Java 类javafx.beans.value.WritableStringValue 实例源码

public CommonsChoiceBoxTableCell(ObservableList<CodeDVO> codes, StringConverter<CodeDVO> stringConverter) {
    this.codes = codes;
    this.stringConverter = stringConverter;
    choiceBox = new ChoiceBox<>(codes);
    choiceBox.setConverter(stringConverter);
    choiceBox.setOnAction(event -> {

        CodeDVO value = choiceBox.getValue();
        if (value == null)
            return;

        ObservableValue<String> cellObservableValue = getTableColumn().getCellObservableValue(getIndex());
        WritableStringValue writableStringValue = (WritableStringValue) cellObservableValue;
        if (cellObservableValue instanceof WritableStringValue) {
            writableStringValue.set(value.getCode());
        }
        event.consume();
    });

}

@Test
public void testJavaFXStringUnidirectional() {
    Property<String> stringDolphinProperty = new MockedProperty<>();
    StringProperty stringJavaFXProperty = new SimpleStringProperty();
    WritableStringValue writableStringValue = new SimpleStringProperty();

    stringDolphinProperty.set("Hello");
    assertNotEquals(stringJavaFXProperty.get(), "Hello");

    Binding binding = FXBinder.bind(stringJavaFXProperty).to(stringDolphinProperty);
    assertEquals(stringJavaFXProperty.get(), "Hello");
    stringDolphinProperty.set("Hello JavaFX");
    assertEquals(stringJavaFXProperty.get(), "Hello JavaFX");
    stringDolphinProperty.set(null);
    assertEquals(stringJavaFXProperty.get(), null);
    binding.unbind();
    stringDolphinProperty.set("Hello JavaFX");
    assertEquals(stringJavaFXProperty.get(), null);


    binding = FXBinder.bind(writableStringValue).to(stringDolphinProperty);
    assertEquals(writableStringValue.get(), "Hello JavaFX");
    stringDolphinProperty.set("Dolphin Platform");
    assertEquals(writableStringValue.get(), "Dolphin Platform");
    stringDolphinProperty.set(null);
    assertEquals(writableStringValue.get(), null);
    binding.unbind();
    stringDolphinProperty.set("Dolphin Platform");
    assertEquals(writableStringValue.get(), null);
}