I am trying to use observers in my rails app to create a new entry in my \"Events\" Model every time a new \"Comment\" is saved. The comments are saving fine, but the observer is not creating events p
This problem is pretty common: an object should notify all its subscribers when some event occurs. In C++ we may use boost::signals or something else. But how to do this in Go language? It would be ni
Typically, in Java, when I\'ve got an object who\'s providing some sort of notification to other objects, I\'ll employ the Listener/Observer pattern.
I have different custom map annotations on my MKMapView, and when creating the custom view I add an observer and disable the default popup.
I\'m working on a website where I sell products (one class Sale, one class Product). Whenever I sell a product, I want to save that action in a History table and I have decided to use the observer pat
I have a custom tree data class, following the standard Composite pattern. I obviously don\'t want the GUI and the model to be too closely tied, so the GUI should be an Observer of the model, and chan
I need to extend a class (in C++, but this question is language-agnostic I think), with functionality that can be implemented in two different ways:
I\'m interested in the value change of a particular key which I keep in NSUserdefaults. However, what I have is not working for me. observeValueForKeyPath does not get triggered.
i need some practical examples of cases when i could use the observer pattern when developing a website.. (using php)
I wanted 开发者_C百科to find out other ways to do Asynchronous Observer Pattern without using Message Queue. Ideas and examples are mostly welcomed. :-) (Think of this as a brainstorming session).
加载中,请稍侯......