org.eclipse.jetty.continuation

Class ContinuationFilter

java.lang.Object

org.eclipse.jetty.continuation.ContinuationFilter

All Implemented Interfaces:

javax.servlet.Filter

public class ContinuationFilter
extends Object
implements javax.servlet.Filter

ContinuationFilter must be applied to servlet paths that make use of the asynchronous features provided by Continuation APIs, but that are deployed in servlet containers that are a compliant Servlet 3.0 container.

The following init parameters may be used to configure the filter (these are mostly for testing):

debug

Boolean controlling debug output

faux

Boolean to force use of faux continuations

If the servlet container is not Jetty 7+ nor a Servlet 3 container, then "faux" continuations will be used.

Faux continuations will just put the thread that called Continuation.suspend() in wait, and will notify that thread when Continuation.resume() or Continuation.complete() is called.

Faux continuations are not threadless continuations (they are "faux" - fake - for this reason) and as such they will scale less than proper continuations.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	ContinuationFilter.FilteredContinuation

Constructor Summary

Constructors

Constructor and Description
ContinuationFilter()

Method Summary

Modifier and Type	Method and Description
void	destroy()
void	doFilter(javax.servlet.ServletRequest request, javax.servlet.ServletResponse response, javax.servlet.FilterChain chain)
void	init(javax.servlet.FilterConfig filterConfig)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ContinuationFilter

public ContinuationFilter()

Method Detail

init

public void init(javax.servlet.FilterConfig filterConfig)
          throws javax.servlet.ServletException

Specified by:

init in interface javax.servlet.Filter

Throws:

javax.servlet.ServletException

doFilter

public void doFilter(javax.servlet.ServletRequest request,
                     javax.servlet.ServletResponse response,
                     javax.servlet.FilterChain chain)
              throws IOException,
                     javax.servlet.ServletException

Specified by:

doFilter in interface javax.servlet.Filter

Throws:

IOException

javax.servlet.ServletException

destroy

public void destroy()

Specified by:

destroy in interface javax.servlet.Filter