Re: Hierarchal Archiving

FROM : Don Murta
DATE : Tue Jan 28 22:57:55 2003

   Take your custom class and implement the initWithCoder (so you can
load) and encodeWithCoder so you can save, then both the archiving
methods will work, and I would assume the dictionary would work as well
since the type knows how to write and read itself.  See the NSCoding
protocol and specifically the encoding and decoding of c data types (i
assume your arrays of arrays are not NSArrays), of the Archives and
Serializations section.  With 2+d arrays it might be simpler to convert
them to a 1d array, write a vector lookup function, and use that in
place of a multi-dimensional array, but that all depends on what your
doing.
   Definitely read the Cocoa Developer Documentation >  Data Management >
Archives and Serializations section of the Foundation docs though.

hope that helps.
don

On Tuesday, January 28, 2003, at 11:21 AM, The Amazing Llama wrote:
> I am programming a document that needs to save it's data to disk, like
> any good document.
>
> The data in question is a dictionary whose keys are names (NSStrings)
> and whose objects are a custom class I have coded, whose instances
> store arrays of arrays of numbers. How do I write this to disk? The
> options I know of are:


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