Dear Wiki user,

You have subscribed to a wiki page or wiki category on "Jakarta-httpclient 
Wiki" for change notification.

The following page has been changed by RolandWeber:
http://wiki.apache.org/jakarta-httpclient/UseCases/SingleAsyncRequest

New page:
= Use Case: Single Asynchronous Request =

== Description ==

I want to send a request for which I expect a long response time without 
blocking the application immediately.
[[BR]]
Later, when my application needs the response, it will receive the response 
with a blocking operation.

== Related / Out of Scope ==

 * multiple asynchronous requests to the same server
 * multiple asynchronous requests to different servers
 * sequences of requests, like chasing redirects


= Discussion =

This is the most basic case of asynchronous communication, possibly useful if 
the request includes a large body
or if the server is expected to respond with a huge delay.
It can be used to interlock HTTP communication with something else, but 
eventually the application has to receive
the response synchronously, which limits the applicability. However, a separate 
notification mechanism can be
designed to indicate to the application that the response is available.

The focus of this use case is the design of an interface for sending the 
request asynchronously, and for
receiving the response synchronously. An initial implementation of that 
interface could spawn a background
thread for each request that is sent. The responsibility for processing of the 
response headers can be
assigned to the application thread as well as to the background thread.

---------------------------------------------------------------------
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]

Reply via email to