```
public interface LifecycleListener
```
Any class implementing this interface will be registered as an application lifecycle listener. As the application starts and stops, these callbacks will be invoked to allow for executing startup and/or shutdown code.
LifecycleListeners are singletons, meaning that the same instance will be used for all method invocations. You can use injection and interception at all phases.

All Methods Instance Methods Default Methods
Modifier and Type	Method	Description
`default void`	`started()`	This method is called by SeedStack just after the application has started up.
`default void`	`starting()`	This method is called by SeedStack just before the application is starting.
`default void`	`stopped()`	This method is called by SeedStack just after the application has been shut down.
`default void`	`stopping()`	This method is called by SeedStack just before the application is shutting down.

Interface LifecycleListener