Add a row to rich:datatable manually for input text - jsf

Question

I want to add a row at the end of my rich:datatable that shows information
and in this row I want to put some input that enable user to add new data
I read this answer :
RICH:dataTable - add new row
but for me is a little different
I don't have any list
my xhtml is like this :
<rich:dataTable value="#{serverMB.allServer}" var="servers1" iterationStatusVar="it" id="table" rows="15"
style="direction: rtl ; text-align: right">
<rich:column>
<f:facet name="header">#</f:facet>
#{it.index+1}
</rich:column>
<f:facet name="header">
<h:outputText value="#{msgs.servers}"/>
</f:facet>
<rich:column filterValue="#{serverMB.serverNameFilter}"
filterExpression="#{fn:containsIgnoreCase(servers1.server_name,serverMB.serverNameFilter )}">
<f:facet name="header">
<h:outputText value="#{msgs.server_name}"/>
<h:inputText value="#{serverMB.serverNameFilter}">
<a4j:ajax event="blur" render="table" execute="#this"/>
</h:inputText>
</f:facet>
<h:outputText value="#{servers1.server_name}"/>
</rich:column>
.
.
.
and my managedbean is like this
public List<Server> getAllServer() {
return serverFacade.findAll();
}
I use this method to show information so there is not any list that I personally can add a row to it and so on ...
so what I must do ?

Answer 1

Your serverList should be populated and set as a class-level variable. Use an #PostConstruct method to populate the list:
#PostConstruct
public void initServerList(){
//declare serverList as a class-scoped variable in your managed bean
serverList = serverFacade.findAll();
}
Declare a method in your managed bean that will add to the serverList
public void incrementList(){
Server server = new Server(); //create a dummy Server object
serverList.add(server); // List has been incremented. Be sure to AJAX-refresh the datatable after calling this method to reflect the new row.
}
Collect information from the JSF view which you'll then use to fill the fields of the dummy object:
public void updateLatestServer(){
Server lastServer = serverList.get(serverList.size-1);
lastServer.setName(serverNameFromView);
lastServer.setIP(IPFromView);
}
The serverNameFromView and IPFromView are hypothetical variables you'll collect in your JSF Form.