Re: Qualifier With Primary Key
Re: Qualifier With Primary Key
- Subject: Re: Qualifier With Primary Key
- From: Jesse Tayler <email@hidden>
- Date: Fri, 19 Aug 2011 13:13:44 -0400
oh, ya, I hadn't seen that class but the idea is similar.
I guess because I was using the app not database, I put in an instance number or something about the host/port or something.
this brings me to my next question --
how about those modern looking bit.ly type id's ?
seems like you can take the key or counter value and mod your way through a set of characters and build up a super-short id - no?
I have ERRest doing my work right now, but I'll be wanting to email URLs to the web app and figured I'd prefer not to show id's but rather could use a counter like bit.ly urls and I haven't yet looked into that.
Thoughts? Ideas? Suggestions?
On Aug 19, 2011, at 1:04 PM, Travis Britt wrote:
> You're close to a real uuid at that point. The common problem is multiple instance coordination, can be a lot easier just to have the DB assign a unique value since you're probably coordinating there anyway. But it all depends on your app, your db, your scaling characteristics, how many potential collisions you're willing to risk….
>
> http://download.oracle.com/javase/1.5.0/docs/api/java/util/UUID.html
>
> tb
>
> On Aug 19, 2011, at 12:14 PM, Jesse Tayler wrote:
>
>> Hi Travis-
>>
>> Is it impractical?
>>
>> I've used a simple date+rand constructor and ran it through an encoding to HEX to get a 'random' object id and had no troubles with that. I suppose it has limits to uniqueness in theory but it was quick to generate.
>>
>> I was also about to start looking for something more short, like bit.ly urls ? More like a mod-counter with a nice set of case-sensitive characters.
>>
>> I was just about to ask if someone know's of a good slice of code or method to do just that so I could adopt something more modern?
>>
>> I figured for certain WO URLs it might be clean and won't expose id ordering in a URL so I'd write an apache rule or two and use an object-id like the die above? Not smart?
>>
>> On Aug 19, 2011, at 8:15 AM, Travis Britt wrote:
>>
>>> Unless you're generating a true guid that's impractical to do in a general way at the app level.
>>>
>>> tb
>>>
>>> On Aug 19, 2011, at 8:03 AM, Kevin Hinkson wrote:
>>>> This should be a common issue then. So I'm surprised there isn't some kind of slug generator that handles ensuring uniqueness in Wonder. (or is there?)
>>>
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