Re: Searchable persistent file reference
Re: Searchable persistent file reference
- Subject: Re: Searchable persistent file reference
- From: "Gary L. Wade" <email@hidden>
- Date: Wed, 10 Dec 2008 11:00:09 -0700
- Thread-topic: Searchable persistent file reference
An alias stores quite a bit of information in it to allow you to find a file
object (files, folder, disks) if it moves or is renamed or if any of the
elements of its path is renamed, and can usually work with varied file
systems. I am not familiar with BSAlias or NDAlias, but if they provide a
good wrapper around the CoreServices AliasHandle and associated functions,
they would be a good place for a high-level solution.
On 12/10/2008 6:59 AM, "Ben" <email@hidden> wrote:
> Hi list,
>
> I am trying to store a reference to a file in a database, such that if
> the file moves, I can still search for it in my database.
> I have read up on the Carbon Alias Manager and the third party BSAlias/
> NDAlias classes but none of these quite seem to fit the bill as it
> looks like I am working backwards from their designed use. ie, rather
> than finding the file from a database record, I want to lookup the
> database record from a known file.
>
> In this situation, would it be best to use -[NSFileManager
> attributesOfItemAtPath:error:] and store the NSFileSystemFileNumber?
> I'm not sure how resilient this approach is. Or is there something
> that I have missed completely?
>
> Regards,
>
> Ben
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