@FunctionalInterface public interface VaadinServiceInitListener extends EventListener, Serializable
VaadinServiceinitialization events. The listener can add listeners and request handlers to the service.
Listener instances are by default discovered and instantiated using
ServiceLoader. This means that all implementations must have a
zero-argument constructor and the fully qualified name of the implementation
class must be listed on a separate line in a
present in the jar file containing the implementation class.
Integrations for specific runtime environments, such as OSGi or Spring, might also provide other ways of discovering listeners.
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