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What Are Comet and Reverse Ajax?

Abstract

The term “Comet” was coined by Alex Russell of the Dojo project to describe exchanges between a client and a server in which the server, rather than the client, initiates the contact. Joe Walker of the Direct Web Remoting (DWR) project refers to a similar mechanism as “Reverse Ajax.” Much like when the term “Ajax” was coined in 2005, the name “Comet” has served as a rallying point around a number of previously disconnected technological projects, such as the nonblocking I/O introduced into Java in 2002, message queue technologies, and, further back, HTTP 1.1’s persistent connections and the push technologies of the late 1990s.

Keywords

Domain Model Conversational State Collaborative Application Push Technology Live Chat 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Dave Crane, Phil McCarthy 2008

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