December 2017
Intermediate to advanced
468 pages
13h 12m
English
book
Architectural Patterns
by Anupama Murali, Pethuru Raj, Harihara Subramanian J, Pethuru Raj Chelliah
Content preview from Architectural Patterns
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Event message patterns
Several applications communicate with one another using events. If event-based communication happens from using messages, then event message patterns are used. The event message pattern is depicted in the following diagram:
In an event message pattern, if the subject has to announce an event, it will first create an event object. This object is then wrapped in a message and sent on a channel. The observer will receive the event from the channel and process it. Messaging in events does not alter the event notification; it just ensures that the notification reaches the observer.
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