track</h:outputLabel>
                <h:selectOneMenu id="devicesToTrack" required="true">
                    <s:selectItems value="#{devicesToTrackList}"
                    var="devicesToTrack"
                    label="#{devicesToTrack.devicesToTrackPK.deviceIdMobileNumber}"
                    itemValue="#{devicesToTrack}" 
                    noSelectionLabel="Please select"/>
                    <s:convertEntity/>
       
                    <a4j:support event="onchange" action="#{devicesToTrackBean.getDevicesToTrackCurrentLocation(devicesToTrack)}"/>
                   
                </h:selectOneMenu>
                <rich:message for="devicesToTrack">
                </rich:message>
'

SLSB;

'
@In (required = false)
    private DevicesToTrack devicesToTrack;
   
    @Out
    private List <DevicesToTrack> devicesToTrackList;
   
    /**
     *
     */
    public DevicesToTrackBean() {
    }
   
    @SuppressWarnings("unchecked")
     @Factory("devicesToTrackList") 
    public void getDevicesToTrack() {
         final Query query = entityManager.createQuery(GET_DEVICES_TO_TRACK);
         query.setParameter(ONE, "[e-mail]");
         
          devicesToTrackList = query.getResultList();
          log.info(">>>>> getDevicesToTrack devicesToTrackList size      = " + devicesToTrackList.size());
    }

    public void getDevicesToTrackCurrentLocation(Object o) {
    //public void getDevicesToTrackCurrentLocation() {
         //String s = (String) o;
         log.info(">>>>> getDevicesToTrackCurrentLocation o = " + o);
         devicesToTrack = (DevicesToTrack) o;
         log.info(">>>>> getDevicesToTrackCurrentLocation devicesToTrack = " + devicesToTrack);
         log.info(">>>>> getDevicesToTrackCurrentLocation devicesToTrack = " + devicesToTrack.getDevicesToTrackPK());
         
    }
'

Output in JBoss console;
11:34:30,672 INFO  [DevicesToTrackBean] >>>>> getDevicesToTrack devicesToTrackList size         = 3
11:34:30,734 INFO  [DevicesToTrackBean] >>>>> getDevicesToTrackCurrentLocation o = com.notifypinpoint.entity.DevicesToTrack@7ab991
11:34:30,734 INFO  [DevicesToTrackBean] >>>>> getDevicesToTrackCurrentLocation devicesToTrack = com.notifypinpoint.entity.DevicesToTrack@7ab991
11:34:30,734 INFO  [DevicesToTrackBean] >>>>> getDevicesToTrackCurrentLocation devicesToTrack = null

[cosmo]

I think you are missing the value attribute in the h:selectOneMenu.

h:selectOneMenu attributes

[notify]

<blockquote>
_Aldo Bonzi wrote on Sep 14, 2009 16:45:_<br/>

I think you are missing the value attribute in the h:selectOneMenu.

</blockquote>

Yes. Added;

  <h:selectOneMenu id="devicesToTrack" value="#{devicesToTrack}" required="true">

and it works. Wasted days on this.

Many thanks.