v0.4.0

Adds a counter to keep track of how many consecutive errors have been registered on a service.

Full Changelog: v0.3.1...v0.4.0

v0.3.1

Simplifies the registering of callback functions, fixing an issue where a non-comparable observer would cause a runtime panic when added to the observer map.

• Method RegisterCallback replaces Register.
• Method DeregisterCallback replaces Deregister.
• Method OnNotify has been removed.

Full Changelog: v0.3.0...v0.3.1

v0.3.0

Changes to the basic design, including:

• New Initializing state.
• Not Ready state renamed to Error.
• Error values are now only applicable to the Error state.
• State changes are now notified via callbacks.
• Collections now keep track of the error values of their monitored services.
• Collections now require a call to Run() to start monitoring. This is necessary in order to correctly report if any of the monitored services are initializing.

This release is not backwards-compatible.

v0.2.0

API Improvements:

• Renames GetState() to GetFullState().
• Introduces a new GetState() that returns only the state value (without the error state), eliminating the need for the if s, _ := x.GetState(); s == nested.Ready { pattern.
• Adds a label parameter to Collection.Add(), so that services in the collection can be referenced.
• Adds the method Collection.Up() to return a map indicating the readiness of all currently monitored services.

v0.1.1

Fixes an issue where collections are not initialized properly.

v0.1.0

Initial release.