Package org.eclipse.jetty.util.component
Interface Graceful
- All Known Subinterfaces:
Connector
,NetworkConnector
- All Known Implementing Classes:
AbstractConnector
,AbstractNetworkConnector
,ContextHandler
,Graceful.Shutdown
,LocalConnector
,MovedContextHandler
,NetworkTrafficSelectChannelConnector
,NetworkTrafficServerConnector
,ServerConnector
,ServletContextHandler
,StatisticsHandler
,WebAppContext
public interface Graceful
Jetty components that wish to be part of a Graceful shutdown implement this interface so that
the shutdown()
method will be called to initiate a shutdown. Shutdown operations
can fall into the following categories:
- Preventing new load from being accepted (eg connectors stop accepting connections)
- Preventing existing load expanding (eg stopping existing connections accepting new requests)
- Waiting for existing load to complete (eg waiting for active request count to reduce to 0)
- Performing cleanup operations that may take time (eg closing an SSL connection)
The Future
returned by the the shutdown call will be completed to indicate the shutdown operation is completed.
Some shutdown operations may be instantaneous and always return a completed future.
Graceful shutdown is typically orchestrated by the doStop methods of Server or ContextHandler (for a full or partial shutdown respectively).
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Nested Class Summary
Nested ClassesModifier and TypeInterfaceDescriptionstatic class
A utility Graceful that uses aFutureCallback
to indicate if shutdown is completed. -
Method Summary
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Method Details
-
shutdown
-
isShutdown
boolean isShutdown()
-