ServletContextListener (Java Servlet 4.0)

All Superinterfaces:

EventListener
```
public interface ServletContextListener
extends EventListener
```
Interface for receiving notification events about ServletContext lifecycle changes.
In order to receive these notification events, the implementation class must be either declared in the deployment descriptor of the web application, annotated with WebListener, or registered via one of the addListener methods defined on ServletContext.
Implementations of this interface are invoked at their contextInitialized(javax.servlet.ServletContextEvent) method in the order in which they have been declared, and at their contextDestroyed(javax.servlet.ServletContextEvent) method in reverse order.

Since:

Servlet 2.3

See Also:

ServletContextEvent

Method Summary

All Methods Instance Methods Default Methods
Modifier and Type	Method	Description
`default void`	`contextDestroyed(ServletContextEvent sce)`	Receives notification that the ServletContext is about to be shut down.
`default void`	`contextInitialized(ServletContextEvent sce)`	Receives notification that the web application initialization process is starting.

- Method Detail
  - contextInitialized
```
default void contextInitialized(ServletContextEvent sce)
```
    Receives notification that the web application initialization process is starting.
    All ServletContextListeners are notified of context initialization before any filters or servlets in the web application are initialized.
    
    Implementation Requirements:
    
    The default implementation takes no action.
    
    Parameters:
    
    sce - the ServletContextEvent containing the ServletContext that is being initialized
  - contextDestroyed
```
default void contextDestroyed(ServletContextEvent sce)
```
    Receives notification that the ServletContext is about to be shut down.
    All servlets and filters will have been destroyed before any ServletContextListeners are notified of context destruction.
    
    Implementation Requirements:
    
    The default implementation takes no action.
    
    Parameters:
    
    sce - the ServletContextEvent containing the ServletContext that is being destroyed