Re: [ANN] QuickLite 1.5.4 is now available
Re: [ANN] QuickLite 1.5.4 is now available
- Subject: Re: [ANN] QuickLite 1.5.4 is now available
- From: Chris Hanson <email@hidden>
- Date: Wed, 22 Jun 2005 22:19:47 -0700
On Jun 22, 2005, at 12:29 AM, irieblue wrote:
My limited understanding of CoreData/XCode is that you have a cool UI
based tool to describe your tables and relationships, and the you
generate some code which can be bound to a data base engine of your
choosing.
Core Data is an object graph management and persistence framework.
With Core Data, you create a model describing your data in terms of
entities and their properties, including their relationships to other
entities. (You can create this model using the Xcode design tools,
or you can write code to generate it at run-time.) Then you work
with graphs of interconnected objects using the Core Data API, which
manages your interaction with your object graph. This lets Core Data
provide features like automatic change tracking including undo and
redo support, and demand-fetching portions of your object graph as
you access them via relationships.
You can create custom classes to represent instances of your
entities, and the Xcode design tools can even generate skeletons of
these custom classes. (You would do this if you want to put custom
logic in an entity.) But these classes work with Core Data, they
don't work with arbitrary data storage or database access frameworks.
-- Chris
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