js-key-value-storage-objects

js-object-key-value-stored.js

universal_getter = function(id, prop_name, cb) {
  // get it from db or some data set 
  // if fails set erro to `new Error()`
  // 
  // if storage is locked wait till it gets unlocked
  // 
  // goGetItFromDB(prop_name, function(err, val) {
       return cb(err, val);
  // })
}

universal_setter = function(id, prop_name, val) {
  // Lock storage
  // 
  // goPutItIntoDB(prop_name, val, function(err, val) {
  //   
  //   Unlock storage
  // 
  // })
}

var user = {};

Object.defineProperty(user, 'id', {
  enumerable: true,
  configurable: false, // No need to fiddle around with it
  value: 123
})

Object.defineProperty(user, 'name', {
  enumerable: true;
  configurable: true;
  get: function() {
    var self = this;
    return function(cb) {
      universal_getter(self.id, 'name', cb);
    }
  },
  set: function(val) {
    universal_setter(this.id, 'name', val);
  }
})

var name = user.name;

name(function(err, name) {
  console.log(name);
})

// OR 
// if you are into promises and stuff
// 
// implying there was email defined the same way

var nodefn = require('when/node');

var name = nodefn.lift(user.name);
var email = nodefn.lift(user.email);

when.join(name, email).then(function(vals){
  console.log('name is %s, and email is %s', vals[0], vals[1]);
})