Re: Data managment
Re: Data managment
- Subject: Re: Data managment
- From: Jens Alfke <email@hidden>
- Date: Mon, 12 Apr 2010 11:05:23 -0700
On Apr 12, 2010, at 10:54 AM, Dru Satori wrote:
One application that can be used standalone, or always on multi-user
or with multiple disconnected users synchronizing data when peered.
Complex? You have no idea. But in the design process, many
decisions had to be made, that meant architecture and
implementation. The end result for me? a client server design that
uses a multi-user capable database engine even when in stand-alone
single user mode. When you start the application, it starts the
embedded database engine. While this is massive overkill for most
implementations, it is still a very real design, IF your project
demands it.
Veering a little off-topic, but have you looked at CouchDB? It's a
very cool persistent data store that works either single-user, multi-
user, or replicated. It's kind of a fancy JSON-based key-value store
with MapReduce based querying, and a fancy sync engine for connecting
multiple instances.
I haven't seen any usage of CouchDB by Mac apps yet, but it's already
been integrated into Ubuntu Linux's desktop as the underlying shared
data store for contacts and calendars and so on — like a combination
of the AddressBook and Calendar frameworks and iSync. This is one of
the few times I've been jealous of Linux's UI. :)
The CouchDB protocol is pretty easy to work with because it's all HTTP/
REST/JSON. You'd mostly just need NSURLRequest and one of the Cocoa
JSON parsers.
—Jens_______________________________________________
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