Re: Sort Algorithm Question
Re: Sort Algorithm Question
- Subject: Re: Sort Algorithm Question
- From: Chuck Hill <email@hidden>
- Date: Wed, 23 Feb 2005 12:50:46 -0800
On Feb 23, 2005, at 12:31 PM, James Cicenia wrote:
If one needs to have more than one comparison does one need to
subclass the main class for each compareTo ??
I can't understand what you mean.
Believe it or not I have never used these before... and I don't quite
understand the difference or benefit between the
generic Java vs. NSComparator.
NSArray works with NSComparator. The API is slightly different. Both
work.
Chuck
On Feb 23, 2005, at 1:03 PM, Chuck Hill wrote:
You want this as part of a fetch? I think you will need to work with
DB specific collation sequences.
You want to do this in-memory?
com.webobjects.foundation.NSComparator is your friend!
Chuck
On Feb 23, 2005, at 10:58 AM, James Cicenia wrote:
Hello -
I would like to do a sort with a primary and secondary sort both
ascending, HOWEVER,
I want the primary sort which is comprised of dates to have the
nulls sorted towards the bottom.
Here is an example
AAAA Date 1
AAAA Date 2
BBBB Date 1
BBBB ----------
CCCC Date 3
CCCC Date 4
CCCC ---------
Any thoughts on the most efficient means to do this?
- James Cicenia
--
Practical WebObjects - a book for intermediate WebObjects developers
who want to increase their overall knowledge of WebObjects, or those
who are trying to solve specific application development problems.
http://www.global-village.net/products/practical_webobjects
--
Practical WebObjects - a book for intermediate WebObjects developers
who want to increase their overall knowledge of WebObjects, or those
who are trying to solve specific application development problems.
http://www.global-village.net/products/practical_webobjects
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