Sunday, April 8, 2012

ActionListener^Action

javadoc on Action.java says

Note that Action implementations tend to be more expensive in terms of *storage* than a typical ActionListener implementation class, which does not offer the benefits of centralized control of functionality and *broadcast of property changes*. For this reason, you should take care to only use Actions where their benefits are desired, and use simple ActionListeners elsewhere.

I feel ActionListener objects are typically stateless. I feel they are pure functor objects. The word "Action" in "ActionListener" means very much like the generic "Event". However, the word "Action" in Action.java seems to mean something else, such as the Control in Microsoft lingo.

Anyway, i feel the word "Action" is ambiguous and overloaded. Let's avoid it but do understand its various meanings.

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