com.vaadin.flow.router

Annotation Type PreserveOnRefresh

@Retention(value=RUNTIME)
 @Target(value=TYPE)
 @Inherited
 @Documented
public @interface PreserveOnRefresh

Indicates that a previous view instance should be-reused when reloading a location in the same browser window/tab.

This annotation can also be used, when exporting embeddable web components. Place this annotation onto the class extending WebComponentExporter. This flags all the embedded components from that exporter to be preserved on refresh. Due to the challenge of uniquely identifying embedded components through refresh. When embedded, the component is identified by window name and a generated component id. This means, that if the same component instance is embedded onto two pages within the same window context, the state can be transferred between locations. To avoid state leaking, provide unique id for the embedded web component. The id must be unique across all the pages where instances of the web component are embedded.

Since:

2.0