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org.springframework.context
Interface ApplicationListener<E extends ApplicationEvent>
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- Type Parameters:
E- the specific ApplicationEvent subclass to listen to
- All Superinterfaces:
- java.util.EventListener
- All Known Subinterfaces:
- GenericApplicationListener, SmartApplicationListener
- All Known Implementing Classes:
- ApplicationListenerMethodAdapter, DefaultSimpUserRegistry, GenericApplicationListenerAdapter, JmsListenerEndpointRegistry, MultiServerUserRegistry, ResourceUrlProvider, ResourceUrlProvider, ScheduledAnnotationBeanPostProcessor, SourceFilteringListener, UserRegistryMessageHandler
- Functional Interface:
- This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.
@FunctionalInterface public interface ApplicationListener<E extends ApplicationEvent> extends java.util.EventListenerInterface to be implemented by application event listeners. Based on the standardjava.util.EventListenerinterface for the Observer design pattern.As of Spring 3.0, an ApplicationListener can generically declare the event type that it is interested in. When registered with a Spring ApplicationContext, events will be filtered accordingly, with the listener getting invoked for matching event objects only.
- Author:
- Rod Johnson, Juergen Hoeller
- See Also:
ApplicationEventMulticaster
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Method Summary
All Methods Instance Methods Abstract Methods Modifier and Type Method and Description voidonApplicationEvent(E event)Handle an application event.
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Method Detail
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onApplicationEvent
void onApplicationEvent(E event)
Handle an application event.- Parameters:
event- the event to respond to
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