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layout, title, folder, permalink, categories, tags
| layout | title | folder | permalink | categories | tags | ||
|---|---|---|---|---|---|---|---|
| pattern | Data Bus | data-bus | /patterns/data-bus/ | Architectural |
|
Intent
Allows send of messages/events between components of an application without them needing to know about each other. They only need to know about the type of the message/event being sent.
Applicability
Use Data Bus pattern when
- you want your components to decide themselves which messages/events they want to receive
- you want to have many-to-many communication
- you want your components to know nothing about each other
Related Patterns
Data Bus is similar to
- Mediator pattern with Data Bus Members deciding for themselves if they want to accept any given message
- Observer pattern but supporting many-to-many communication
- Publish/Subscribe pattern with the Data Bus decoupling the publisher and the subscriber