I want to change the title "Confirm" of a ConfirmDialog to something in my language. I looked at this, but the code does not make sense to me since the show method in my vaadin addon is a static method and it appears to be impossible to show a dialog returned by the factory.
I used this code to wrap the dialog:
package com.xxx.dialog;
import org.vaadin.dialogs.ConfirmDialog;
import com.xxx.message.MessageByLocaleService;
import com.vaadin.ui.Label;
import com.vaadin.ui.UI;
public class DeleteDialog {
private ConfirmDialog cd;
public DeleteDialog(MessageByLocaleService messageByLocaleService) {
cd = ConfirmDialog.getFactory()
.create(messageByLocaleService.getMessage("caption.confirm"),
"", "OK", "Cancel", "");
}
public abstract static class MyListener {
public abstract void receive();
}
public void show(UI ui, MessageByLocaleService messageByLocaleService, MyListener yes, MyListener cancel) {
//this.setCaption(messageByLocaleService.getMessage("caption.confirm"));
//this.setMessageLabel(new Label(messageByLocaleService.getMessage("caption.confirm")));
cd.show(ui, messageByLocaleService.getMessage("confirm.delete"),
new ConfirmDialog.Listener() {
private static final long serialVersionUID = 1L;
public void onClose(ConfirmDialog dialog) {
if (dialog.isConfirmed()) {
// Confirmed to continue
yes.receive();
} else {
// User did not confirm
cancel.receive();
}
}
});
}
}
I had this class DeleteDialog as extends ConfirmDialog for some time, that is why some of the attempts I made that are commented out don't make sense.
I managed to achieve my goal by setting a new default factory.
package com.xxx.dialog;
import org.vaadin.dialogs.ConfirmDialog;
import com.xxx.message.MessageByLocaleService;
import com.vaadin.ui.UI;
public class DeleteDialog {
ConfirmDialog.Factory oldFactory;
ConfirmDialog.Factory factory;
public DeleteDialog(MessageByLocaleService messageByLocaleService) {
oldFactory = ConfirmDialog.getFactory();
factory = new ConfirmDialog.Factory() {
private static final long serialVersionUID = 1L;
#Override
public ConfirmDialog create(String arg0, String arg1, String arg2, String arg3, String arg4) {
ConfirmDialog cd = oldFactory.create(messageByLocaleService.getMessage("caption.confirm"),
"", messageByLocaleService.getMessage("message.ok"),
messageByLocaleService.getMessage("message.cancel"), null);
cd.setMessage(messageByLocaleService.getMessage("confirm.delete"));
return cd;
}
};
}
public abstract static class MyListener {
public abstract void receive();
}
public void show(UI ui, MessageByLocaleService messageByLocaleService, MyListener yes, MyListener cancel) {
ConfirmDialog.setFactory(factory);
ConfirmDialog.show(ui, messageByLocaleService.getMessage("confirm.delete"),
new ConfirmDialog.Listener() {
private static final long serialVersionUID = 1L;
public void onClose(ConfirmDialog dialog) {
if (dialog.isConfirmed()) {
// Confirmed to continue
yes.receive();
} else {
// User did not confirm
cancel.receive();
}
}
});
}
}
Related
I would like to validate user is signed in or not to achieve it i found something called VaadinServiceInitListener in vaadin 13.0.2 This class is used to listen to BeforeEnter event of all UIs in order to check whether a user is signed in or not before allowing entering any page.
I have created an vaadin 13.0.2 project with app-layout-addon by appreciated implemented login functionality and VaadinServiceInitListener to check whether a user is signed in or not.
public class AAACATInitListener implements VaadinServiceInitListener {
private static final long serialVersionUID = 1L;
private static InAppSessionContextImpl appContextImpl;
#Override
public void serviceInit(ServiceInitEvent event) {
System.out.println("in service init event");
event.getSource().addUIInitListener(new UIInitListener() {
private static final long serialVersionUID = 1L;
#Override
public void uiInit(UIInitEvent event) {
event.getUI().addBeforeEnterListener(new BeforeEnterListener() {
private static final long serialVersionUID = 1L;
#Override
public void beforeEnter(BeforeEnterEvent event) {
appContextImpl = (InAppSessionContextImpl)VaadinSession.getCurrent().getAttribute("context");
if (appContextImpl == null) {
WebBrowser webBrowser = UI.getCurrent().getSession().getBrowser();
String address = webBrowser.getAddress();
if(RememberAuthService.isAuthenticated(address) != null && !RememberAuthService.isAuthenticated(address).isEmpty()) {
//System.out.println("Found Remembered User....");
IBLSessionContext iblSessionContext = null;
try {
iblSessionContext = new UserBLManager().doRememberedStaffUserLogin(RememberAuthService.isAuthenticated(address), "");
if(iblSessionContext != null) {
InAppSessionContextImpl localAppContextImpl = new InAppSessionContextImpl();
localAppContextImpl.setBLSessionContext(iblSessionContext);
localAppContextImpl.setModuleGroupList(iblSessionContext.getSessionAccessControl().getPermittedModuleGroups());
appContextImpl = localAppContextImpl;
event.rerouteTo(ApplicationMainView.class);
}else {
Notification.show("Your access has been expired, Please contact your administrator", 5000, Position.BOTTOM_CENTER);
}
} catch (AuthenticationFailedException e) {
Notification.show("Authentication Failed, Please Reset Cookies And Try Again", 5000, Position.BOTTOM_CENTER);
} catch (Exception e){
e.printStackTrace();
Notification.show("Unexpected Error Occurred, Please Reset Cookies And Try Again", 5000, Position.BOTTOM_CENTER);
}
}else {
System.out.println("Session context is null, creating new context");
appContextImpl = new InAppSessionContextImpl();
VaadinSession.getCurrent().setAttribute("context", appContextImpl);
event.rerouteTo(LoginView.class);
}
} else {
System.out.println("Session context is not null");
InAppSessionContextImpl localAppContextImpl = new InAppSessionContextImpl();
localAppContextImpl.setBLSessionContext(appContextImpl.getBLSessionContext());
localAppContextImpl.setModuleGroupList(appContextImpl.getModuleGroupList());
appContextImpl = localAppContextImpl;
event.rerouteTo(ApplicationMainView.class);
}
}
});
}
});
}
public static void setBLSessionContext(IBLSessionContext iblSessionContext) {
appContextImpl.setBLSessionContext(iblSessionContext);
}
public static void setModuleGroupList(List<ModuleGroupVO> moduleGroupList) {
appContextImpl.setModuleGroupList(moduleGroupList);
}
private class InAppSessionContextImpl implements InAppSessionContext {
private static final long serialVersionUID = 1L;
private List<ModuleGroupVO> moduleGroupList;
private IBLSessionContext iblSessionContext;
private Map<String, Object> attributeMap;
public InAppSessionContextImpl() {
this.attributeMap = new HashMap<String, Object>();
}
#Override
public List<ModuleGroupVO> getModuleGroupList() {
return moduleGroupList;
}
public void setModuleGroupList(List<ModuleGroupVO> moduleGroupList) {
this.moduleGroupList = moduleGroupList;
}
#Override
public IBLSessionContext getBLSessionContext() {
return iblSessionContext;
}
public void setBLSessionContext(IBLSessionContext iblSessionContext) {
this.iblSessionContext = iblSessionContext;
}
#Override
public IBLSession getBLSession() {
if(iblSessionContext != null)
return iblSessionContext.getBLSession();
return null;
}
#Override
public boolean isPermittedAction(String actionAlias) {
if (getBLSessionContext() != null) {
if (getBLSessionContext().getSessionAccessControl() != null) {
return getBLSessionContext().getSessionAccessControl().isPermittedAction(actionAlias);
}
}
return false;
}
#Override
public void setAttribute(String key, Object attribute) {
attributeMap.put(key, attribute);
}
#Override
public Object getAttribute(String key) {
return attributeMap.get(key);
}
}
}
Expected results redirect to login page if user not signed in or else to main application page but AAACATInitListener is not listening.
If you are using Spring, simply add a #Component annotation to the class and it should work. If youre not using Spring, follow #codinghaus' answer.
To make Vaadin recognize the VaadinServiceInitListener you have to create a file called com.vaadin.flow.server.VaadinServiceInitListener and put it under src/main/resources/META-INF/services. Its content should be the full path to the class that implements the VaadinServiceInitListener interface. Did you do that?
You can also find a description on that in the tutorial.
The correct pattern to use beforeEnter(..) is not do it via VaadinServiceInitListener , instead you should implement BeforeEnterObserver interface in the view where you need use it and override beforeEnter(..) method with your implementation.
public class MainView extends VerticalLayout implements RouterLayout, BeforeEnterObserver {
...
#Override
public void beforeEnter(BeforeEnterEvent event) {
...
}
}
I have parent presenter: UsersListPresenter that contains nested presenter: UserPresenter in NestedSlot.
public class UsersListPresenter extends ApplicationPresenter<UsersListPresenter.MyView, UsersListPresenter.MyProxy> implements UsersListUiHandlers,
OpenWindowEvent.OpenModaHandler, UserAddedEvent.UserAddedHandler {
#ProxyStandard
#NameToken(ClientRouting.Url.users)
#UseGatekeeper(IsUserLoggedGatekeeper.class)
public interface MyProxy extends TabContentProxyPlace<UsersListPresenter> {}
#TabInfo(container = AppPresenter.class)
static TabData getTabLabel(IsUserLoggedGatekeeper adminGatekeeper) {
return new MenuEntryGatekeeper(ClientRouting.Label.users, 1, adminGatekeeper);
}
public interface MyView extends View, HasUiHandlers<UsersListUiHandlers> {
void setUsers(List<UserDto> users);
void addUser(UserDto user);
}
public static final NestedSlot SLOT_USER_WINDOW = new NestedSlot();
//interface Driver extends SimpleBeanEditorDriver<UserDto, UserEditor> {}
private static final UserService userService = GWT.create(UserService.class);
private AppPresenter appPresenter;
private UserTestPresenter userPresenter;
#Inject
UsersListPresenter(EventBus eventBus, MyView view, MyProxy proxy, AppPresenter appPresenter, UserTestPresenter userPresenter) {
super(eventBus, view, proxy, appPresenter, AppPresenter.SLOT_TAB_CONTENT);
this.appPresenter = appPresenter;
this.userPresenter = userPresenter;
getView().setUiHandlers(this);
}
#Override
protected void onBind() {
super.onBind();
updateList();
setInSlot(SLOT_USER_WINDOW, userPresenter);
addRegisteredHandler(OpenWindowEvent.getType(), this);
}
#Override
protected void onReveal() {
super.onReveal();
initializeApplicationUiComponents(ClientRouting.Label.users);
}
#Override
public void onOpenModal(OpenWindowEvent event) {
openModal(event.getUser());
}
#Override
public void openModal(UserDto user) {
userPresenter.openModal(user);
}
}
public class UsersListView extends ViewWithUiHandlers<UsersListUiHandlers> implements UsersListPresenter.MyView {
interface Binder extends UiBinder<Widget, UsersListView> {}
#UiField
SimplePanel windowSlot;
#Inject
UsersListView(Binder uiBinder) {
initWidget(uiBinder.createAndBindUi(this));
}
#Override
public void setInSlot(Object slot, IsWidget content) {
if (slot == UsersListPresenter.SLOT_USER_WINDOW) {
windowSlot.setWidget(content);
}
};
}
public class UserTestPresenter extends Presenter<UserTestPresenter.MyView, UserTestPresenter.MyProxy> implements UserTestUiHandlers {
public interface MyView extends View, HasUiHandlers<UserTestUiHandlers> {
void openModal(UserDto user);
}
#ProxyStandard
#NameToken("/user/{userid}")
public interface MyProxy extends ProxyPlace<UserTestPresenter> {
}
private PlaceManager placeManager;
#Inject
public UserTestPresenter(EventBus eventBus, MyView view, MyProxy proxy, PlaceManager placeManager) {
super(eventBus, view, proxy, UsersListPresenter.SLOT_USER_WINDOW);
this.placeManager = placeManager;
getView().setUiHandlers(this);
}
#Override
public void prepareFromRequest(PlaceRequest request) {
GWT.log("Prepare from request " + request.getNameToken());
}
#Override
protected void onReveal() {
super.onReveal();
};
public void openModal(UserDto user) {
getView().openModal(user);
}
#Override
public void onSave(UserDto user) {
// TODO Auto-generated method stub
MaterialToast.fireToast("onSaveClick in new presenter for " + user.toString());
}
#Override
public void onClose() {
PlaceRequest placeRequest = new PlaceRequest.Builder().nameToken("/users/{userid}").with("userid", "list").build();
placeManager.revealPlace(placeRequest);
}
public class UserTestView extends ViewWithUiHandlers<UserTestUiHandlers> implements UserTestPresenter.MyView {
interface Binder extends UiBinder<Widget, UserTestView> {}
#UiField
MaterialRow main;
#UiField
MaterialWindow window;
#UiField
MaterialLabel userName, userFullName;
#UiField
MaterialButton saveButton;
private HandlerRegistration saveButtonClickHandler;
#Inject
UserTestView(Binder uiBinder) {
initWidget(uiBinder.createAndBindUi(this));
// adding default click handler
saveButtonClickHandler = saveButton.addClickHandler(new ClickHandler() {
#Override
public void onClick(ClickEvent event) {}
});
}
#Override
public void openModal(final UserDto user) {
userName.setText(user.getEmail());
userFullName.setText(user.getId() + " " + user.getEmail());
saveButtonClickHandler.removeHandler();
saveButtonClickHandler = saveButton.addClickHandler(new ClickHandler() {
#Override
public void onClick(ClickEvent event) {
getUiHandlers().save(user);
}
});
window.openWindow();
}
}
when user from list is clicked the window with clicked users is opened. At this moment url should change from http://localhost:8080/cms/#/users/list to http://localhost:8080/cms/#/user/3
for better understanding below is screencast from that code:
and now some job done, but still not ideal:
here is my gwtp configuration:
public class ClientModule extends AbstractPresenterModule {
#Override
protected void configure() {
bind(RestyGwtConfig.class).asEagerSingleton();
install(new Builder()//
.defaultPlace(ClientRouting.HOME.url)//
.errorPlace(ClientRouting.ERROR.url)//
.unauthorizedPlace(ClientRouting.LOGIN.url)//
.tokenFormatter(RouteTokenFormatter.class).build());
install(new AppModule());
install(new GinFactoryModuleBuilder().build(AssistedInjectionFactory.class));
bind(CurrentUser.class).in(Singleton.class);
bind(IsAdminGatekeeper.class).in(Singleton.class);
bind(IsUserLoggedGatekeeper.class).in(Singleton.class);
bind(ResourceLoader.class).asEagerSingleton();
}
}
As You can see I use tokenFormatter(RouteTokenFormatter.class)
how it can be achieved with gwtp framework?
One way to achieve this is to change the URL of your UserListPresenter to support passing in the user id as an optional parameter:
#NameToken("/users/{userid}")
public interface MyProxy extends ProxyPlace<UserListPresenter> {
}
You need to override the prepareFromRequest method of your UserListPresenter and there you check if the userid is set and open your modal window if it is.
#Override
public void prepareFromRequest(PlaceRequest request) {
String userid = request.getParameter("userid", "list");
if (userid != "list") {
# open modal
}
else {
# close modal
}
}
You also need to change the logic when you click your on a user in your list:
#Override
public void onOpenModal(OpenWindowEvent event) {
PlaceRequest placeRequest = new PlaceRequest.Builder()
.nameToken("/users/{userid}")
.with("userid", event.getUser().getId())
.build();
placeManager.revealPlace(placeRequest);
}
This will change the URL and open the modal.
I want to write a Vaadin 7 application (see MyVaadinUI below), which asks the user to enter user name and password.
If they are correct, another view (see MainUI below) should appear and take the entire area (replace the login view).
I tried to implement this transition in the method MyVaadinUI.goToMainWindow, but I get the error
java.lang.RuntimeException: Component must be attached to a session when getConnectorId() is called for the first time
at com.vaadin.server.AbstractClientConnector.getConnectorId(AbstractClientConnector.java:417)
at com.vaadin.server.communication.ConnectorHierarchyWriter.write(ConnectorHierarchyWriter.java:67)
at com.vaadin.server.communication.UidlWriter.write(UidlWriter.java:143)
at com.vaadin.server.communication.UidlRequestHandler.writeUidl(UidlRequestHandler.java:149)
at com.vaadin.server.communication.UidlRequestHandler.synchronizedHandleRequest(UidlRequestHandler.java:97)
at com.vaadin.server.SynchronizedRequestHandler.handleRequest(SynchronizedRequestHandler.java:37)
at com.vaadin.server.VaadinService.handleRequest(VaadinService.java:1371)
at com.vaadin.server.VaadinServlet.service(VaadinServlet.java:238)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:848)
when I run the application and press the button.
How can I fix it?
#Theme("mytheme")
#SuppressWarnings("serial")
public class MyVaadinUI extends UI
{
private TextField userNameTextField;
private PasswordField passwordTextField;
#WebServlet(value = "/*", asyncSupported = true)
#VaadinServletConfiguration(productionMode = false, ui = MyVaadinUI.class, widgetset = "ru.mycompany.vaadin.demo.AppWidgetSet")
public static class Servlet extends VaadinServlet {
}
#Override
protected void init(VaadinRequest request) {
final VerticalLayout layout = new VerticalLayout();
layout.setMargin(true);
setContent(layout);
addUserNameTextField(layout);
addPasswordTextField(layout);
addButton(layout, request);
}
private void addPasswordTextField(Layout aLayout) {
passwordTextField = new PasswordField("Пароль:");
aLayout.addComponent(passwordTextField);
}
private void addUserNameTextField(final Layout aLayout) {
userNameTextField = new TextField("Пользователь:");
aLayout.addComponent(userNameTextField);
}
private void addButton(final Layout aParent, final VaadinRequest request) {
final Button button = new Button("Войти");
button.addClickListener(new Button.ClickListener() {
public void buttonClick(Button.ClickEvent event) {
final boolean credentialsCorrect = checkCredentials();
if (credentialsCorrect) {
goToMainWindow(request);
} else {
[...]
}
}
});
aParent.addComponent(button);
}
private void goToMainWindow(final VaadinRequest aRequest) {
final MainUI mainUI = new MainUI();
mainUI.init(aRequest);
setContent(mainUI);
}
}
#Theme("mytheme")
#SuppressWarnings("serial")
public class MainUI extends UI {
#Override
protected void init(final VaadinRequest vaadinRequest) {
final HorizontalSplitPanel splitPanel = new HorizontalSplitPanel();
setContent(splitPanel);
splitPanel.setSizeFull();
splitPanel.setSplitPosition(200, Unit.PIXELS);
final String[] tabLabels = new String[] {
"Tree item 1",
"Tree item 2"};
final Tree tree = new Tree();
for (int i=0; i < tabLabels.length; i++)
{
addTreeItem(tree, tabLabels[i]);
}
splitPanel.setFirstComponent(tree);
splitPanel.setSecondComponent(new Label("Test"));
}
private void addTreeItem(final Tree aTree, final String aLabel) {
aTree.addItem(aLabel);
}
}
On the Vaadin forum someone suggested to use the navigator, which solved my problem.
I'd rather think that MainUI should extend HorizontalSplitPanel, not UI. It is strange concept to me to insert one UI into another.
You can use #SpringUI for the main class which extends UI:
#SpringUI
#Theme("mytheme")
#Widgetset("com.MyAppWidgetset")
#PreserveOnRefresh
public class MainUI extends UI {
private static final long serialVersionUID = -8247521108438815011L;
private static Locale locale = VaadinSession.getCurrent().getLocale();
#Autowired
private ToolBoxMessageSource messageSource;
#Autowired
private SpringViewProvider springViewProvider;
public MainUI() {
}
//Initializes navigator with SpringViewProvider and add all existing
//and ui specific assigned views to navigator.
#Override
protected void init(VaadinRequest vaadinRequest) {
Navigator navigator = new Navigator(this, this);
// Adding springViewProvider for spring autowiring
navigator.addProvider(springViewProvider);
// Adding all views for navigation
navigator.addView(LoginView.NAME, LoginView.class);
navigator.addView(MainView.NAME, MainView.class);
navigator.addView(MailToolView.NAME, MailToolView.class);
navigator.addView(AdminView.NAME, AdminView.class);
navigator.addView(EditRecipientView.NAME, EditRecipientView.class);
navigator.addView(EditRecipientsView.NAME, EditRecipientsView.class);
navigator.addView(ServerView.NAME, ServerView.class);
navigator.addView(TestJobView.NAME, TestJobView.class);
navigator.addView("", new LoginView());
navigator.navigateTo(LoginView.NAME);
navigator.setErrorView(LoginView.class);
// security: if user changes view check if the user has the required rights
navigator.addViewChangeListener(new ViewChangeListener() {
private static final long serialVersionUID = 7330051193056583546L;
#Override
public boolean beforeViewChange(ViewChangeEvent event) {
Toolbox toolbox = getSession().getAttribute(Toolbox.class);
if (TbRightManagement.checkAccess(event.getNewView().getClass(), toolbox)) {
return true;
} else {
if (toolbox != null) {
TBNotification.show(messageSource.getMessage("access.denied.title", locale),
messageSource.getMessage("access.denied.no_permissions.msg", locale),
Type.ERROR_MESSAGE);
navigator.navigateTo(MainView.NAME);
return false;
} else {
TBNotification.show(messageSource.getMessage("access.denied.title", locale),
messageSource.getMessage("access.denied.not_loggedin.msg", locale),
Type.ERROR_MESSAGE);
navigator.navigateTo(LoginView.NAME);
return false;
}
}
}
#Override
public void afterViewChange(ViewChangeEvent event) {}
});
}
}
And for the other views, as an example EditRecipientsView should be a #SpringView which extends a Vaadin Designer and implements a Vaadin View.
#SpringView(name = EditRecipientsView.NAME)
#Theme("mytheme")
#TbRight(loggedIn = true, mailTool = true)
public class EditRecipientsView extends RecipientsDesign implements View {
private static final long serialVersionUID = 1L;
public static final String NAME = "editRecipients";
private static Locale locale = VaadinSession.getCurrent().getLocale();
private BeanItemContainer<Recipient> recipientContainer;
private Uploader uploader;
#Autowired
private ToolBoxMessageSource messageSource;
public EditRecipientsView() {
super();
}
//Initializes the ui components of the recipient view.
#PostConstruct
public void init() {
btn_addRecipient.addClickListener(e -> { MainUI.getCurrent().getNavigator().navigateTo(EditRecipientView.NAME);});
}
//Handling data when entering this view.
#Override
public void enter(ViewChangeEvent event) {
if (getSession().getAttribute(UIMailing.class) != null) {
List<Recipient> recipientList = getSession().getAttribute(UIMailing.class).getRecipients();
if (recipientList != null) {
recipientContainer.removeAllItems();
} else {
recipientList = new ArrayList<Recipient>();
}
recipientContainer.addAll(recipientList);
recipient_table.sort(new Object[] {"foreName", "lastName"}, new boolean[] {true, true});
}
}
}
I'm using trying to use a javafx combobox with a cell factory to render the list, I was using the setText on the override updateItem() of my CellList, but I found out when I change a value on the underlying model, that doesnẗ afects the deployed list on the combo box. So I try to make it binding both properties and It's works but when a try to clear the selection I have a Exception. This is the code:
import javafx.application.Application;
import javafx.beans.property.SimpleStringProperty;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.scene.Scene;
import javafx.scene.control.*;
import javafx.scene.layout.*;
import javafx.stage.Stage;
import javafx.util.Callback;
public class BasicComboBoxSample extends Application {
public static void main(String[] args) { launch(args); }
#Override public void start(Stage stage) {
final Employee john = new Employee("John");
final Employee jill = new Employee("Jill");
final Employee jack = new Employee("Jack");
final ComboBox<Employee> cboEmployees = new ComboBox();
cboEmployees.getItems().addAll(john, jill, jack);
cboEmployees.setValue(jill);
Button b = new Button("ChangeName");
b.setOnAction(new EventHandler<ActionEvent>() {
#Override
public void handle(ActionEvent actionEvent) {
john.setName("Maria");
}
});
Button c = new Button("Clear");
c.setOnAction(new EventHandler<ActionEvent>() {
#Override
public void handle(ActionEvent actionEvent) {
cboEmployees.getSelectionModel().clearSelection();
}
});
Button d = new Button("Select First");
d.setOnAction(new EventHandler<ActionEvent>() {
#Override
public void handle(ActionEvent actionEvent) {
cboEmployees.getSelectionModel().select(john);
}
});
Callback<ListView<Employee>, ListCell<Employee>> cellFactory = new Callback<ListView<Employee>, ListCell<Employee>>() {
#Override
public ListCell<Employee> call(ListView<Employee> listView) {
return new EmployeeListCell(); //To change body of implemented methods use File | Settings | File Templates.
}
};
cboEmployees.setButtonCell(new EmployeeListCell());
cboEmployees.setCellFactory(cellFactory);
final StackPane layout = new StackPane();
VBox v = new VBox();
v.getChildren().add(cboEmployees);
v.getChildren().add(b);
v.getChildren().add(c);
v.getChildren().add(d);
layout.getChildren().add(v);
layout.setStyle("-fx-background-color: cornsilk; -fx-padding: 15;");
stage.setScene(new Scene(layout));
stage.show();
}
class Employee {
public Employee(String name) { this.setName(name); }
private SimpleStringProperty name = new SimpleStringProperty("");
String getName() {
return name.get();
}
SimpleStringProperty nameProperty() {
return name;
}
void setName(String name) {
this.name.set(name);
}
}
public class EmployeeListCell extends ListCell<Employee> {
#Override
protected void updateItem(Employee emp, boolean b) {
super.updateItem(emp, b);
if(emp != null){
textProperty().bind(emp.nameProperty());
}
}
}
}
And the Exception was:
Exception in thread "JavaFX Application Thread" java.lang.RuntimeException: A bound value cannot be set.
at javafx.beans.property.StringPropertyBase.set(StringPropertyBase.java:157)
at javafx.beans.property.StringPropertyBase.set(StringPropertyBase.java:67)
at javafx.beans.property.StringProperty.setValue(StringProperty.java:84)
at javafx.scene.control.Labeled.setText(Labeled.java:135)
at com.sun.javafx.scene.control.skin.ComboBoxListViewSkin.updateDisplayText(ComboBoxListViewSkin.java:420)
at com.sun.javafx.scene.control.skin.ComboBoxListViewSkin.updateDisplayNode(ComboBoxListViewSkin.java:399)
at com.sun.javafx.scene.control.skin.ComboBoxListViewSkin.getDisplayNode(ComboBoxListViewSkin.java:229)
at com.sun.javafx.scene.control.skin.ComboBoxBaseSkin.updateDisplayArea(ComboBoxBaseSkin.java:125)
at com.sun.javafx.scene.control.skin.ComboBoxBaseSkin.handleControlPropertyChanged(ComboBoxBaseSkin.java:120)
at com.sun.javafx.scene.control.skin.ComboBoxListViewSkin.handleControlPropertyChanged(ComboBoxListViewSkin.java:198)
at com.sun.javafx.scene.control.skin.SkinBase$3.changed(SkinBase.java:282)
at javafx.beans.value.WeakChangeListener.changed(WeakChangeListener.java:107)
at com.sun.javafx.binding.ExpressionHelper$Generic.fireValueChangedEvent(ExpressionHelper.java:367)
at com.sun.javafx.binding.ExpressionHelper.fireValueChangedEvent(ExpressionHelper.java:100)
at javafx.beans.property.ObjectPropertyBase.fireValueChangedEvent(ObjectPropertyBase.java:123)
at javafx.beans.property.ObjectPropertyBase.markInvalid(ObjectPropertyBase.java:130)
at javafx.beans.property.ObjectPropertyBase.set(ObjectPropertyBase.java:163)
at javafx.scene.control.ComboBoxBase.setValue(ComboBoxBase.java:148)
at javafx.scene.control.ComboBox.updateValue(ComboBox.java:416)
at javafx.scene.control.ComboBox.access$300(ComboBox.java:166)
at javafx.scene.control.ComboBox$6.changed(ComboBox.java:401)
at com.sun.javafx.binding.ExpressionHelper$Generic.fireValueChangedEvent(ExpressionHelper.java:367)
at com.sun.javafx.binding.ExpressionHelper.fireValueChangedEvent(ExpressionHelper.java:100)
at javafx.beans.property.ReadOnlyObjectWrapper$ReadOnlyPropertyImpl.fireValueChangedEvent(ReadOnlyObjectWrapper.java:195)
at javafx.beans.property.ReadOnlyObjectWrapper.fireValueChangedEvent(ReadOnlyObjectWrapper.java:161)
at javafx.beans.property.ObjectPropertyBase.markInvalid(ObjectPropertyBase.java:130)
at javafx.beans.property.ObjectPropertyBase.set(ObjectPropertyBase.java:163)
at javafx.scene.control.SelectionModel.setSelectedItem(SelectionModel.java:101)
at javafx.scene.control.ComboBox$ComboBoxSelectionModel$1.invalidated(ComboBox.java:448)
at com.sun.javafx.binding.ExpressionHelper$SingleInvalidation.fireValueChangedEvent(ExpressionHelper.java:155)
at com.sun.javafx.binding.ExpressionHelper.fireValueChangedEvent(ExpressionHelper.java:100)
at javafx.beans.property.ReadOnlyIntegerWrapper$ReadOnlyPropertyImpl.fireValueChangedEvent(ReadOnlyIntegerWrapper.java:195)
at javafx.beans.property.ReadOnlyIntegerWrapper.fireValueChangedEvent(ReadOnlyIntegerWrapper.java:161)
at javafx.beans.property.IntegerPropertyBase.markInvalid(IntegerPropertyBase.java:130)
at javafx.beans.property.IntegerPropertyBase.set(IntegerPropertyBase.java:163)
at javafx.scene.control.SelectionModel.setSelectedIndex(SelectionModel.java:67)
at javafx.scene.control.SingleSelectionModel.updateSelectedIndex(SingleSelectionModel.java:208)
at javafx.scene.control.SingleSelectionModel.clearSelection(SingleSelectionModel.java:67)
at de.thomasbolz.javafx.BasicComboBoxSample$2.handle(BasicComboBoxSample.java:45)
at de.thomasbolz.javafx.BasicComboBoxSample$2.handle(BasicComboBoxSample.java:42)
at com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:69)
at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:217)
at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:170)
at com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(CompositeEventDispatcher.java:38)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:37)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:92)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:35)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:92)
at com.sun.javafx.event.EventUtil.fireEventImpl(EventUtil.java:53)
at com.sun.javafx.event.EventUtil.fireEvent(EventUtil.java:28)
at javafx.event.Event.fireEvent(Event.java:171)
at javafx.scene.Node.fireEvent(Node.java:6863)
at javafx.scene.control.Button.fire(Button.java:179)
at com.sun.javafx.scene.control.behavior.ButtonBehavior.mouseReleased(ButtonBehavior.java:193)
at com.sun.javafx.scene.control.skin.SkinBase$4.handle(SkinBase.java:336)
at com.sun.javafx.scene.control.skin.SkinBase$4.handle(SkinBase.java:329)
at com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:64)
at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:217)
at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:170)
at com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(CompositeEventDispatcher.java:38)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:37)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:92)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:35)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:92)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:35)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:92)
at com.sun.javafx.event.EventUtil.fireEventImpl(EventUtil.java:53)
at com.sun.javafx.event.EventUtil.fireEvent(EventUtil.java:33)
at javafx.event.Event.fireEvent(Event.java:171)
at javafx.scene.Scene$MouseHandler.process(Scene.java:3328)
at javafx.scene.Scene$MouseHandler.process(Scene.java:3168)
at javafx.scene.Scene$MouseHandler.access$1900(Scene.java:3123)
at javafx.scene.Scene.impl_processMouseEvent(Scene.java:1563)
at javafx.scene.Scene$ScenePeerListener.mouseEvent(Scene.java:2265)
at com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:250)
at com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:173)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.javafx.tk.quantum.GlassViewEventHandler.handleMouseEvent(GlassViewEventHandler.java:292)
at com.sun.glass.ui.View.handleMouseEvent(View.java:528)
at com.sun.glass.ui.View.notifyMouse(View.java:922)
at com.sun.glass.ui.gtk.GtkApplication._runLoop(Native Method)
at com.sun.glass.ui.gtk.GtkApplication$3$1.run(GtkApplication.java:82)
at java.lang.Thread.run(Thread.java:722)
You need to unbind the textProperty in case the emp is null
Add the condition in EmployeeListCell class
else {
textProperty().unbind();
}
I want to get the instance of the Entity from SelectOneMenu so i can assign the entity variables to some other method. But it is pointing to null.
xhtml code
<h:selectOneMenu value="#{statusReport.projectDetID}" converter="ObjectStringConv" onchange="#{statusReport.retrieveReport()}" >
<f:selectItems value="#{statusReport.listOfProjectDetail}"
var="projectDetail" itemLabel="#{projectDetail.project} #{projectDetail.startDate} - #{projectDetail.endDate}"
itemValue="#{projectDetail}" noSelectionValue="Select the Saved Project"/>
</h:selectOneMenu>
statusReport bean
public class StatusReport implements Serializable {
private ProjectDetail projectDetID;
private List<ProjectDetail> listOfProjectDetail;
public List<ProjectDetail> getListOfProjectDetail() {
listOfProjectDetail = projectDetailFacade.findAll();
return listOfProjectDetail;
}
public void setListOfProjectDetail(List<ProjectDetail> listOfProjectDetail) {
this.listOfProjectDetail = listOfProjectDetail;
}
public ProjectDetail getProjectDetID() {
return projectDetID;
}
public void setProjectDetID(ProjectDetail projectDetID) {
this.projectDetID = projectDetID;
}
public void retrieveReport(){
System.out.println(" Processing .....");
if ( projectDetID == null )
{
System.out.println("The object from Select null");
}
else
{
System.out.println("The object from Select menu" + projectDetID.toString());
}
System.out.println("Generated Data:Completed");
}}
ProjectDetail Entity Bean
package com.jira.entity;
import java.io.Serializable;
import javax.persistence.*;
import java.util.Date;
import java.util.List;
/**
* The persistent class for the PROJECT_DETAIL database table.
*
*/
#Entity
#Table(name="PROJECT_DETAIL",schema="weeklyrep")
public class ProjectDetail implements Serializable {
private static final long serialVersionUID = 1L;
#Id
#GeneratedValue(strategy=GenerationType.SEQUENCE, generator="projectdetail_seq")
#SequenceGenerator(name="projectdetail_seq",schema="weeklyrep",sequenceName="projectdetail_seq", allocationSize=1)
#Column(name="PDETAIL_ID")
private long pdetailId;
private Boolean completed;
#Temporal( TemporalType.DATE)
#Column(name="END_DATE")
private Date endDate;
private Long project;
#Temporal( TemporalType.DATE)
#Column(name="START_DATE")
private Date startDate;
//bi-directional many-to-one association to MajorEvent
#OneToMany(mappedBy="projectDetail",cascade=CascadeType.ALL)
private List<MajorEvent> majorEvents;
//bi-directional one-to-one association to ExecSummary
#OneToOne(mappedBy="projectDetailExec",cascade=CascadeType.ALL)
private ExecSummary execSummary;
public ProjectDetail() {
}
public long getPdetailId() {
return this.pdetailId;
}
public void setPdetailId(Long pdetailId) {
this.pdetailId = pdetailId;
}
public Boolean getCompleted() {
return this.completed;
}
public void setCompleted(Boolean completed) {
this.completed = completed;
}
public Date getEndDate() {
return this.endDate;
}
public void setEndDate(Date endDate) {
this.endDate = endDate;
}
public long getProject() {
return this.project;
}
public void setProject(long project) {
this.project = project;
}
public Date getStartDate() {
return this.startDate;
}
public void setStartDate(Date startDate) {
this.startDate = startDate;
}
public List<MajorEvent> getMajorEvents() {
return this.majorEvents;
}
public void setMajorEvents(List<MajorEvent> majorEvents) {
this.majorEvents = majorEvents;
}
public ExecSummary getExecSummary() {
return execSummary;
}
public void setExecSummary(ExecSummary execSummary) {
this.execSummary = execSummary;
}
}
Converter
I don't know if it needs converter, however i don't know how code it.
package com.weeklyreport.converters;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.convert.Converter;
import javax.faces.convert.FacesConverter;
import com.jira.entity.ProjectDetail;
#FacesConverter(value="ObjectStringConv")
public class ObjectStringConv implements Converter {
#Override
public Object getAsObject(FacesContext context, UIComponent component, String svalue) {
System.out.print("String version of object is:" + svalue);
return "test";
}
#Override
public String getAsString(FacesContext context, UIComponent component, Object ovalue) {
return ovalue.toString();
}
}
Please help me figure this out. Is there a way we get instance of the entity object like this?
Your converter needs to be written that way so that it can convert between ProjectDetail and String based on an unique identifier of ProjectDetail. Usually entities have an id. You need to use this as String value. Here's a kickoff example without any trivial checks like null and instanceof:
#Override
public String getAsString(FacesContext context, UIComponent component, Object value) {
// Convert ProjectDetail to its unique String representation.
ProjectDetail projectDetail = (ProjectDetail) value;
String idAsString = String.valueOf(projectDetail.getId())
return idAsString;
}
#Override
public Object getAsObject(FacesContext context, UIComponent component, String value) {
// Convert unique String representation of ProjectDetail back to ProjectDetail object.
Long id = Long.valueOf(value);
ProjectDetail projectDetail = someProjectDetailService.find(id);
return projectDetail;
}
Note that using EJBs in JSF converters (and validators) needs some hackery. See also How to inject #EJB, #PersistenceContext, #Inject, #Autowired, etc in #FacesConverter?