Extensions | Advisable

A Trait to add AOP advices into Classes/Objects. The methods around, after and before are available on host classes or objects.

###Install

$ npm install cocktail-trait-advisable --save

Usage

Define a class with advisable trait:

MyClass.js


var cocktail = require('cocktail'),
    advisable = require('cocktail-trait-advisable');

cocktail.mix({
    '@exports': module,
    '@as'     : 'class',

    '@traits' : [advisable],

    aMethod: function () {
        console.log('a method is called!');
    }
});

And then use it on your index.js

index.js


var MyClass = require('./MyClass');



var obj = new MyClass();

function afterFn() { console.log('this will be called after!'); }

// #1 attach the after advice
obj.after('aMethod', afterFn);


// #2 call the adviced method
obj.aMethod();

On #1 we attached the advice for after calling aMethod method in our obj. Then when #2 is executed the console output will show:


node index.js
a method is called
this will be called after!

Check the Github Repository for this extension.