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The Request-Response Loop
WebObjects applications are event driven, but instead of responding to mouse and keyboard events, they respond to HTTP requests. The main loop of a WebObjects application is called the request-response loop. During each cycle of the request-response loop, the application receives an HTTP request for an action, responds to it, and then waits for the next request. The application continues to respond to requests until it terminates.The basic request-response loop is illustrated in Figure 8, below.
Figure 8. The Request-Response Loop
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