ChannelEntryPoint (spring-security-docs-manual 5.5.2 API)

All Known Implementing Classes:

AbstractRetryEntryPoint, RetryWithHttpEntryPoint, RetryWithHttpsEntryPoint
```
public interface ChannelEntryPoint
```
May be used by a ChannelProcessor to launch a web channel.
ChannelProcessors can elect to launch a new web channel directly, or they can delegate to another class. The ChannelEntryPoint is a pluggable interface to assist ChannelProcessors in performing this delegation.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`commence(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response)`	Commences a secure channel.

- Method Detail
  - commence
```
void commence(javax.servlet.http.HttpServletRequest request,
              javax.servlet.http.HttpServletResponse response)
       throws java.io.IOException,
              javax.servlet.ServletException
```
    Commences a secure channel.
    Implementations should modify the headers on the ServletResponse as necessary to commence the user agent using the implementation's supported channel type.
    
    Parameters:
    
    request - that a ChannelProcessor has rejected
    
    response - so that the user agent can begin using a new channel
    
    Throws:
    
    java.io.IOException
    
    javax.servlet.ServletException