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java.lang.Objectorg.eclipse.jetty.continuation.ContinuationFilter
public class ContinuationFilter
ContinuationFilter
This filter may be applied to webapplication that use the asynchronous
features of the ContinuationFilter.FilteredContinuation API, but that are deployed in container
that is neither Jetty (>=6.1) nor a Servlet3.0 container.
The following init parameters may be used to configure the filter (these are mostly for testing):
| Nested Class Summary | |
|---|---|
static interface |
ContinuationFilter.FilteredContinuation
|
| Constructor Summary | |
|---|---|
ContinuationFilter()
|
|
| Method Summary | |
|---|---|
void |
destroy()
Called by the web container to indicate to a filter that it is being taken out of service. |
void |
doFilter(ServletRequest request,
ServletResponse response,
FilterChain chain)
The doFilter method of the Filter is called by the
container each time a request/response pair is passed through the
chain due to a client request for a resource at the end of the chain. |
void |
init(FilterConfig filterConfig)
Called by the web container to indicate to a filter that it is being placed into service. |
| Methods inherited from class java.lang.Object |
|---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
|---|
public ContinuationFilter()
| Method Detail |
|---|
public void init(FilterConfig filterConfig)
throws ServletException
FilterThe servlet container calls the init method exactly once after instantiating the filter. The init method must complete successfully before the filter is asked to do any filtering work.
The web container cannot place the filter into service if the init method either
init in interface FilterServletException
public void doFilter(ServletRequest request,
ServletResponse response,
FilterChain chain)
throws java.io.IOException,
ServletException
FilterdoFilter method of the Filter is called by the
container each time a request/response pair is passed through the
chain due to a client request for a resource at the end of the chain.
The FilterChain passed in to this method allows the Filter to pass
on the request and response to the next entity in the chain.
A typical implementation of this method would follow the following pattern:
chain.doFilter()),
doFilter in interface Filterjava.io.IOException
ServletExceptionpublic void destroy()
FilterThis method is only called once all threads within the filter's doFilter method have exited or after a timeout period has passed. After the web container calls this method, it will not call the doFilter method again on this instance of the filter.
This method gives the filter an opportunity to clean up any resources that are being held (for example, memory, file handles, threads) and make sure that any persistent state is synchronized with the filter's current state in memory.
destroy in interface Filter
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