Uses of Class
com.vaadin.flow.component.UI

Packages that use UI

Package	Description
com.vaadin.flow.component
com.vaadin.flow.component.charts
com.vaadin.flow.component.internal
com.vaadin.flow.component.page
com.vaadin.flow.component.webcomponent
com.vaadin.flow.di
com.vaadin.flow.i18n
com.vaadin.flow.internal
com.vaadin.flow.router
com.vaadin.flow.server
com.vaadin.flow.server.communication
com.vaadin.flow.server.communication.rpc

Uses of UI in com.vaadin.flow.component

Methods in com.vaadin.flow.component that return UI

Modifier and Type	Method and Description
static UI	UI.getCurrent() Gets the currently used UI.

Methods in com.vaadin.flow.component that return types with arguments of type UI

Modifier and Type	Method and Description
Optional<UI>	UI.getUI()
Optional<UI>	Component.getUI() Gets the UI this component is attached to.

Methods in com.vaadin.flow.component with parameters of type UI

Modifier and Type	Method and Description
static void	UI.setCurrent(UI ui) Sets the thread local for the current UI.

Constructors in com.vaadin.flow.component with parameters of type UI

Constructor and Description
PollEvent(UI ui, boolean fromClient) Creates a new event using the given source and indicator whether the event originated from the client side or the server side.

Uses of UI in com.vaadin.flow.component.charts

Methods in com.vaadin.flow.component.charts with parameters of type UI

Modifier and Type	Method and Description
static ChartOptions	ChartOptions.get(UI ui) Returns a ChartOptions instance for the given UI.

Uses of UI in com.vaadin.flow.component.internal

Subclasses of UI in com.vaadin.flow.component.internal

Modifier and Type	Class and Description
class	JavaScriptBootstrapUI Custom UI for JavaScriptBootstrapHandler.

Methods in com.vaadin.flow.component.internal that return UI

Modifier and Type	Method and Description
UI	HeartbeatEvent.getSource()
UI	UIInternals.getUI() Gets the UI that this instance belongs to.
UI	AbstractAttachDetachEvent.getUI() Gets the UI the component is attached to.

Methods in com.vaadin.flow.component.internal with parameters of type UI

Modifier and Type	Method and Description
void	UIInternals.moveElementsFrom(UI otherUI) Move all the children of the other UI to this current UI.
default void	UIInternalUpdater.moveToNewUI(UI oldUI, UI newUI) Move all the children from the old UI to the new UI.
default void	UIInternalUpdater.updateRoot(UI ui, HasElement oldRoot, HasElement newRoot) Update root element of the given UI.

Constructors in com.vaadin.flow.component.internal with parameters of type UI

Constructor and Description
HeartbeatEvent(UI ui, long heartbeatTime) Constructs a heartbeat Event.
UIInternals(UI ui) Creates a new instance for the given UI.
UIInternals(UI ui, UIInternalUpdater internalsHandler) Creates a new instance for the given UI.

Uses of UI in com.vaadin.flow.component.page

Methods in com.vaadin.flow.component.page that return UI

Modifier and Type	Method and Description
UI	History.getUI() Gets the UI that this instance belongs to.

Constructors in com.vaadin.flow.component.page with parameters of type UI

Constructor and Description
History(UI ui) Creates a history API endpoint for the given UI.
Page(UI ui) Creates a page instance for the given UI.

Uses of UI in com.vaadin.flow.component.webcomponent

Subclasses of UI in com.vaadin.flow.component.webcomponent

Modifier and Type	Class and Description
class	WebComponentUI Custom UI for use with WebComponents served from the server.

Constructors in com.vaadin.flow.component.webcomponent with parameters of type UI

Constructor and Description
WebComponentConnectEvent(UI source, boolean fromClient, String tag, String webComponentElementId, String userAssignedId, elemental.json.JsonObject attributeValues) Creates a new web component connection event.

Uses of UI in com.vaadin.flow.di

Methods in com.vaadin.flow.di with parameters of type UI

Modifier and Type	Method and Description
static Instantiator	Instantiator.get(UI ui) Gets the instantiator to use for the given UI.

Uses of UI in com.vaadin.flow.i18n

Methods in com.vaadin.flow.i18n that return UI

Modifier and Type	Method and Description
UI	LocaleChangeEvent.getUI() Returns the UI where the locale changed in.

Constructors in com.vaadin.flow.i18n with parameters of type UI

Constructor and Description
LocaleChangeEvent(UI ui, Locale locale) Locale change event constructor.

Uses of UI in com.vaadin.flow.internal

Methods in com.vaadin.flow.internal that return UI

Modifier and Type	Method and Description
UI	StateTree.getUI() Gets the UI that this tree belongs to.
UI	ExecutionContext.getUI() Gets the UI associated with the execution.

Methods in com.vaadin.flow.internal with parameters of type UI

Modifier and Type	Method and Description
static Map<Class<?>,CurrentInstance>	CurrentInstance.setCurrent(UI ui) Sets current instances for the UI and all related classes.

Method parameters in com.vaadin.flow.internal with type arguments of type UI

Modifier and Type	Method and Description
void	StateNode.runWhenAttached(SerializableConsumer<UI> command) Runs the command when the node is attached to a UI.

Constructors in com.vaadin.flow.internal with parameters of type UI

Constructor and Description
ExecutionContext(UI ui, boolean clientSideInitialized) Creates a new, immutable context.

Uses of UI in com.vaadin.flow.router

Methods in com.vaadin.flow.router that return UI

Modifier and Type	Method and Description
UI	NavigationEvent.getUI() Gets the UI in which the navigation occurs.
UI	LocationChangeEvent.getUI() Gets the UI in which the view is shown.
UI	BeforeEvent.getUI() Gets the UI this navigation takes place inside.

Methods in com.vaadin.flow.router with parameters of type UI

Modifier and Type	Method and Description
static List<AfterNavigationObserver>	EventUtil.collectAfterNavigationObservers(UI ui) Collect all Components implementing AfterNavigationObserver that are found in the given UI.
static List<BeforeLeaveObserver>	EventUtil.collectBeforeLeaveObservers(UI ui) Collect all Components implementing BeforeLeaveObserver connected to the given UI.
static void	EventUtil.informLocaleChangeObservers(UI ui) Inform components connected to the given ui that implement LocaleChangeObserver about locale change.
static void	EventUtil.informLocaleChangeObservers(UI ui, List<HasElement> components) Inform components implementing LocaleChangeObserver about locale change.
void	Router.initializeUI(UI ui, Location location) Enables navigation for a new UI instance.
void	Router.initializeUI(UI ui, VaadinRequest initRequest) Deprecated. use Router.initializeUI(UI, Location) instead
int	Router.navigate(UI ui, Location location, NavigationTrigger trigger) Navigates the given UI to the given location.
int	Router.navigate(UI ui, Location location, NavigationTrigger trigger, elemental.json.JsonValue state) Navigates the given UI to the given location.

Constructors in com.vaadin.flow.router with parameters of type UI

Constructor and Description
BeforeEnterEvent(Router router, NavigationTrigger trigger, Location location, Class<?> navigationTarget, RouteParameters parameters, UI ui, List<Class<? extends RouterLayout>> layouts) Constructs a new BeforeEnterEvent.
BeforeEnterEvent(Router router, NavigationTrigger trigger, Location location, Class<?> navigationTarget, UI ui, List<Class<? extends RouterLayout>> layouts) Constructs a new BeforeEnterEvent.
BeforeEvent(Router router, NavigationTrigger trigger, Location location, Class<?> navigationTarget, RouteParameters parameters, UI ui, List<Class<? extends RouterLayout>> layouts) Constructs a new BeforeEvent.
BeforeEvent(Router router, NavigationTrigger trigger, Location location, Class<?> navigationTarget, UI ui, List<Class<? extends RouterLayout>> layouts) Constructs a new BeforeEvent.
BeforeLeaveEvent(Router router, NavigationTrigger trigger, Location location, Class<?> navigationTarget, RouteParameters parameters, UI ui, List<Class<? extends RouterLayout>> layouts) Constructs a new BeforeLeaveEvent.
BeforeLeaveEvent(Router router, NavigationTrigger trigger, Location location, Class<?> navigationTarget, UI ui, List<Class<? extends RouterLayout>> layouts) Constructs a new BeforeLeaveEvent.
ErrorNavigationEvent(Router router, Location location, UI ui, NavigationTrigger trigger, ErrorParameter<?> errorParameter) Creates a new navigation event.
ErrorNavigationEvent(Router router, Location location, UI ui, NavigationTrigger trigger, ErrorParameter<?> errorParameter, elemental.json.JsonValue state) Creates a new navigation event.
LocationChangeEvent(Router router, UI ui, NavigationTrigger trigger, Location location, List<HasElement> routeTargetChain) Creates a new location change event.
NavigationEvent(Router router, Location location, UI ui, NavigationTrigger trigger) Creates a new navigation event.
NavigationEvent(Router router, Location location, UI ui, NavigationTrigger trigger, elemental.json.JsonValue state, boolean forwardTo) Creates a new navigation event.

Uses of UI in com.vaadin.flow.server

Methods in com.vaadin.flow.server that return UI

Modifier and Type	Method and Description
UI	VaadinService.findUI(VaadinRequest request) Finds the UI that belongs to the provided request.
UI	InitialPageSettings.getUi() Deprecated. Get the target UI instance.
UI	UIInitEvent.getUI() Get the initialized UI for this initialization event.
UI	BootstrapPageResponse.getUI() Deprecated. Gets the UI that will be displayed on the generated bootstrap page.
UI	BootstrapHandler.BootstrapContext.getUI() Gets the UI.
UI	VaadinSession.getUIById(int uiId) Returns a UI with the given id.

Methods in com.vaadin.flow.server that return types with arguments of type UI

Modifier and Type	Method and Description
Optional<UI>	AppShellSettings.getUi() Get the target UI instance.
protected static Class<? extends UI>	BootstrapHandler.getUIClass(VaadinRequest request) Returns the UI class mapped for servlet that handles the given request.
Collection<UI>	VaadinSession.getUIs() Gets all the UIs of this session.

Methods in com.vaadin.flow.server with parameters of type UI

Modifier and Type	Method and Description
void	VaadinSession.addUI(UI ui) Adds an initialized UI to this session.
protected BootstrapHandler.BootstrapContext	BootstrapHandler.createBootstrapContext(VaadinRequest request, VaadinResponse response, UI ui, Function<VaadinRequest,String> contextPathCallback) Creates a new instance of BootstrapHandler.BootstrapContext for given request, response and ui.
void	VaadinService.fireUIInitListeners(UI ui) Fire UI initialization event to all registered UIInitListeners.
protected static elemental.json.JsonObject	BootstrapHandler.getInitialUidl(UI ui) Generates the initial UIDL message which is included in the initial bootstrap page.
protected void	BootstrapHandler.initializeUIWithRouter(BootstrapHandler.BootstrapContext context, UI ui)
static boolean	VaadinService.isCsrfTokenValid(UI ui, String requestToken) Verifies that the given CSRF token (synchronizer token pattern) is valid for the given UI.
boolean	VaadinService.isUIActive(UI ui) Returns whether the given UI is active (the client-side actively communicates with the server) or whether it can be removed from the session and eventually collected.
void	VaadinSession.removeUI(UI ui) Called by the framework to remove an UI instance from the session because it has been closed.

Method parameters in com.vaadin.flow.server with type arguments of type UI

Modifier and Type	Method and Description
protected BootstrapHandler.BootstrapContext	BootstrapHandler.createAndInitUI(Class<? extends UI> uiClass, VaadinRequest request, VaadinResponse response, VaadinSession session)

Constructors in com.vaadin.flow.server with parameters of type UI

Constructor and Description
BootstrapContext(VaadinRequest request, VaadinResponse response, VaadinSession session, UI ui, Function<VaadinRequest,String> contextCallback) Creates a new context instance using the given parameters.
BootstrapContext(VaadinRequest request, VaadinResponse response, VaadinSession session, UI ui, Function<VaadinRequest,String> contextCallback, Function<VaadinRequest,Location> routeCallback) Creates a new context instance using the given parameters.
BootstrapPageResponse(VaadinRequest request, VaadinSession session, VaadinResponse response, org.jsoup.nodes.Document document, UI ui, VaadinUriResolver uriResolver) Deprecated. Create a new bootstrap page response.
BootstrapUriResolver(UI ui) Creates a new bootstrap resolver based on the given ui.
InitialPageSettings(VaadinRequest request, UI ui, AfterNavigationEvent afterNavigationEvent, WebBrowser browser) Deprecated. Create new initial page settings object.
UIInitEvent(UI ui, VaadinService service) Constructs a prototypical Event.

Uses of UI in com.vaadin.flow.server.communication

Methods in com.vaadin.flow.server.communication that return UI

Modifier and Type	Method and Description
protected UI	AtmospherePushConnection.getUI()

Methods in com.vaadin.flow.server.communication that return types with arguments of type UI

Modifier and Type	Method and Description
Optional<UI>	IndexHtmlResponse.getUI() Gets the UI that will be displayed on the generated HTML page.

Methods in com.vaadin.flow.server.communication with parameters of type UI

Modifier and Type	Method and Description
protected BootstrapHandler.BootstrapContext	WebComponentBootstrapHandler.createBootstrapContext(VaadinRequest request, VaadinResponse response, UI ui, Function<VaadinRequest,String> callback)
protected BootstrapHandler.BootstrapContext	JavaScriptBootstrapHandler.createBootstrapContext(VaadinRequest request, VaadinResponse response, UI ui, Function<VaadinRequest,String> callback)
elemental.json.JsonObject	MetadataWriter.createMetadata(UI ui, boolean repaintAll, boolean async, SystemMessages messages) Creates a JSON object containing metadata related to the given UI.
elemental.json.JsonObject	UidlWriter.createUidl(UI ui, boolean async) Creates a JSON object containing all pending changes to the given UI.
elemental.json.JsonObject	UidlWriter.createUidl(UI ui, boolean async, boolean resync) Creates a JSON object containing all pending changes to the given UI.
void	ServerRpcHandler.handleRpc(UI ui, Reader reader, VaadinRequest request) Reads JSON containing zero or more serialized RPC calls (including legacy variable changes) and executes the calls.
protected void	JavaScriptBootstrapHandler.initializeUIWithRouter(BootstrapHandler.BootstrapContext context, UI ui)
protected void	IndexHtmlRequestHandler.initializeUIWithRouter(BootstrapHandler.BootstrapContext context, UI ui)

Method parameters in com.vaadin.flow.server.communication with type arguments of type UI

Modifier and Type	Method and Description
protected BootstrapHandler.BootstrapContext	WebComponentBootstrapHandler.createAndInitUI(Class<? extends UI> uiClass, VaadinRequest request, VaadinResponse response, VaadinSession session)
protected BootstrapHandler.BootstrapContext	JavaScriptBootstrapHandler.createAndInitUI(Class<? extends UI> uiClass, VaadinRequest request, VaadinResponse response, VaadinSession session)

Constructors in com.vaadin.flow.server.communication with parameters of type UI

Constructor and Description
AtmospherePushConnection(UI ui) Creates an instance connected to the given UI.
IndexHtmlResponse(VaadinRequest vaadinRequest, VaadinResponse vaadinResponse, org.jsoup.nodes.Document document, UI ui) Create a response object for client side bootstrapping with UI.
JavaScriptBootstrapContext(VaadinRequest request, VaadinResponse response, UI ui, Function<VaadinRequest,String> callback) Creates a new context instance using the given parameters.

Uses of UI in com.vaadin.flow.server.communication.rpc

Methods in com.vaadin.flow.server.communication.rpc with parameters of type UI

Modifier and Type	Method and Description
Optional<Runnable>	RpcInvocationHandler.handle(UI ui, elemental.json.JsonObject invocationJson) Handles RPC data invocationJson using ui as a context.
Optional<Runnable>	NavigationRpcHandler.handle(UI ui, elemental.json.JsonObject invocationJson)
Optional<Runnable>	AbstractRpcInvocationHandler.handle(UI ui, elemental.json.JsonObject invocationJson)