Event Descriptions

From Informatics

This page serves to document the events and associated event handlers (if they exist) in geworkbench.

#	Event Name	Description	Handler
1	ProjectNodeAddedEvent	When a node is added to the project panel, event is published.	ProjectNodeAddedEventHandler.
2

To use events, see How to throw/catch events in geWorkbench

To trace the events, see How to trace events in geWorkbench

This page was not close to be complete. I think a more important piece of information is not how but when and whether to use event publishing/subscription as the communication mechanism between components and between components and core.

• the scenario when we probably should use event publishing/subscription:
  • the subscribers are potentially to be multiple
  • the subscribers are unknown to the publisher in advence
• the scenario when we probably should not user event publishing/subscription
  • the subscriber is one known component. even more so when the subscriber is a class in the core, e.g. ProjectPanel.
  • from the subscriber's pointer of view, be cautious if you want to do something slow when you receive the event, especially in synchronous mode.