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| = Mixins versus Interfaces=
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| == Concepts to explore==
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| == Definition==
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| === Multiple Inheritance===
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| Multiple inheritance is a feature of some object-oriented computer programming languages in which a class can inherit behaviors and features from more than one superclass.
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| (From Wikipedia, http://en.wikipedia.org/wiki/Multiple_inheritance)
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|
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| === Interfaces in Java===
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| http://download.oracle.com/javase/tutorial/java/concepts/interface.html
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|
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| === Modules in Ruby===
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| Modules in Ruby are a way to group together methods, classes and constants. They are similar to namespaces in languages such as C++. (From lecture 6 note)
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| === Mixin using Modules===
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| The most interesting use of modules is to define mixins. When you include a module within a class, all its functionality becomes available to the class. Not only can modules contain class methods; they can also contain instance methods. (From lecture 6 note)
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|
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| = Advantage and Disadvantage =
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| == Mixin==
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| === Mixin Advantage===
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| === Mixin Disadvantage===
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| == Interfact==
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| === Interface Advantage===
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| === Interface Disadvantage===
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| = Examples=
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| == Comparable==
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| === Ruby Implementation===
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| === Java Implementation===
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|
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| == Singleton==
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| === Ruby Implementation===
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| === Java Implementation===
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| <pre>
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| public class Singleton {
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| private static final Singleton instance = new Singleton();
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|
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| /**
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| Private constructor prevents instantiation from other classes
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| **/
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| private Singleton() {
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| }
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|
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| public static Singleton getInstance() {
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| return instance;
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| }
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| }
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| </pre>
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| == Enumerable==
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| === Ruby Implementation===
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| === Java Implementation===
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| == DataMapper==
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|
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| === Ruby Implementation===
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| === Java Implementation===
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| = Uniqueness=
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| == Mixin Only Use Cases==
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| == Interface Only Use Cases==
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| = Reference =
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