JSDM
Domain development , DDD-CRS framework for node.js and browser’s component/component framework .
Node.js Install
npm install jsdm
Component Install
component install brighthas/jsdm
domain mean?
domain is a black box , outside operate must use domain.exec function.
domain inside include Aggre, EventHandle, Service and CommandHandle.
domain.exec ---> command handle ---> serivce / Aggre object (generate events) ---> event handle
step 1. define Aggre
// User.js
module.exports = {
name:"User",
init:function(data,callback){
var err = null;
var mydata = {
name:data.name
}
callback(err,mydata);
},
proto:{
updateName:function(args,my){
var name = args.name;
my.data("name",name);
my.publish("updateName",{name:name});
}
}
}
step 2. define command handle
// commandHandles.js
module.exports = [{
name: "create a user",
handle: function(args, callback, my) {
var User = my.getAgg("User");
User.create({name: args.name},function(err,user){});
}
},
{
name: "update user name",
handle: function(args, callback, my) {
var User = my.getAgg("User");
User.get(args.userId,function(user){
user.updateName({name:args.name});
})
}
}]
step 3. database interface
// jsdm core only need 'get' function, from database get obj data , the data is json.
// testdb.js
module.exports = {
_dbs = {
User:{
'id001':{name:'brighthas'}
}
},
// typename is aggre type name, example 'User'.
get:function(typename,id,callback){
if(this._dbs[typename] && this._dbs[typename][id]){
callback(null,this._dbs[typename][id]);
}else{
callback(null);
}
}
}
step 4. create domain and run
var domain = require("jsdm")(),
User = require("./User"),
commandHandles = require("./commandHandles"),
db = require("./testdb");
domain.bindAgg(User)
.bindCommandHandle(commandHandles[0])
.bindCommandHandle(commandHandles[1])
//.bindService(service)
//.listen(eventName,handle)
//.listenOnce(eventName,handle)
//.seal()
.on("User.*.updateName",function(event){
console.log(event.data.name);
});
domain.exec("update user name",{userId:"id001",name:"leo"},function(){});
// execute result is : leo
