paradigms

When I say "direct database connection", I meant to use a JDBC-alike driver to call and run a remote database query within the context of an activity, just like using an SQLite database to store the local parameters. Until I realized that I could barely find any tutorials or documents on the Internet regarding this way of database connection, I thought, regardless of the unstable Wi-Fi/3G network bore by most if not all Android devices, to connect to a database should be done like so. Even in Android SDK, only local database access (a.k.a android.database.sqlite ) is supported intrinsically.

What is the difference between Mixins and Traits? According to Wikipedia , Ruby Modules are sort of like traits. How so? Mixins may contain state, (traditional) traits don't. Mixins use "implicit conflict resolution", traits use "explicit conflict resolution" Mixins depends on linearization, traits are flattened. Lecture about traits ad 1. In mixins you can define instance variables. Traits do not allow this. The state must be provided by composing class (=class using the traits) ad 2. There may be the name conflict. Two mixins ( MA and MB ) or traits ( TA and TB ) define method with the same

I'm trying to understand the concept of "Fat" on models vs "skinny" on controllers and from what I've been discussing I have the following example (this is taken from a freenode discussion): Q: On MVC paradigm, its said Fat models, skinny controllers. I'm here thinking, If I have lots of methods (on controller) that uses just a few abstract methods to CRUD (on model), am I creating a fat controller instead of a model ? Or they say, fat model, refearing in what is returned and not typed ? that's something I've never understood =) Any comments are appreciated! Thanks a lot OBS1: I'm not doing

In my second year of University we were "taught" Haskell, I know almost nothing about it and even less about functional programming. What is functional programming, why and/xor where would I want to use it instead of non-functional programming and am I correct in thinking that C is a non-functional programming language? One key feature in a functional language is the concept of first-class functions. The idea is that you can pass functions as parameters to other functions and return them as values. Functional programming involves writing code that does not change state. The primary reason for

I've read the Wikipedia articles for both procedural programming and functional programming , but I'm still slightly confused. Could someone boil it down to the core? A functional language (ideally) allows you to write a mathematical function, i.e. a function that takes n arguments and returns a value. If the program is executed, this function is logically evaluated as needed. 1 A procedural language, on the other hand, performs a series of sequential steps. (There's a way of transforming sequential logic into functional logic called continuation passing style .) As a consequence, a purely