I have a huge project with both of ActiveRecord and ActiveResource models. I need to implement logging of user activity with these models and also to log changes of model attributes (save object state
I am currently following a class about Design Patterns and was wondering whether an EventListener is an Observable?
I am using the customer_save_after event in magento, and all is working fine apart from 1 annoying thing - it is always fired twice.
We have a class which manages many queues that store data. I want a user to get notified when new data is added to each of these queues. I\'d like to use the observer pattern using delegate and events
How can I a开发者_运维技巧dd a KVO to the currentPlaybackTime property of a MPMoviePlayer class?You cannot add a KVO to currentPlaybackTime since the property is not explicitly declared as KVO compati
I have a situa开发者_如何学运维tion where I think the Observer pattern would make the most sense to use, but I\'m not sure the best way to implement.
What is the preferred approach to registering observers on an NSManagedObject (since Core Data \"\'owns\' the lifecycle\" of managed objects)?
This is related, but definitely not identical, to this famous SO question: Avoid synchronized(this) in Java?
I\'ve build an observer which listens on the sales_convert_quote_to_order event. The event is triggered and I just want to add a value to an attribute of the order. The attribute is set - as printed i
I know that Observer pattern is not supported in the J2ME as开发者_如何学运维 Observer and Observable are not in the J2ME.
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