HttpUpgradeHandler (Servlet 5.0 API Documentation - Apache Tomcat 10.0.27)

```
public interface HttpUpgradeHandler
```
Interface between the HTTP upgrade process and the new protocol.

Since:

Servlet 3.1

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`destroy()`	This method is called after the upgraded connection has been closed.
`void`	`init(WebConnection connection)`	This method is called once the request/response pair where `HttpServletRequest.upgrade(Class)` is called has completed processing and is the point where control of the connection passes from the container to the `HttpUpgradeHandler`.

- Method Detail
  - init
```
void init(WebConnection connection)
```
    This method is called once the request/response pair where HttpServletRequest.upgrade(Class) is called has completed processing and is the point where control of the connection passes from the container to the HttpUpgradeHandler.
    
    Parameters:
    
    connection - The connection that has been upgraded
  - destroy
```
void destroy()
```
    This method is called after the upgraded connection has been closed.