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Re: Hierarchal Archiving
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Re: Hierarchal Archiving


  • Subject: Re: Hierarchal Archiving
  • From: Don Murta <email@hidden>
  • Date: Tue, 28 Jan 2003 14:57:55 -0700

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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References: 
 >Hierarchal Archiving (From: The Amazing Llama <email@hidden>)

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