We use cookies to serve our customers and website visitors in the best possible way. Cookies are used for the proper functioning of the website and for improving the user experience, monitoring visitor traffic and marketing purposes. By continuing to browse the site, you agree to our use of cookies. You can read more about cookies here.
com.vaadin.flow.data.selection.
Package com.vaadin.flow.data.selection
Class SingleSelectionEvent<C extends Component,T>
java.lang.Object
java.util.EventObject
com.vaadin.flow.component.ComponentEvent<C>
com.vaadin.flow.component.AbstractField.ComponentValueChangeEvent<C,T>
com.vaadin.flow.data.selection.SingleSelectionEvent<C,T>
Type Parameters:
C - the selection component type
T - the type of the selected item
All Implemented Interfaces:
HasValue.ValueChangeEvent<T>, SelectionEvent<C,, Serializable
public class SingleSelectionEvent<C extends Component,T>
extends AbstractField.ComponentValueChangeEvent<C,T>
implements SelectionEvent<C,T>
Fired when the selection changes in a listing component.
Since:
1.0.
Author:
Vaadin Ltd
See Also:
-
Field Summary
Fields inherited from class java.util.EventObject
source -
Constructor Summary
ConstructorsConstructorDescriptionSingleSelectionEvent(C listing, SingleSelect<C, T> source, T oldSelection, boolean userOriginated) Creates a new selection change event in a component.
-
Method Summary
Modifier and TypeMethodDescriptionGets all the currently selected items.
Get first selected data item.
Returns an optional of the item that was selected, or an empty optional if a previously selected item was deselected.
The listing component on which the Event initially occurred.
Methods inherited from class com.vaadin.flow.component.AbstractField.ComponentValueChangeEvent
getHasValue, getOldValue, getValue, toStringMethods inherited from class com.vaadin.flow.component.ComponentEvent
isFromClient, unregisterListenerMethods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, waitMethods inherited from interface com.vaadin.flow.component.HasValue.ValueChangeEvent
isFromClientMethods inherited from interface com.vaadin.flow.data.selection.SelectionEvent
isFromClient
-
Constructor Details
-
SingleSelectionEvent
public SingleSelectionEvent(C listing, SingleSelect<C, T> source, T oldSelection, boolean userOriginated) Creates a new selection change event in a component.
Parameters:
listing- the listing component where the event originatedsource- the single select sourceoldSelection- the item that was previously selecteduserOriginated-trueif this event originates from the client,falseotherwise.
-
-
Method Details
-
getSelectedItem
Returns an optional of the item that was selected, or an empty optional if a previously selected item was deselected.
Returns:
the selected item or an empty optional if deselected
See Also:
-
getSource
The listing component on which the Event initially occurred.
Specified by:
getSourcein interfaceSelectionEvent<C extends Component,T> Overrides:
getSourcein classComponentEvent<C extends Component>Returns:
The listing component on which the Event initially occurred.
-
getFirstSelectedItem
Description copied from interface:
SelectionEventGet first selected data item.
This is the same as
getSelectedItem()in case of single selection.Specified by:
getFirstSelectedItemin interfaceSelectionEvent<C extends Component,T> Returns:
the first selected item.
-
getAllSelectedItems
Description copied from interface:
SelectionEventGets all the currently selected items.
This method applies more to multiselection - for single select it returns either an empty set or a set containing the only selected item.
Specified by:
getAllSelectedItemsin interfaceSelectionEvent<C extends Component,T> Returns:
return all the selected items, if any, never
null
-