setContinueCallback(callback, context, parameters) {
    if (callback == null) {
      this.resetContinueCallback();
    } else {
      this._continueCallback = callback;
      this._continueContext = context;
      this._continueParameters = parameters;
    }
  }
Sets a callback to fire when continue occurs.
@param {Function} callback
@param {*} [context=this]
@param {Array} [parameters=null]