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 firstname.lastname@example.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!