I'm developing an agenda using the rich:calendar. In each day cell I'd like to put a selectable and modifiable list of events of the day (similar to google calendar or the one in the teamwork project). I'm trying to put a instance of the ListaDataModel (containing objects with name property) into the HashMap used by the dataModel attribute of the calendar. Here is the code:

<rich:calendar id="calendarAttivita" datePattern="dd/MM/yyyy"
 enableManualInput="false" popup="false" mode="ajax"
 styleClass="fontMedium" cellWidth="50px"
 dataModel="#{myDataModel}">



 <!-- Customization with usage of facets and accessible elements -->



 <f:facet name="weekDay">

 <h:panelGroup style="width:60px; overflow:hidden;" layout="block">

 <h:outputText value="{weekDayLabelShort}" />

 </h:panelGroup>

 </f:facet>

 <f:facet name="weekNumber">

 <h:panelGroup>

 <h:outputText value="{weekNumber}" style="color:red" />

 </h:panelGroup>

 </f:facet>

 <f:facet name="footer">

 <h:panelGrid columns="3" width="100%"
 columnClasses="fake, width100 talign">

 <h:outputText value="{previousMonthControl}"
 style="font-weight:bold;" />

 <h:outputText value="{currentMonthControl}"
 style="font-weight:bold;" />

 <h:outputText value="{nextMonthControl}"
 style="font-weight:bold;" />

 </h:panelGrid>

 </f:facet>

 <h:panelGrid>

 <f:facet name="header">
 <h:outputText value="{day}" />
 </f:facet>

 </h:panelGrid>


 <rich:dataList var="record"
 value="{data.eachDayDataList}">
 <h:outputText value="#{record.name}"></h:outputText>
 </rich:dataList>


 </rich:calendar>

And this is the CalendarDataModel used by the attibute dataModel="#{myDataModel}"> in the calendar tag:

public class myDataModel implements CalendarDataModel {
 @Override
 public CalendarDataModelItem[] getData(Date[] arg0) {
 if (arg0 == null) {
 throw new IllegalArgumentException(
 "Null date array argument for getData.");
 }
 CalendarDataModelItem[] items = new CalendarDataModelItem[arg0.length];
 for (int i = 0; i < arg0.length; i++) {
 items = createDataModelItem(arg0);
 }

 return items;
 }

 private CalendarDataModelItem createDataModelItem(Date date) {
 CalendarDataModelItemImpl item = new CalendarDataModelItemImpl();
 HashMap<String, Object> data = new HashMap<String, Object>();
 FacesContext facesContext = FacesContext.getCurrentInstance();
 ExternalContext externalContext = facesContext.getExternalContext();
 DefinitionManager definitionManager = (DefinitionManager) externalContext
 .getSessionMap().get("definitionManager");
 ListDataModel listDataModel = definitionManager.getScheduledJobList(date); // Here I'm retrieving the list for each day

 item.setEnabled(true);


 data.put("eachDayDataList", listDataModel);


 item.setData(data);

 return item;
 }

 @Override
 public Object getToolTip(Date arg0) {
 // TODO Auto-generated method stub
 return null;
 }

 public LavoriSchedulatiDataModel() {
 // TODO Auto-generated constructor stub
 }

}

the last class involved :

public class CalendarDataModelItemImpl implements CalendarDataModelItem {
 HashMap<String, Object> data;
 int day;
 boolean enabled;
 Object toolTip;
 private String style;

 public Object getData() {
 // TODO Auto-generated method stub
 // return "9:00 Riunione<br/>10:00 Incontro Magistrato<br/>";
 return data;
 }

 /**
 * Returns: day of the month on which data must be shown.
 */
 public int getDay() {
 // TODO Auto-generated method stub
 return day;
 }

 public String getStyleClass() {
 return style;
 }

 public Object getToolTip() {

 return toolTip;
 }

 public boolean hasToolTip() {

 return toolTip != null;
 }

 public boolean isEnabled() {

 return enabled;
 }

 /**
 *
 * @param data
 * HashMap containing mappings like listaLavori ListaDataModel
 * containing the jobs
 */
 public void setData(HashMap<String, Object> data) {
 this.data = data;
 }

 public void setDay(int day) {
 this.day = day;
 }

 public void setEnabled(boolean enabled) {
 this.enabled = enabled;
 }

 public void setToolTip(Object toolTip) {
 this.toolTip = toolTip;
 }

 public void setStyleClass(String style) {
 this.style = style;

 }

}

But when I use the datamodel in this manner I get :java.lang.NoSuchMethodException: Property 'volatility' has no getter method.

So my question is:
can I put something else then strings (collections for example) into the HashMap used by the CalendarDataModel and the use them for uicomponents inside each day cell of the calendar ?