Tom HawtinThomas Hawtin's WeblogFeeping Creaturism: New Fangled Closures vs Updated Local Classes- August 27, 2006 Neal Gafter has weblogged more about the closure proposal (Use cases for closures and Tennent's Correspondence Principle and Returning From a Closure). Function types Function types are an extreme extension to the Java type system. Client code isn't going to use them. Pointless. BTW: To be clear, I'm not suggesting using the most general of interfaces. I don't want to see types of the form interface ThreeArgsAndAReturn<RET, T0, T1, T2> RET runThisMethod(T0 arg0, T1 arg1, T2 args); ...http://www.jroller.com/tackline/entry/feeping_creaturism_new_fangled_closures The Closure proposal- August 23, 2006 I am going to assume you have seen the proposal. Essentially it is a parallel of anonymous inner classes with enhanced functionality. Developer vs library As with properties, the proposal addresses two sides which perhaps should be independent. On the application programmer side, we want to write functions in place with the minimum of effort. Probably the function will be passed to an algorithm method immediately. Terseness of definition is important. On the service provider side, as ever,.http://www.jroller.com/tackline/entry/the_closure_proposal |