I had some questions about NewValueHolder and I figured, why not revive COTDC?!
The current comment is: "A NewValueHolder is a new implementation of ValueHolder based on Announcements". Of course, ValueHolder doesn't have a class comment. Wikipedia claims a value holder is "a generic object that handles the lazy loading behavior, and appears in place of the object's data fields" [1]. So: - what is a NewValueHolder? - is the "Value Holder" part of the name accurate in light of [1]. Obviously repurposing a term people may already be familiar with is a bad idea. In fact the important part here seems not the holding of the value, but the notification of changes. It seems more like an event in FRP. How about ReactiveVariable or AnnouncingVariable, since it combines the storage of a variable with announcing of changes? I like Reactive a bit better because those familiar with FRP will get the idea that it's notifying dependents, Announcing maybe begs the question "announcing what?" - should it replace ValueHolder, which is used only by ExclusiveWeakMessageSend and WidgetExamples [1] http://en.wikipedia.org/wiki/Lazy_loading p.s. [OT] valueChanged: oldValue to: newValue seems fishy. It is only used in one place in the image in this weird way "pickedItemsHolder valueChanged: true to: item" ----- Cheers, Sean -- View this message in context: http://forum.world.st/COTDC-108-NewValueHolder-tp4738066.html Sent from the Pharo Smalltalk Developers mailing list archive at Nabble.com.
