I have a Primefaces 6.0 DataTable working with a LazyDataModel bean. After I changed to the lazy implementation, the cell edition stopped working.
The reason for that is whenever I call my onCellEdit method, and try to get the clicked row contents by calling event.getRowkey() , I get a null object.
As per Primefaces Documentation I'm have a rowKey attribute to bind the tuple with the bean value, but it doesn't seems to work.
EDIT: I can update the value now, but the dataTable doesn't reload the cell UiElement. To see the changes i have to F5 the page.
<p:tabView id="tab" value="#{setorMB.listaSetor}" var="tabView"
activeIndex="#{ataGerencialMB.activeTabIndex}">
<p:ajax event="tabChange" listener="#{ataGerencialMB.onTabChange}"
update="tab ,formListagemCapacitacao" />
<p:tab title="#{tabView.sigla}">
<p:dataTable id="dtCapacitacao"
value="#{ataGerencialMB.lazyModelAtaGerencial}"
var="gerencial"
lazy="true"
paginator="true"
rows="#{Config.NUM_ROWS}"
currentPageReportTemplate="#{Config.CURRENT_PAGE_REPORT_TEMPLATE}"
paginatorTemplate="#{Config.PAGINATOR_TEMPLATE}"
rowsPerPageTemplate="#{Config.ROWS_PER_PAGE_TEMPLATE}"
sortBy="#{gerencial.idAta}"
sortOrder="ascending"
reflow="true"
editable="true"
editMode="cell"
rowKey="#{gerencial.idAta}">
<p:ajax event="cellEdit"
listener="#{ataGerencialMB.onCellEdit}" oncomplete="onCellEdit()"/>
<p:column>
<p:rowToggler/>
</p:column>
<p:column headerText="Tipo Assunto" >
<p:cellEditor>
<f:facet name="output">
<h:outputText value="#{gerencial.tipo}"
rendered="true" />
</f:facet>
<f:facet name="input">
<p:inputTextarea id="tipo"
value="#{gerencial.tipo}"
style="width:96%" />
</f:facet>
</p:cellEditor>
</p:column>
</p:dataTable>
</p:tab>
</p:tabView>
public class AtaGerencialLazyDataModel extends LazyDataModel<AtaGerencialBean> {
AtaGerencialBusiness ataBusiness = new AtaGerencialBusiness();
Map<String, Object> customFilters = new HashMap<String, Object>();
private List<AtaGerencialBean> listaAtaGerencialBean = new ArrayList<AtaGerencialBean>();
public AtaGerencialLazyDataModel(){
this.setRowCount(ataBusiness.getAtaGerencialTotalCount(null));
}
public AtaGerencialLazyDataModel(SetorBean setor){
customFilters.put("setor", setor);
this.setRowCount(ataBusiness.getAtaGerencialTotalCount(customFilters));
}
@Override
public List<AtaGerencialBean> load(int first, int pageSize, String sortField,
SortOrder sortOrder, Map<String, Object> filters){
List<AtaGerencialBean> list = ataBusiness.fetchLazyAtaGerencial(first, pageSize, sortField, sortOrder, customFilters);
this.setRowCount(ataBusiness.getAtaGerencialTotalCount(customFilters));
setListaAtaGerencialBean(list);
setWrappedData(list);
return list;
}
@Override
public AtaGerencialBean getRowData(String rowKey){
try{
long id = Long.parseLong(rowKey);
for (AtaGerencialBean bean : listaAtaGerencialBean) {
if (bean.getIdAta() == id){
return bean;
}
}
}catch(Exception e){
System.out.println(e.getMessage());
}
return null;
}
@Override
public Object getRowKey(AtaGerencialBean p) {
return p.getIdAta();
}
public List<AtaGerencialBean> getListaAtaGerencialBean() {
return listaAtaGerencialBean;
}
public void setListaAtaGerencialBean(
List<AtaGerencialBean> listaAtaGerencialBean) {
this.listaAtaGerencialBean = listaAtaGerencialBean;
}
}
@ManagedBean
@ViewScoped
public class AtaGerencialMB extends MB<AtaGerencialBean,
AtaGerencialBusiness> {
private LazyDataModel<AtaGerencialBean> lazyModelAtaGerencial;
@SuppressWarnings("unused")
public void onCellEdit(CellEditEvent event) {
try{
DataTable controladorTabela = (DataTable) event.getComponent();
//rowindex is fine, it brings the index of the edited row in the
datatable (from 0 onwards)
Integer rowIndex = event.getRowIndex();
String rowKey = event.getRowKey();
//rowKey is always null
System.out.println("rowKey value:" + rowKey);
AtaGerencialBean entity = (AtaGerencialBean) controladorTabela.getRowData(event.getRowKey());
this.setRegistroDefinido(entity);
super.atualizar();
}catch(NullPointerException ex){
System.out.println(ex.getMessage());
}
}
}
I was able to circumvent the problem by NOT using the rowKey to retrieve the data and modifying the onCellEdit method to get the data from the Datamodel inside the Datatable.
I am not sure whether it is a good/bad practice, or if that's how you're supposed to retrieve the row when using LazyLoading.
Also, following @Kukeltje suggestion, I am now using PRIMEFACES 6.2
@ManagedBean
@ViewScoped
public class AtaGerencialMB extends MB<AtaGerencialBean, AtaGerencialBusiness> {
private LazyDataModel<AtaGerencialBean> lazyModelAtaGerencial;
@SuppressWarnings("unused")
public void onCellEdit(CellEditEvent event) {
try{
DataTable controladorTabela = (DataTable) event.getComponent();
DataModel dm = (DataModel) controladorTabela.getValue();
AtaGerencialBean entity = (AtaGerencialBean) dm.getRowData();
this.setRegistroDefinido(entity);
super.atualizar();
}catch(NullPointerException ex){
System.out.println(ex.getMessage());
}
}
}
I was able to circumvent the problem by NOT using the rowKey to retrieve the data and modifying the onCellEdit method to get the data from the Datamodel inside the Datatable.
I am not sure whether it is a good/bad practice, or if that's how you're supposed to retrieve the row when using LazyLoading.
Also, following @Kukeltje suggestion, I am now using PRIMEFACES 6.2
@SuppressWarnings("unused")
public void onCellEdit(CellEditEvent event) {
try{
DataTable controladorTabela = (DataTable) event.getComponent();
DataModel dm = (DataModel) controladorTabela.getValue();
AtaGerencialBean entity = (AtaGerencialBean) dm.getRowData();
this.setRegistroDefinido(entity);
super.atualizar();
}catch(NullPointerException ex){
System.out.println(ex.getMessage());
}
}