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#467 data-bus: App: add description of the pattern

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Paul Campbell 2017-04-01 19:26:41 +01:00
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data-bus/src/main/java/com/iluwatar/databus/App.java
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@ -35,6 +35,17 @@ import java.time.LocalDateTime;
* The Data Bus pattern
* <p>
* <p>{@see http://wiki.c2.com/?DataBusPattern}</p>
* <p>
* <p>The Data-Bus pattern provides a method where different parts of an application may
* pass messages between each other without needing to be aware of the other's existence.</p>
* <p>Similar to the {@code ObserverPattern}, members register themselves with the {@link DataBus}
* and may then receive each piece of data that is published to the Data-Bus. The member
* may react to any given message or not.</p>
* <p>It allows for Many-to-Many distribution of data, as there may be any number of
* publishers to a Data-Bus, and any number of members receiving the data. All members
* will receive the same data, the order each receives a given piece of data, is an
* implementation detail.</p>
* <p>Members may unsubscribe from the Data-Bus to stop receiving data.</p>
*
* @author Paul Campbell (pcampbell@kemitix.net)
*/