Interface Lifecycle
- All Known Subinterfaces:
ConfigurableApplicationContext
,ConfigurableWebApplicationContext
,LifecycleProcessor
,MessageListenerContainer
,SmartLifecycle
- All Known Implementing Classes:
AbstractApplicationContext
,AbstractBrokerMessageHandler
,AbstractHandshakeHandler
,AbstractJmsListeningContainer
,AbstractMessageListenerContainer
,AbstractPollingMessageListenerContainer
,AbstractRefreshableApplicationContext
,AbstractRefreshableConfigApplicationContext
,AbstractRefreshableWebApplicationContext
,AbstractXmlApplicationContext
,AnnotatedEndpointConnectionManager
,AnnotationConfigApplicationContext
,AnnotationConfigWebApplicationContext
,ClassPathXmlApplicationContext
,ConnectionManagerSupport
,DefaultHandshakeHandler
,DefaultLifecycleProcessor
,DefaultMessageListenerContainer
,DefaultSockJsService
,EndpointConnectionManager
,FileSystemXmlApplicationContext
,GenericApplicationContext
,GenericGroovyApplicationContext
,GenericMessageEndpointManager
,GenericWebApplicationContext
,GenericXmlApplicationContext
,GroovyWebApplicationContext
,HandshakeWebSocketService
,JettyWebSocketClient
,JettyWebSocketClient
,JettyXhrTransport
,JmsListenerEndpointRegistry
,JmsMessageEndpointManager
,SchedulerFactoryBean
,SimpAnnotationMethodMessageHandler
,SimpleBrokerMessageHandler
,SimpleMessageListenerContainer
,SockJsClient
,SockJsHttpRequestHandler
,StaticApplicationContext
,StaticWebApplicationContext
,StompBrokerRelayMessageHandler
,SubProtocolWebSocketHandler
,TransportHandlingSockJsService
,UserDestinationMessageHandler
,WebSocketAnnotationMethodMessageHandler
,WebSocketConnectionManager
,WebSocketHandlerMapping
,WebSocketHttpRequestHandler
,WebSocketStompClient
,WebSocketTransport
,WebSocketTransportHandler
,XmlWebApplicationContext
SmartLifecycle
for that purpose.
Can be implemented by both components (typically a Spring bean defined in a
Spring context) and containers (typically a Spring ApplicationContext
itself). Containers will propagate start/stop signals to all components that
apply within each container, e.g. for a stop/restart scenario at runtime.
Can be used for direct invocations or for management operations via JMX.
In the latter case, the MBeanExporter
will typically be defined with an
InterfaceBasedMBeanInfoAssembler
,
restricting the visibility of activity-controlled components to the Lifecycle
interface.
Note that the present Lifecycle
interface is only supported on
top-level singleton beans. On any other component, the Lifecycle
interface will remain undetected and hence ignored. Also, note that the extended
SmartLifecycle
interface provides sophisticated integration with the
application context's startup and shutdown phases.
- Since:
- 2.0
- Author:
- Juergen Hoeller
- See Also:
-
Method Summary
-
Method Details
-
start
void start()Start this component.Should not throw an exception if the component is already running.
In the case of a container, this will propagate the start signal to all components that apply.
- See Also:
-
stop
void stop()Stop this component, typically in a synchronous fashion, such that the component is fully stopped upon return of this method. Consider implementingSmartLifecycle
and itsstop(Runnable)
variant when asynchronous stop behavior is necessary.Note that this stop notification is not guaranteed to come before destruction: On regular shutdown,
Lifecycle
beans will first receive a stop notification before the general destruction callbacks are being propagated; however, on hot refresh during a context's lifetime or on aborted refresh attempts, a given bean's destroy method will be called without any consideration of stop signals upfront.Should not throw an exception if the component is not running (not started yet).
In the case of a container, this will propagate the stop signal to all components that apply.
-
isRunning
boolean isRunning()Check whether this component is currently running.In the case of a container, this will return
true
only if all components that apply are currently running.- Returns:
- whether the component is currently running
-