org.eclipse.jetty.continuation
Class ContinuationFilter

java.lang.Object
  org.eclipse.jetty.continuation.ContinuationFilter

All Implemented Interfaces:

Filter

public class ContinuationFilter
extends Object
implements Filter

ContinuationFilter must be applied to servlet paths that make use of the asynchronous features provided by ContinuationFilter.FilteredContinuation APIs, but that are deployed in servlet containers that are neither Jetty (>= 7) nor 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

jetty6

Boolean to force use of Jetty 6 continuations

faux

Boolean to force use of faux continuations

If the servlet container is not Jetty (either 6 or 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

static interface

ContinuationFilter.FilteredContinuation

Constructor Summary

ContinuationFilter()

Method Summary

void	destroy()
void	doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
void	init(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(FilterConfig filterConfig)
          throws ServletException

Specified by:

init in interface Filter

Throws:

ServletException

doFilter

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

Specified by:

doFilter in interface Filter

Throws:

IOException

ServletException

destroy

public void destroy()

Specified by:

destroy in interface Filter