org.eclipse.jetty.util.component

## Interface LifeCycle

- All Known Subinterfaces:
    AppProvider, Connector, Handler, HandlerContainer, RequestLog, Server.Graceful, SessionIdManager, SessionManager, SslConnector
  All Known Implementing Classes:
    AbstractConnector, AbstractHandler, AbstractHandlerContainer, AbstractLeakPreventer, AbstractLifeCycle, AbstractNIOConnector, AbstractSessionIdManager, AbstractSessionManager, AggregateLifeCycle, Ajp13SocketConnector, AppContextLeakPreventer, AWTLeakPreventer, BlockingChannelConnector, ConnectHandler, ConnectorServer, ConstraintSecurityHandler, ContextDeployer, ContextHandler, ContextHandlerCollection, ContextProvider, DataSourceLoginService, DebugHandler, DefaultHandler, DeploymentManager, DOMLeakPreventer, DriverManagerLeakPreventer, ErrorHandler, ErrorPageErrorHandler, ExecutorThreadPool, FilterHolder, GCThreadLeakPreventer, GzipHandler, HandlerCollection, HandlerList, HandlerWrapper, HashLoginService, HashSessionIdManager, HashSessionManager, Holder, HotSwapHandler, HttpBuffersImpl, HttpClient, InheritedChannelConnector, IPAccessHandler, JAASLoginService, Java2DLeakPreventer, JDBCLoginService, JDBCSessionIdManager, JDBCSessionManager, LDAPLeakPreventer, LocalConnector, LoginConfigurationLeakPreventer, MappedLoginService, MBeanContainer, MovedContextHandler, NCSARequestLog, NestedConnector, NetworkTrafficSelectChannelConnector, PropertyUserStore, ProxyHandler, QueuedThreadPool, RequestLogHandler, ResourceHandler, RewriteHandler, Scanner, ScanningAppProvider, ScopedHandler, SecurityHandler, SecurityProviderLeakPreventer, SelectChannelConnector, SelectorManager, Server, ServletContextHandler, ServletHandler, ServletHandler, ServletHolder, SessionHandler, ShutdownHandler, SocketConnector, SpnegoLoginService, SslContextFactory, SslContextFactory, SslSelectChannelConnector, SslSocketConnector, StatisticsHandler, WebAppContext, WebAppDeployer, WebAppProvider, WebSocketClientFactory, WebSocketFactory, WebSocketHandler

      public interface LifeCycle

  The lifecycle interface for generic components.
  Classes implementing this interface have a defined life cycle defined by the methods of this interface.

- - ### Nested Class Summary

    Nested Classes
    Modifier and Type | Interface and Description
    --- | ---
    `static interface` | `LifeCycle.Listener` Listener.

  - ### Method Summary

    Methods
    Modifier and Type | Method and Description
    --- | ---
    `void` | `addLifeCycleListener(LifeCycle.Listener listener)`
    `boolean` | `isFailed()`
    `boolean` | `isRunning()`
    `boolean` | `isStarted()`
    `boolean` | `isStarting()`
    `boolean` | `isStopped()`
    `boolean` | `isStopping()`
    `void` | `removeLifeCycleListener(LifeCycle.Listener listener)`
    `void` | `start()` Starts the component.
    `void` | `stop()` Stops the component.

- - ### Method Detail

    - #### start

          void start()
                     throws Exception

      Starts the component.
      Throws:
        `Exception` - If the component fails to start
      See Also:
        `isStarted()`, `stop()`, `isFailed()`

    - #### stop

          void stop()
                    throws Exception

      Stops the component. The component may wait for current activities to complete normally, but it can be interrupted.
      Throws:
        `Exception` - If the component fails to stop
      See Also:
        `isStopped()`, `start()`, `isFailed()`

    - #### isRunning

          boolean isRunning()

      Returns:
        true if the component is starting or has been started.

    - #### isStarted

          boolean isStarted()

      Returns:
        true if the component has been started.
      See Also:
        `start()`, `isStarting()`

    - #### isStarting

          boolean isStarting()

      Returns:
        true if the component is starting.
      See Also:
        `isStarted()`

    - #### isStopping

          boolean isStopping()

      Returns:
        true if the component is stopping.
      See Also:
        `isStopped()`

    - #### isStopped

          boolean isStopped()

      Returns:
        true if the component has been stopped.
      See Also:
        `stop()`, `isStopping()`

    - #### isFailed

          boolean isFailed()

      Returns:
        true if the component has failed to start or has failed to stop.

    - #### addLifeCycleListener

          void addLifeCycleListener(LifeCycle.Listener listener)

    - #### removeLifeCycleListener

          void removeLifeCycleListener(LifeCycle.Listener listener)

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