Rowkey is null when celledit with LazyDataModel - jsf

Question

I am using PrimeFaces 6.1. I have implemented LazyDataModel and I am able to load the rows, owever, when I update a cell, the method onCellEdit is called but event.rowKey is always null.
<p:dataTable emptyMessage="Nessun record trovato."
style="margin-top: 50px" id="cars" var="produit"
value="#{gecomparBean.lazyModel}"
editable="true" editMode="cell" widgetVar="carsTable"
filteredValue="#{gecomparBean.filteredCars}"
rows="10"
lazy="true"
scrollRows="10"
scrollable="true" liveScroll="true" scrollHeight="250"
resizableColumns="true" resizeMode="expand"
draggableColumns="true"
rowStyleClass="#{produit.id == gecomparBean.selectedObject.id ? 'selectedRow' : null}"
>
<p:ajax event="colReorder"
listener="#{gecomparBean.onColumnReorder}" />
<p:ajax event="cellEdit" listener="#{gecomparBean.onCellEdit}"
oncomplete="updateTable()" update=":form:remote" />
Managed Bean: [Session scoped]
wrapper.setSession(activeSession.getId());
lazyModel = new LazyProductDataModel(wrapper);
LazyProductDataModel
public class LazyProductDataModel extends LazyDataModel<ProductSessionDTO> implements Serializable {
private List<ProductSessionDTO> products;
private ProductSearchWrapper wrapper;
public LazyProductDataModel(ProductSearchWrapper wrapp) throws RestRequestException {
super();
wrapper = wrapp;
}
#Override
public ProductSessionDTO getRowData(String rowKey) {
for (ProductSessionDTO car : getProducts()) {
if (car.getId() == (Long.parseLong(rowKey))) {
return car;
}
}
return null;
}
#Override
public Object getRowKey(ProductSessionDTO car) {
return car.getId();
}
#Override
public List<ProductSessionDTO> load(int first, int pageSize, String sortField, SortOrder sortOrder, Map<String, Object> filters) {
List<ProductSessionDTO> data = new ArrayList<ProductSessionDTO>();
try {
System.out.println("First " + first + " Max " + pageSize);
wrapper.setFirst(first);
wrapper.setPageSize(pageSize);
products=ServiceUtils.getInstance().getProducts(wrapper);
if (getProducts() != null) {
Comparator<ProductSessionDTO> lengthComparator = new Comparator<ProductSessionDTO>() {
#Override
public int compare(ProductSessionDTO o1, ProductSessionDTO o2) {
return Long.compare(o1.getId(), o2.getId());
}
};
Collections.sort(products, lengthComparator);
}
} catch (RestRequestException ex) {
Logger.getLogger(LazyProductDataModel.class.getName()).log(Level.SEVERE, null, ex);
}
data = products;
//rowCount
int dataSize = data.size();
this.setRowCount(1000);
//paginate
if (dataSize > pageSize) {
try {
return data.subList(first, first + pageSize);
} catch (IndexOutOfBoundsException e) {
return data.subList(first, first + (dataSize % pageSize));
}
} else {
return data;
}
}
}
Note: I found a post which mentioned that we need to remove the rowkey in order for the getRowKey() to get called automatically - so I have removed that attribute.