400315 - Reduce the number of Listener/Observer interfaces

Status: VERIFIED WONTFIX

(Calendar :: Internal Components, defect)

Description

[Richard Klein]

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The number of different listener and observer interfaces should be reduced.  There is a comment in the calICalendar.idl file similar to this.  I could not find a bug already filed though.

Current observer interfaces:
calIAlarmServiceObserver
calIObserver
calICompositeObserver
calICalendarManagerObserver

Current listener interfaces:
calIOperationListener
calIProviderListener
calIGenericOperationListener


Reproducible: Always

Steps to Reproduce:
1.
2.
3.

Comment 1

[Daniel Boelzle [:dbo]]

calIGenericOperationListener is generic and serves for lots small-business observers, but it definitely has drawbacks for larger / more complex observers, because of its inherent type-unsafetiness.

We won't change API just to reduce the set of listener interfaces, but may do so when revisiting an API. Those changes will then be done in the corresponding bugs.