Accessing Subclass properties in a JavaFX TableView ObservableArrayList - tableview

Question

I am trying to access getter properties in a subclass with a TableView in JavaFX. I have the following class:
public class PersonType implements Serializable {
private static final long serialVersionUID = 1L;
Person person;
short count;
public PersonType() {
}
public PersonType(Person person, short count) {
super();
this.person = person;
this.count = count;
}
public Person getPerson() {
return person;
}
public void setPerson(Person person) {
this.person = person;
}
public short getCount() {
return count;
}
public void setCount(short count) {
this.count = count;
}
Person is like this:
public class Person implements Serializable {
private static final long serialVersionUID = 1L;
String firstName;
String lastName;
public Person() {
}
public String getFirstName() {
return firstName;
}
public void setFirstName(String firstName) {
this.firstName = firstName;
}
public String getLastName() {
return lastName;
}
public void setLastName(String lastName) {
this.lastName = lastName;
}
}
Okay - lastly we have the following:
#FXML
private TableColumn tcFirstName;
#FXML
private TableColumn tcLastName;
#FXML
private TableView tblPersonTypes;
ArrayList<PersonType> pType = new ArrayList<PersonType>();
//Can assume that pType here has say 5 entries, the point of this
//is I'm trying to get to the firstName, lastName properties of the
//PersonType in the TableView below like the following:
tcFirstName.setCellValueFactory(new PropertyValueFactory<String,String>("firstName"));
tcLastName.setCellValueFactory(new PropertyValueFactory<String,String>("lastName"));
//Populate Table with Card Records
ObservableList<PersonType> data = FXCollections.observableArrayList(pType);
tblPersonTypes.setItems(data);
And I'm unsure how with a list of PersonTypes I can tell the table columns that I want the firstName and lastName properties of the Person object contained within. I know I could create a new object, and have the "count" from PersonTypes, then the other properties of "firstName", "lastName" etc without having an object property of Person. Any help would be greatly appreciated.
-- EDIT --
Another way I thought to do this was using CellFactories - where I would pass in to the CellValueFactories the Person object, then set the CellFactory to return a String value (firstName for the first name column, etc). And it would look like this:
tcFirstName.setCellValueFactory(new PropertyValueFactory<Person,String>("person"));
tcFirstName.setCellFactory(new Callback<TableColumn<Person,String>,TableCell<Person,String>>(){
#Override
public TableCell<Person,String> call(TableColumn<Person,String> param) {
TableCell<Person,String> cell = new TableCell<Person,String>(){
#Override
public void updateItem(String item, boolean empty) {
if(item!=null){
setGraphic(new Label(item.getFirstName()));
}
}
};
return cell;
}
});

Answer 1

Try this:
tcFirstName.setCellValueFactory(new Callback<CellDataFeatures<PersonType, String>, ObservableValue<String>>() {
public ObservableValue<String> call(CellDataFeatures<PersonType, String> p) {
// p.getValue() returns the PersonType instance for a particular TableView row
if (p.getValue() != null && p.getValue().getPerson() != null) {
return new SimpleStringProperty(p.getValue().getPerson().getFirstName());
} else {
return new SimpleStringProperty("<No TC firstname>");
}
}
});
}