Javafx dynamic Table - dynamic

Question

I want create dynamic table with TableView class.
I send to contractor the number of columns (int), columns name (String[]) and rows (Student), but I can't deal with that.
How I need to define the TableColumn for each one of columns?
public class DynamicTable extends TableView<Student>{
private ObservableList<Student> data;
private int columnCount;
private String[] columnName;
private TableView<Student> tableView;
DynamicTable(){
}
DynamicTable(int columnCount, Student[] rows, String[] columnName){
this.columnName=columnName;
this.columnCount=columnCount;
data = FXCollections.observableArrayList();
setData(rows);
}
public void buildTable(){
for(int i=0 ; i<columnCount; i++){
final int j=i;
TableColumn<Student,String> col = new TableColumn<Student,String>(columnName[i]);
//col.setCellValueFactory(new Callback<TableColumn.CellDataFeatures<Student,String>, ObservableValue<String>>() {
//#Override
//public ObservableValue<String> call(
// CellDataFeatures<Student, String> param) {
// return new SimpleStringProperty(param.getValue().getAddress());
// }
//});
tableView.getColumns().addAll(col);
tableView.setItems(data);
}
}
public void setData(Student[] rows){
data.setAll(rows);
}
public String[] getColumnName(){
return this.columnName;
}
}
I be glad for receiving your answer.
Edit: Student class:
public class Student implements Externalizable
{
private final SimpleIntegerProperty ID;
private final SimpleStringProperty firstName;
private final SimpleStringProperty lastName;
private final SimpleStringProperty address;
private final SimpleObjectProperty<Date> birthDate;
private final SimpleStringProperty department;
private final SimpleIntegerProperty pointsAmount;
private final SimpleObjectProperty<Date> startStudyingDate;
private final SimpleIntegerProperty failedAmount;
private final SimpleDoubleProperty average;
private final SimpleIntegerProperty lavelByGrade;
private final SimpleStringProperty pic;
public Student(){
this.ID = new SimpleIntegerProperty();
this.firstName= new SimpleStringProperty();
this.lastName= new SimpleStringProperty();
this.address= new SimpleStringProperty();
this.birthDate= new SimpleObjectProperty<Date>();
this.department= new SimpleStringProperty();
this.pointsAmount= new SimpleIntegerProperty();
this.startStudyingDate= new SimpleObjectProperty<Date>();
this.failedAmount= new SimpleIntegerProperty();
this.average= new SimpleDoubleProperty();
this.lavelByGrade= new SimpleIntegerProperty();
this.pic = new SimpleStringProperty();
}
public Student(int ID, String firstName, String lastName, String address,
Date birthDate, String department,
int pointsAmount, Date startStudyingDate, int failedAmount,
double average, int lavelByGrade, String pic){
this.ID= new SimpleIntegerProperty(ID);
this.firstName= new SimpleStringProperty(firstName);
this.lastName= new SimpleStringProperty(lastName);
this.address= new SimpleStringProperty(address);
this.birthDate= new SimpleObjectProperty<Date>(birthDate);
this.department= new SimpleStringProperty(department);
this.pointsAmount= new SimpleIntegerProperty(pointsAmount);
this.startStudyingDate= new SimpleObjectProperty<Date>(startStudyingDate);
this.failedAmount= new SimpleIntegerProperty(failedAmount);
this.average= new SimpleDoubleProperty(average);
this.lavelByGrade= new SimpleIntegerProperty(lavelByGrade);
this.pic = new SimpleStringProperty(pic);
}
public int getID() {
return ID.get();
}
public void setID(int ID) {
this.ID.set(ID);
}
public String getFirstName() {
return firstName.get();
}
public void setFirstName(String firstName) {
this.firstName.set(firstName);
}
public String getLastName() {
return lastName.get();
}
public void setLastName(String lastName) {
this.lastName.set(lastName);
}
public String getAddress() {
return address.get();
}
public void setAddress(String address) {
this.address.set(address);
}
public Date getBirthDate() {
return birthDate.get();
}
public void setBirthDate(Date birthDate) {
this.birthDate.set(birthDate);
}
public String getDepartment() {
return department.get();
}
public void setDepartment(String department) {
this.department.set(department);
}
public int getPointsAmount() {
return pointsAmount.get();
}
public void setPointsAmount(int pointsAmount) {
this.pointsAmount.set(pointsAmount);
}
public Date getStartStudyingDate() {
return startStudyingDate.get();
}
public void setStartStudyingDate(Date startStudyingDate) {
this.startStudyingDate.set(startStudyingDate);
}
public int getFailedAmount() {
return failedAmount.get();
}
public void setFailedAmount(int failedAmount) {
this.failedAmount.set(failedAmount);
}
public double getAverage() {
return average.get();
}
public void setAverage(Double average) {
this.average.set(average);
}
public int getLavelByGrade() {
return lavelByGrade.get();
}
public void setLavelByGrade(int lavelByGrade) {
this.lavelByGrade.set(lavelByGrade);
}
public String getPic() {
return pic.get();
}
public void setPic(String pic) {
this.pic.set(pic);
}
#Override
public void readExternal(ObjectInput in) throws IOException,
ClassNotFoundException {
setID(in.readInt());
setFirstName((String)in.readObject());
setLastName((String)in.readObject());
setAddress((String)in.readObject());
setBirthDate((Date)in.readObject());
setDepartment((String)in.readObject());
setPointsAmount(in.readInt());
setStartStudyingDate((Date)in.readObject());
setFailedAmount(in.readInt());
setAverage(in.readDouble());
setLavelByGrade(in.readInt());
setPic((String)in.readObject());
}
#Override
public void writeExternal(ObjectOutput out) throws IOException {
out.writeInt(getID());
out.writeObject(getFirstName());
out.writeObject(getLastName());
out.writeObject(getAddress());
out.writeObject(getBirthDate());
out.writeObject(getDepartment());
out.writeInt(getPointsAmount());
out.writeObject(getStartStudyingDate());
out.writeInt(getFailedAmount());
out.writeDouble(getAverage());
out.writeInt(getLavelByGrade());
out.writeObject(getPic());
}
}

Answer 1

First, you need to add property accessor methods to your Student class:
public class Student {
private final SimpleStringProperty firstName ;
// etc ...
public String getFirstName() {
return firstName.get();
}
public void setFirstName(String firstName) {
this.firstName.set(firstName);
}
// Add methods like this:
public StringProperty firstNameProperty() {
return firstName ;
}
// ... etc
}
Then your cell value factory will look something like this:
TableColumn<Student,String> col = new TableColumn<Student,String>(columnName[i]);
col.setCellValueFactory(cellData -> {
Student student = cellData.getValue();
return student.xxxProperty();
});
Where you replace xxxProperty() with the actual property whose value you want to display in that column.