// namespace
var Person = {};

/** @constructor */
Person.Base = Class.create({
    /** @var */
    name: '',

    /** @override */
    init: function (name) {
        // configure
        this.name = name;
    },

    /** @final */
    getName: function () {
        return this.name;
    },

    sayName: function () {
        // abstract
    }
});

/** 
 * @constructor 
 * @extends Person.Base
 */
Person.Woman = Class.create(Person.Base, {
    /** @override */
    init: function (name) {
        // call parent constructor
        this.super(name + ' (' + Person.Woman.TYPE + ')');
    },

    /** @override */
    sayName: function () {
        alert('My name is ' + this.getName() + '.');
    }
}, {
    // static property
    TYPE: 'woman'
});

/** 
 * @constructor 
 * @extends Person.Base
 */
Person.Man = Class.create(Person.Base, {
    /** @override */
    init: function (name) {
        // call parent constructor
        this.super(name + ' (' + Person.Man.TYPE + ')');
    },

    /** @override */
    sayName: function () {
        alert('My name is ' + this.getName() + '. I like rock music.');
    }
}, {
    // static property
    TYPE: 'man'
});

var john = new Person.Man('John');
john.sayName();

var aline = new Person.Woman('Aline');
aline.sayName();