How to access objects from event listener in javafx - javafx

Question

I have an object Contract and it contains Summary and Observable List of another object ContractDetails inside it.
Now, I am using ContractDetails to populate in tableview from Contract object.
I have a save button, which on clicking needs to save Contract along with ContractDetails. I am able to access ContractDetails since they are in tableview.
How do I access Contract properties in eventlistener of save button.
The related code is given below
public class Contract {
private String tradeDate;
private String contractNote;
.....
.....
private String brokerId;
private ObservableList<ContractDetails> contractdetails = FXCollections.observableArrayList();
public Contract() {
}
public Contract(String tradeDate, String contractNote, ....., String brokerId,ObservableList<ContractDetails> contractdetails) {
this.tradeDate = tradeDate;
this.contractNote = contractNote;
....
....
this.contractdetails=contractdetails;
}
public String getTradeDate() {
return tradeDate;
}
public void setTradeDate(String tradeDate) {
this.tradeDate = tradeDate;
}
public String getContractNote() {
return contractNote;
}
public void setContractNote(String contractNote) {
this.contractNote = contractNote;
}
....
....
public ObservableList<ContractDetails> getContractdetails() {
return contractdetails;
}
public void setContractdetails(ObservableList<ContractDetails> contractdetails) {
this.contractdetails = contractdetails;
}
}
public class ContractDetails {
private String orderNo;
private String contractType;
private String symbol;
private String buysell;
private Integer quantity;
private Double buysellprice;
private Double netcontractValue;
public ContractDetails() {
}
public ContractDetails(String orderNo, String contractType, String symbol, String buysell, Integer quantity, Double buysellprice, Double netcontractValue) {
this.orderNo = orderNo;
this.symbol = symbol;
this.buysell = buysell;
this.quantity = quantity;
this.buysellprice = buysellprice;
this.netcontractValue = netcontractValue;
}
public String getOrderNo() {
return orderNo;
}
public void setOrderNo(String orderNo) {
this.orderNo = orderNo;
}
....
....
public Double getNetcontractValue() {
return netcontractValue;
}
public void setNetcontractValue(Double netcontractValue) {
this.netcontractValue = netcontractValue;
}
}
In the controller
==================
public class ContractViewController implements Initializable {
#FXML
private TableView<ContractDetails> tblcontractfx;
#FXML
private TableColumn<ContractDetails, String> contractTypefx;
#FXML
private TableColumn<ContractDetails, String> symbolfx;
....
....
#FXML
private Button savefx;
#FXML
private TextField txtclientcodefx;
#FXML
private TextField txttradedtfx;
private void fetchContracts(TableView tableView, Contract contract)
{ txttradedtfx.setText(contract.getTradeDate());
txtclientcodefx.setText(contract.getClientCode());
symbolfx.setCellValueFactory(new PropertyValueFactory<ContractDetails, String>("symbol"));
contractTypefx.setCellValueFactory(new PropertyValueFactory<ContractDetails, String>("contractType"));
tableView.setItems((ObservableList) contract.getContractdetails());
#FXML
private void saveClicked(ActionEvent event) { DBConnection DBcon = new DBConnection();
//Now I am getting the contract details from tableview tblcontractfx
ObservableList<ContractDetails> contractdetails = tblcontractfx.getItems();
//How do I get the summary values from contract. I am able to get those which are in text fields like txttradedtfx and txtclientcodefx.However contractNote which I am not using, I still need to retrieve it to populate into database.
String clientCode=txtclientcodefx.getText();
Thanks

Answer 1

Just store the contract in a local variable.
Contract contract;
private void fetchContracts(TableView tableView, Contract contract)
{
this.contract = contract;
...
}
private void saveClicked(ActionEvent event) {
// here you have full access to the contract variable
String contractNote = contract.getContractNote();
}
As an alternative, if you insist on combining it all in a single table, you could put the Contract into the table via setUserData and retrieve it via getUserData.
By the way, I still don't get your code. Why is there a tableView parameter when you have full access to TableView<ContractDetails> tblcontractfx