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Creating a dictionary who's objects are also linked or indexed?

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Creating a dictionary who's objects are also linked or indexed?

Subject: Creating a dictionary who's objects are also linked or indexed?
From: Phil <email@hidden>
Date: Sat, 12 Aug 2006 15:00:17 -0400

I'm curious if there is a better Cocoa solution than I've found to the following problem: I often have a list of items (strings, numbers, or dates) where I know the values of the first and last items and need to iterate over the inclusive set of items that fall between the first and last items. I can accomplish this by effectively implementing the lookup capability of a dictionary in an object contained in an array or by adding an index to an object in a dictionary. It can also be handled using Core Data which seems a lot like using a sledgehammer to swat a fly.

For example, I have a list of names and want to enumerate over the set of items from a given item to a given item. My code determines that "Ball" is the first value of interest and "Smith" is the last value, and given these, I need to return the inclusive set of items that fall between (simple alpha comparison) these values in the parent set.

It seems like a fairly common problem and am wondering if Cocoa provides a simpler solution that I'm not seeing? _______________________________________________ Do not post admin requests to the list. They will be ignored. Cocoa-dev mailing list (email@hidden) Help/Unsubscribe/Update your Subscription: This email sent to email@hidden Follow-Ups: Re: Creating a dictionary who's objects are also linked or indexed? From: Aaron Jacobs <email@hidden> Prev by Date: Re: Unified toolbar going blank Next by Date: Re: Unified toolbar going blank Previous by thread: Re: Unified toolbar going blank Next by thread: Re: Creating a dictionary who's objects are also linked or indexed? Index(es): Date Thread