Notification (Vaadin Platform (vaadin-core) 12.0.0.alpha5 API)

java.lang.Object
- com.vaadin.flow.component.Component
- - com.vaadin.flow.component.notification.GeneratedVaadinNotification<Notification>
  - - com.vaadin.flow.component.notification.Notification

All Implemented Interfaces:

AttachNotifier, DetachNotifier, HasComponents, HasElement, HasEnabled, Serializable
```
@HtmlImport(value="frontend://flow-component-renderer.html")
public class Notification
extends GeneratedVaadinNotification<Notification>
implements HasComponents
```
Server-side component for the vaadin-notification element.

Author:

Vaadin Ltd

See Also:

Serialized Form

Nested Class Summary

Nested Classes
Modifier and Type Class and Description

static class Notification.Position
Enumeration of all available positions for notification component
- Nested classes/interfaces inherited from class com.vaadin.flow.component.notification.GeneratedVaadinNotification
  GeneratedVaadinNotification.OpenedChangeEvent<R extends GeneratedVaadinNotification<R>>

Nested Classes
Modifier and Type	Class and Description
`static class`	`Notification.Position` Enumeration of all available positions for notification component

Constructor Summary

Constructors
Constructor and Description
`Notification()` Default constructor.
`Notification(Component... components)` Creates a notification with given components inside.
`Notification(String text)` Creates a Notification with the given String rendered as its HTML text, that does not close automatically.
`Notification(String text, int duration)` Creates a Notification with given String rendered as its HTML text and given Integer rendered as its duration.
`Notification(String text, int duration, Notification.Position position)` Creates a Notification with given text String, duration and position

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`void`	`add(Component... components)` Adds the given components into this notification.
`Registration`	`addAttachListener(ComponentEventListener<AttachEvent> listener)` Adds a attach listener to this component.
`void`	`addComponentAtIndex(int index, Component component)` Adds the given component into this notification at the given index.
`Registration`	`addDetachListener(ComponentEventListener<DetachEvent> listener)` Adds a detach listener to this component.
`Registration`	`addOpenedChangeListener(ComponentEventListener<GeneratedVaadinNotification.OpenedChangeEvent<Notification>> listener)` Adds a listener for `opened-changed` events fired by the webcomponent.
`void`	`close()` Closes the notification.
`Stream<Component>`	`getChildren()` Gets the child components of this component.
`int`	`getDuration()` Description copied from corresponding location in WebComponent:
`Notification.Position`	`getPosition()` Description copied from corresponding location in WebComponent:
`boolean`	`isOpened()` Description copied from corresponding location in WebComponent:
`void`	`open()` Opens the notification.
`void`	`remove(Component... components)` Remove the given components from this notification.
`void`	`removeAll()` Remove all the components from this notification.
`void`	`setDuration(int duration)` Description copied from corresponding location in WebComponent:
`void`	`setOpened(boolean opened)` Opens or closes the notification.
`void`	`setPosition(Notification.Position position)` Set position of the notification.
`void`	`setText(String text)` Set the text of the notification with given String
`static Notification`	`show(String text)` Shows a notification in the current page with given text.
`static Notification`	`show(String text, int duration, Notification.Position position)` Shows a notification in the current page with given text, duration and position.

Methods inherited from class com.vaadin.flow.component.notification.GeneratedVaadinNotification
getDurationDouble, getPositionString, isOpenedBoolean, setDuration, setPosition

Methods inherited from class com.vaadin.flow.component.Component
addListener, fireEvent, from, get, getElement, getEventBus, getId, getLocale, getParent, getTranslation, getTranslation, getUI, hasListener, isTemplateMapped, isVisible, onAttach, onDetach, onEnabledStateChanged, set, setElement, setId, setVisible

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface com.vaadin.flow.component.HasComponents
addComponentAsFirst

Methods inherited from interface com.vaadin.flow.component.HasEnabled
isEnabled, setEnabled

Methods inherited from interface com.vaadin.flow.component.HasElement
getElement

- Constructor Detail
  - Notification
```
public Notification()
```
    Default constructor. Create an empty notification with component support and non-auto-closing
    Note: To mix text and child components in notification that also supports child components, use the Text component for the textual parts.
  - Notification
```
public Notification(String text)
```
    Creates a Notification with the given String rendered as its HTML text, that does not close automatically.
    
    Parameters:
    
    text - the text of the Notification
  - Notification
```
public Notification(String text,
                    int duration)
```
    Creates a Notification with given String rendered as its HTML text and given Integer rendered as its duration.
    Set to 0 or a negative number to disable the notification auto-closing.
    
    Parameters:
    
    text - the text of the Notification
    
    duration - the duration in milliseconds to show the notification
  - Notification
```
public Notification(String text,
                    int duration,
                    Notification.Position position)
```
    Creates a Notification with given text String, duration and position
    Set to 0 or a negative number to disable the notification auto-closing.
    
    Parameters:
    
    text - the text of the notification
    
    duration - the duration in milliseconds to show the notification
    
    position - the position of the notification. Valid enumerate values are TOP_STRETCH, TOP_START, TOP_CENTER, TOP_END, MIDDLE, BOTTOM_START, BOTTOM_CENTER, BOTTOM_END, BOTTOM_STRETCH
  - Notification
```
public Notification(Component... components)
```
    Creates a notification with given components inside.
    Note: To mix text and child components in a component that also supports child components, use the Text component for the textual parts.
    
    Parameters:
    
    components - the components inside the notification
    
    See Also:
    
    add(Component...)
- Method Detail
  - show
```
public static Notification show(String text,
                                int duration,
                                Notification.Position position)
```
    Shows a notification in the current page with given text, duration and position.
    
    Parameters:
    
    text - the text of the Notification
    
    duration - the duration in milliseconds to show the notification
    
    position - the position of the notification. Valid enumerate values are TOP_STRETCH, TOP_START, TOP_CENTER, TOP_END, MIDDLE, BOTTOM_START, BOTTOM_CENTER, BOTTOM_END, BOTTOM_STRETCH
    
    Returns:
    
    the notification
  - show
```
public static Notification show(String text)
```
    Shows a notification in the current page with given text.
    This is the convenience method for show(String, int, Position) which uses default web-component values for duration (which is 5000 ms) and position (Position.BOTTOM_START).
    
    Parameters:
    
    text - the text of the Notification
    
    Returns:
    
    the notification
  - setText
```
public void setText(String text)
```
    Set the text of the notification with given String
    NOTE: When mixing this method with Notification() and Notification(Component...). Method will remove all the components from the notification.
    
    Parameters:
    
    text - the text of the Notification
  - setPosition
```
public void setPosition(Notification.Position position)
```
    Set position of the notification.
    
    Parameters:
    
    position - the position of the notification. Valid enumerate values are TOP_STRETCH, TOP_START, TOP_CENTER, TOP_END, MIDDLE, BOTTOM_START, BOTTOM_CENTER, BOTTOM_END, BOTTOM_STRETCH, not null
  - getPosition
```
public Notification.Position getPosition()
```
    Description copied from corresponding location in WebComponent:
    
    Alignment of the notification in the viewport Valid values are top-stretch|top-start|top-center|top-end|middle|bottom-start|bottom-center|bottom-end|bottom-stretch
    This property is not synchronized automatically from the client side, so the returned value may not be the same as in client side.
    
    The default position value is Position.BOTTOM_START.
    
    Returns:
    
    the Notification.Position property from the webcomponent
  - open
```
public void open()
```
    Opens the notification.
    
    Overrides:
    
    open in class GeneratedVaadinNotification<Notification>
  - close
```
public void close()
```
    Closes the notification.
    Note: This method also removes the notification component from the DOM after closing it, unless you have added the component manually.
    
    Overrides:
    
    close in class GeneratedVaadinNotification<Notification>
  - add
```
public void add(Component... components)
```
    Adds the given components into this notification.
    The elements in the DOM will not be children of the <vaadin-notification> element, but will be inserted into an overlay that is attached into the <body>.
    NOTE: When mixing this method with Notification(String), Notification(String, int) and Notification(String, int, Position) method will remove the text content.
    
    Specified by:
    
    add in interface HasComponents
    
    Parameters:
    
    components - the components to add
  - remove
```
public void remove(Component... components)
```
    Remove the given components from this notification.
    
    Specified by:
    
    remove in interface HasComponents
    
    Parameters:
    
    components - the components to remove
  - addComponentAtIndex
```
public void addComponentAtIndex(int index,
                                Component component)
```
    Adds the given component into this notification at the given index.
    The element in the DOM will not be child of the <vaadin-notification> element, but will be inserted into an overlay that is attached into the <body>.
    NOTE: When mixing this method with Notification(String), Notification(String, int) and Notification(String, int, Position) method will remove the text content.
    
    Specified by:
    
    addComponentAtIndex in interface HasComponents
    
    Parameters:
    
    index - the index, where the component will be added.
    
    component - the component to add
  - removeAll
```
public void removeAll()
```
    Remove all the components from this notification.
    
    Specified by:
    
    removeAll in interface HasComponents
  - getChildren
```
public Stream<Component> getChildren()
```
    Description copied from class: Component
    
    Gets the child components of this component.
    The default implementation finds child components by traversing each child Element tree.
    If the component is injected to a PolymerTemplate using the @Id annotation the getChildren method will only return children added from the server side and will not return any children declared in the template file.
    
    Overrides:
    
    getChildren in class Component
    
    Returns:
    
    the child components of this component
    
    See Also:
    
    Id
  - setOpened
```
public void setOpened(boolean opened)
```
    Opens or closes the notification.
    Note: You don't need to add the component anywhere before opening it. Since <vaadin-notification>'s location in the DOM doesn't really matter, opening a notification will automatically add it to the <body> if it's not yet attached anywhere.
    
    Overrides:
    
    setOpened in class GeneratedVaadinNotification<Notification>
    
    Parameters:
    
    opened - true to open the notification, false to close it
  - isOpened
```
public boolean isOpened()
```
    Description copied from corresponding location in WebComponent:
    
    True if the notification is currently displayed.
    This property is synchronized automatically from client side when a 'opened-changed' event happens.
    
    Returns:
    
    the opened property from the webcomponent
  - addOpenedChangeListener
```
public Registration addOpenedChangeListener(ComponentEventListener<GeneratedVaadinNotification.OpenedChangeEvent<Notification>> listener)
```
    Description copied from class: GeneratedVaadinNotification
    
    Adds a listener for opened-changed events fired by the webcomponent.
    
    Overrides:
    
    addOpenedChangeListener in class GeneratedVaadinNotification<Notification>
    
    Parameters:
    
    listener - the listener
    
    Returns:
    
    a Registration for removing the event listener
  - setDuration
```
public void setDuration(int duration)
```
    Description copied from corresponding location in WebComponent:
    
    The duration in milliseconds to show the notification. Set to 0 or a negative number to disable the notification auto-closing.
    
    Parameters:
    
    duration - the value to set
  - getDuration
```
public int getDuration()
```
    Description copied from corresponding location in WebComponent:
    
    The duration in milliseconds to show the notification. Set to 0 or a negative number to disable the notification auto-closing.
    This property is not synchronized automatically from the client side, so the returned value may not be the same as in client side.
    
    Returns:
    
    the duration property from the webcomponent
  - addAttachListener
```
public Registration addAttachListener(ComponentEventListener<AttachEvent> listener)
```
    Adds a attach listener to this component.
    Note: To listen for opening the notification, you should use addOpenedChangeListener(ComponentEventListener).
    
    Specified by:
    
    addAttachListener in interface AttachNotifier
    
    Parameters:
    
    listener - the listener to add, not null
    
    Returns:
    
    a handle that can be used for removing the listener
  - addDetachListener
```
public Registration addDetachListener(ComponentEventListener<DetachEvent> listener)
```
    Adds a detach listener to this component.
    Note: To listen for closing the notification, you should use addOpenedChangeListener(ComponentEventListener), as the component is not necessarily removed from the DOM when closing.
    
    Specified by:
    
    addDetachListener in interface DetachNotifier
    
    Parameters:
    
    listener - the listener to add, not null
    
    Returns:
    
    a handle that can be used for removing the listener

Class Notification

Nested Class Summary

Nested classes/interfaces inherited from class com.vaadin.flow.component.notification.GeneratedVaadinNotification

Constructor Summary

Method Summary

Methods inherited from class com.vaadin.flow.component.notification.GeneratedVaadinNotification

Methods inherited from class com.vaadin.flow.component.Component

Methods inherited from class java.lang.Object

Methods inherited from interface com.vaadin.flow.component.HasComponents

Methods inherited from interface com.vaadin.flow.component.HasEnabled

Methods inherited from interface com.vaadin.flow.component.HasElement

Constructor Detail

Notification

Notification

Notification

Notification

Notification

Method Detail

show

show

setText

setPosition

getPosition

open

close

add

remove

addComponentAtIndex

removeAll

getChildren

setOpened

isOpened

addOpenedChangeListener

setDuration

getDuration

addAttachListener

addDetachListener