var myFramework = FrameworkFactory.create({
    name: "myFramework",
    version: "1.0.0"
});

myFramework.Person = myFramework.Class({
 
    //An attribute called firstName with default value first-name.
    firstName: myFramework.attribute("first-name"),
 
    //An attribute called lastName with default value last-name.
    lastName: myFramework.attribute("last-name"),
 
    //A readonly field fullName which returns fullName. Readonly fields
    //can not be changed directly.
    fullName: myFramework.readonly({
        get: function () {
            return this.firstName + " " + this.lastName;
        }
    }),
 
    //Represents an event which is fired when person starts working.
    start: myFrmaework.event();
 
    //Person starts working
    work: function () {
        this.trigger("start");
    }
 
});
 

myFramework.Employee = myFramework.Person.extend({
 
    department: myFramework.readonly(),
 
    //Define employeeCode property which sets the department
    //info based on its value.
    employeeCode: myFramework.property({
        get: function () {
            return this._employeeCode;
        },
        set: function(v) {
            if (v !== this._employeeCode) {
                this._employeeCode = v;
                if (employeeCode < 100) {
                    this._department = "Sales";
                }
                else {
                    this._department = "Marketing";
                }
 
                //Load other properties like firstName, lastName etc from database.
            }
        }
    }),
 
    //Constructor function, initializes the new instance of
    //myFramework.Employee
    init: function (employeeCode) {
 
        if (employeeCode) {
            //Initialize an existing employee
            this.employeeCode = employeeCode;
        }
        else {
            throw new Error("Invalid employeeCode");
        }
    },
 
    //Employee starts working.
    work: fuction() {
        console.log("Employee started working.");
 
        //Call base class' work function, which will fire "start" event.
        this.base();
    }
 
});
 

var p1 = new myFramework.Person();
p1.firstName = "Peter";
p1.lastName = "Parker";
console.log(p1.fullName); //Prints Peter Parker
 
p1.fullName = "Peter Thompson"; //Can't set read-only properties
 
var e1 = new myFramework.Employee(10);
console.log(e1.employeeCode); //Prints 10
console.log(e1.department); //Prints Sales
console.log(e1 instanceof Employee) //Prints true
console.log(e1 instanceof Person) //Prints true
console.log(e1.fullName); //Prints the fullName loaded from the database.