/**
 * Vorlage für Klassenaufbau mit Vererbung in Javascript
 * @constructor
 */

/**
 * Define Class ParentClass
 * @constructor
 */
function ParentClass() {

    /**
     * Define Properties
     * @type {string}
     */
    this.ExampleProperty = 'Hello'
}

/**
 * Define A Funktion for Class ParentClass
 * @param sayWhat
 */
ParentClass.prototype.sayHello = function(sayWhat){
    console.log('Method sayHello() from ParentClass');
    console.log(sayWhat);
};


/**
 * Define a ChildClass
 * @constructor
 */
function ChildClass() {

    /**
     * Define Child Property
     * @type {string}
     */
    this.ExampleProperty2 = 'Hello Number 2';

    /**
     * Overwrite Parent Property
     * @type {string}
     */
    this.ExampleProperty = 'say ';

    /**
     * Extend Parent Property
     * @type {string}
     */
    this.ExampleProperty = ChildClass.parent.ExampleProperty + 'Hello World';

}

/**
 * Define Parent for ChildClass for Inherit Methods and Properties
 * @type {ParentClass}
 */
ChildClass.prototype = new ParentClass();

/**
 * Set Parent For Calling Parent Methods form overwritten Methods in Child Class
 * @type {ParentClass}
 */
ChildClass.parent = new ParentClass();

/**
 * Reset Pointer to right Constructor
 * Because Constructor-Pointer is set to ParentClass by Inherit
 * @type {ChildClass}
 */
ChildClass.prototype.constructor = ChildClass;

/**
 * Overwrite Parent Method
 * @param sayWhat
 */
ChildClass.prototype.sayHello = function(sayWhat)
{
    console.log('called Child Method');
    ChildClass.parent.sayHello(sayWhat);
};



/**
 * Create a Instance of ParentClass
 * @type {ParentClass}
 */
var parent = new ParentClass();
// Call a Function
parent.sayHello('Hello');

console.log('ExampleProperty of ParentClass');
console.log(parent.ExampleProperty);

/**
 * Create a Instance of ChildClass
 * @type {ChildClass}
 */
var  child = new ChildClass();
// Call the same Function with other Params
child.sayHello('Say What?');

console.log('ExampleProperty of ChildClass');
console.log(child.ExampleProperty);

console.log('ExampleProperty2 of ChildClass');
console.log(child.ExampleProperty2);