prototype for a composable service

code-interfaces.js

var jobInterface(args) {
  function init(args) {}
  function stateRead(args) {}
  function stateWrite(args) {}
  function JobStart(args) {}
  function JobCancel(args) {}
  function JobRestart(args) {}
  function JobRevert(args) {}
}

var taskInterface(args) {
  function init(args) {}
  function stateRead(args) {}
  function stateWrite(args) {}
  function taskExecute(args) {}
  function taskCancel(args) {}
  function taskRepeat(args) {}
  function taskRevert(args) {}
}

composableService.js

var composableService(args) {
  // internals
  var globals = {};
  globals.stateData = args.stateData||{};
  globals.jobId = args.jobId||null;
  globals.taskId = args.taskId||null;
  globals.maxTTLSeconds = args.maxTTLSeconds||60;
  globals.maxRetries = args.maxRetries||3;
  
  // actions
  function init(args) {...}
  function stateRead(args) {...} 
  function stateWrite(args) {...}
  function execute(args) {...}
  function repeat(args) {...}
  function revert(args) {...}
  function restart(args) {...}
  function cancel(args) {...}
  
  // externals
  var that = {}; 
  that.stateData = globals.stateData;
  that.jobId = globals.jobId;
  that.taskId = globals.taskId;
  that.stateRead = stateRead
  that.stateWrite = stateWrite;
  that.execute = execute;
  that.repeat = repeat;
  that.revert = revert;
  that.restart = restart;
  that.cancel = cancel;
  
  return that;
}