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Publish–subscribe is a sibling of the message queue paradigm, and is typically one part of a larger message-oriented middleware system. Most messaging systems support both the pub/sub and message queue models in their API ; e.g., Java Message Service (JMS).
It implements a publish–subscribe pattern for sending and receiving data, events, and commands among the nodes. Nodes that produce information (publishers) create "topics" (e.g., temperature, location, pressure) and publish "samples". DDS delivers the samples to subscribers that declare an interest in that topic.
WebSub (formerly PubSubHubbub) is an open protocol for distributed publish–subscribe communication on the Internet. [1] Initially designed to extend the Atom (and RSS) protocols for data feeds, the protocol can be applied to any data type (e.g. HTML, text, pictures, audio, video) as long as it is accessible via HTTP.
In push technology, clients can express their preferences for certain types of information or data, typically through a process known as the publish–subscribe model. In this model, a client "subscribes" to specific information channels hosted by a server.
5. Under the 'Web and iCal Access' section, click a radio button to make your calendar Private or Public. 6. Click Email This Link under HTML (to share as a web page) or ICAL (if you want to share with other iCal applications). 7. In the email window that appears, enter the email address of the person you want to share your calendar with. 8 ...
Publish and Subscribe was a document linking model introduced by Apple Computer in System 7.Named the Edition Manager in developer documentation, [1] it extended the existing cut and paste editing model with a notification system; "subscribers" could include parts of "published" documents within themselves, and changes to the original published document would be noticed and updated by the ...
Screenshot of an iOS 17 home screen, displaying various built-in apps. Apple Inc. develops many apps for iOS that come bundled by default or installed through system updates. . Several of the default apps found on iOS have counterparts on Apple's other operating systems such as macOS, iPadOS, watchOS, and tvOS, which are often modified versions of or similar to the iOS applicati
The publish-subscribe technology described there was invented by Frank Schmuck, who probably should get the credit as the first person to ever invent a fully functional publish-subscribe solution. Encyclopedia articles need this sort of historical content or they basic write people out of history.