Sequence

sequence

function sequence(iterator, arrayList) {
	this.iterator = iterator;
	this.sequence = arrayList || [];
}

sequence.prototype.next = function (cb) {
	var self = this;
	if (self.sequence.length == 0){
		return setImmediate(cb, null, null);
	}
	setImmediate(function skip(self) {
		self.iterator.next(function (err, cursor) {
			if (cursor > self.sequence.length) {
				self.iterator.reset(function () {
					skip(self);
				})
			} else {
				cb(null, self.sequence[cursor - 1])
			}
		})
	}, self);
}

module.exports = {
	create: function (iterator, arrayList) {
		return new sequence(iterator, arrayList)
	}
};