Delete row form Primefaces LazyDataModel - jsf

Question

I have a table with a date column that always null. The data is a LazyDataModel child. Also i have row editing.
<p:dataTable id="dataTable" var="Var" value="#{tableBean.model}"
lazy="true"...........
<p:ajax event="rowEdit" listener="#{tableBean.onRowEdit}"
update=":dataTableForm:messages"/>
<p:column sortBy="VarName">
<f:facet name="header">
<h:outputText value="#{msg['Var.table.header.assignee']}"/>
</f:facet>
<p:cellEditor>
<f:facet name="output">
<h:outputText value="#{Var.Name}"/>
</f:facet>
<f:facet name="input">
<h:inputText id="assigneeNameInput" styleClass="row-input" value="#{Var.Name}"/>
<p:message for="assigneeNameInput"/>
</f:facet>
</p:cellEditor>
</p:column>
<f:facet name="header">
<h:outputText value="#{msg['var.table.header.action']}"/>
</f:facet>
<p:rowEditor/>
</p:column>
I need to delete edited row if date column was filled.
I try this
public void onRowEdit(RowEditEvent event) {
Var updatedVar = (Var) event.getObject();
if (updatedVar.getReturnDate() != null) {
updatedVar = null;
}
}
And this
public void onRowEdit(RowEditEvent event) {
Var updatedVar = (Var) event.getObject();
if (updatedVar.getReturnDate() != null) {
((List<T>) getWrappedData()).remove(oldEntry);
}
}
Both attempts did not work, only if update table twice via remoteCommand . Suggest the decision. Thanks!
Edit: Data removed from lazydatamodel, but on page i still had updated row.
Edit : JSF application lifecycle consist of six phases.
Phase 4:Update model values :
After the JSF checks that the data is valid, it walks over the component tree and set the corresponding server-side object properties to the components' local values. The JSF will update the bean properties corresponding to input component's value attribute.
Phase 5: Invoke application :
During this phase, the JSF handles any application-level events, such as submitting a form / linking to another page.
So, invocation onRowEdit() method occur after dataTable's update.