plugin_listeners.md: implementation note

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Yann Cébron 2020-04-30 16:49:14 +02:00
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commit 6d373a771b

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@ -5,6 +5,8 @@ title: Plugin Listeners
> **NOTE** Defining listeners in `plugin.xml` is supported starting with version 2019.3 of the platform.
> **NOTE** NOTE: Listener implementations must be stateless and may not implement life-cycle (e.g., `Disposable`).
_Listeners_ allow plugins to declaratively subscribe to events delivered through the message bus (see [Messaging infrastructure](/reference_guide/messaging_infrastructure.md) for details).
You can define both application- and project-level listeners.