java - 在对象上使用 setCellValueFactory

Question

我已经定义了表:

    @FXML
    private TableView<FaAccount> tv_loro_nostro_accounts;
    private TableColumn<FaAccount, String> tc_acc_name;
    @FXML
    private TableColumn<FaAccount, String> tc_currency;

然后设置setCellValueFactories(代码中第二行第二部分有下划线，说明有一些错误)

tc_acc_name.setCellValueFactory(cellData -> new SimpleStringProperty(cellData.getValue().getName()));
tc_currency.setCellValueFactory(cellData -> new SimpleObjectProperty<FaCurrency>(cellData.getValue().getCurrency()));

tc_currency 上的

setCellValueFactory 返回错误:

bad return type in lambda expression: SimpleObjectProperty<FaCurrency> cannot be converted to ObservableValue<String>

在我的映射中，货币定义为

public class FaAccount implements Serializable {
...
    @Column(name = "CurrencyID")
    @Convert(converter = FaCurrencyToLongConverter.class)
    private FaCurrency currency;
    public FaCurrency getCurrency() {
        return currency;
    }
...
}

其中FaCurrency是enum

public enum FaCurrency {

    UNKNOWN(null, "НЕИЗВЕСТНАЯ", "UNKNOWN"),
    USD(1L, "ДОЛЛАР США", "USD"),
    CNY(10000000001L, "КИТАЙСКИЙ ЮАНЬ", "CNY"),
    GBP(90001290L, "ФУНТ СТЕРЛИНОГОВ", "GBP");
...
}

我应该在 setCellValueFactory 中使用什么，以便编译时不会出现错误？

Answer 1

由于您想要在tc_currency列上显示的数据类型是FaCurrency，因此您需要将其定义为

private TableColumn<FaAccount, FaCurrency> tc_currency;