Revision history for Perl extension Class::Observable.

1.04 Sat Oct 16 11:53:03 EDT 2004

• Ensure that coderef and object observers are added as weak references so we don't have leaks. Add Scalar::Util as dependency.
• Add 'observer_log()' and 'observer_error()' as overridable logging/error methods.

1.03 Wed Jun 16 19:45:18 EDT 2004

Fixed typo in Observable.pm, thanks to Dan Langille.

1.02 Tue Nov 11 23:50:33 EST 2003

• Rename 'delete_observers' to 'delete_all_observers' (preserving old name for compatibility)
• add_observer() and delete_observer() take one or more observers now. Previously they only took one. 100% compatible with old version.

1.01 Wed Oct 22 08:30:14 EDT 2003

Fix tiny POD bug (thanks to forehead@4red.org for spotting).

1.00 Fri May 2 09:58:57 EDT 2003

• Add copy_observers() so you can copy observers from one observed item to another.
• We're stable enough to be a version 1.x!

0.03 Mon Aug 19 23:02:13 EDT 2002

• Be able to turn debugging on and off programmatically via SET_DEBUG()
• Allow any number of paramters sent via notify_observers(). (This is Perl, after all...). This is a very small API change and fully backward compatible.

0.02 Tue May 28 09:25:12 EDT 2002

• Modified API to be more like java.util.Observable:

          remove_observer( $o )  -> delete_observer( $o )
          remove_all_observers() -> delete_observers()
                                 -> count_observers()

        Updated docs and tests accordingly.

0.01 Sun May 26 14:02:30 EDT 2002

Initial version -- it's got tests! It's got documentation!