DropListener Not Invoked

[jgilbert]

For some reason my drop listener is not getting called. It did start working very briefly for no apparent reason, but then stopped again.

I have included the code. Can anyone see any reason for this not to work?

I am using 3.3.1.GA and phaseTracker shows that all the phases are executed...

 <rich:dragIndicator id="indicator" />

 <h:form id="planningForm">

 <h:panelGrid columns="2" width="100%"
 columnClasses="planning-column,planning-column">

 <h:panelGrid columns="1" width="100%">
 <c:forEach items="#{milestonePlanner.milestones}" var="mile">

 <tt:toggle-panel switchType="client"
 id="m#{mile.milestone.id}TP" opened="true" rendered="true"
 label="#{mile.milestone.name} (#{mile.milestone.date})">

 <rich:dropSupport id="m#{mile.milestone.id}Drop" acceptedTypes="Ticket"
 dropValue="#{mile.milestone}"
 dropListener="#{milestonePlannerDropListener.processDrop}"
 eventsQueue="viewQ"
 reRender="planningForm">
 </rich:dropSupport>

 <h:dataTable value="#{mile.tickets}" var="tic">
 <h:column>
 <a4j:outputPanel layout="block">
 <rich:dragSupport dragIndicator=":indicator"
 dragType="Ticket" dragValue="#{tic}">
 <rich:dndParam name="label" value="#{tic.title}" />
 </rich:dragSupport>
 <h:outputText value="#{tic.title}"></h:outputText>
 </a4j:outputPanel>
 </h:column>
 </h:dataTable>
 </tt:toggle-panel>

 </c:forEach>
 </h:panelGrid>

 <tt:toggle-panel switchType="client" id="unscheduledTP"
 opened="true" rendered="true" label="#{messages['Unscheduled']}">

 <rich:dropSupport id="unscheduledDrop" acceptedTypes="Ticket"
 dropValue="unscheduled"
 dropListener="#{milestonePlannerDropListener.processDrop}"
 eventsQueue="viewQ"
 reRender="planningForm">
 </rich:dropSupport>

 <h:dataTable value="#{milestonePlanner.unscheduled}" var="tic">

 <h:column>
 <a4j:outputPanel layout="block">
 <rich:dragSupport dragIndicator=":indicator"
 dragType="Ticket" dragValue="#{tic}">
 <rich:dndParam name="label" value="#{tic.title}" />
 </rich:dragSupport>
 <h:outputText value="#{tic.title}"></h:outputText>
 </a4j:outputPanel>
 </h:column>


 </h:dataTable>
 </tt:toggle-panel>

 </h:panelGrid>
 </h:form>

@Name("milestonePlanner")
@Scope(ScopeType.SESSION)
@AutoCreate
public class MilestonePlanner {

 ...

 @Name("milestonePlannerDropListener")
 @Scope(ScopeType.EVENT)
 @AutoCreate
 @Transactional
 public static class MilestonePlannerDropListener implements DropListener {

 public void processDrop(DropEvent dropEvent) {
 Dropzone dropzone = (Dropzone) dropEvent.getComponent();
 System.out.println("SRC: " + dropEvent.getSource());
 scheduleTicket(dropEvent.getDragValue(), dropzone.getDropValue());
 }

 public void scheduleTicket(Object drapTicket, Object dropValue) {
 System.out.println("DRAG: " + drapTicket + ", DROP: " + dropValue);
 }
 }
}

[jgilbert]

The problem appears to have been due to the fact that I was not caching my data objects between requests.

For example:

public List<Ticket> getUnscheduled() {
 Query qry = entityManager.createQuery("from Ticket");
 return qry.getResultList();
}

instead of

public List<Ticket> getUnscheduled() {
 if (unscheduled == null) {
 Query qry = entityManager.createQuery("from Ticket");
 unscheduled = qry.getResultList();
 }
 return unscheduled;
}