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Re: [Json] [apps-discuss] merge-patch in APPSA and i-json in JSON

Larry Masinter <masinter@adobe.com> Thu, 10 July 2014 17:47 UTC

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From: Larry Masinter <masinter@adobe.com>
To: Paul Hoffman <paul.hoffman@vpnc.org>
Thread-Topic: [apps-discuss] [Json] merge-patch in APPSA and i-json in JSON
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Date: Thu, 10 Jul 2014 17:47:39 +0000
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Cc: "apps-discuss@ietf.org" <apps-discuss@ietf.org>, "json@ietf.org" <json@ietf.org>
Subject: Re: [Json] [apps-discuss] merge-patch in APPSA and i-json in JSON
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> RFC 7159. Might you instead suggest better wording for what you think
> we should say about what the MergePatch operation works on?

Here's an attempt:
===
  The MergePatch operation is defined to operate at an object level,
not a textual level. There is no expectation that the MergePatch operation 
will preserve  textual representation-level features such as white space, 
member ordering, number precision beyond what is available in the
target's implementation, and so forth. 
 
In addition, even if the target implementation allows multiple name/value pairs
with the same name, the result of the patch operation on such
objects is not defined.
===

You could instead say that patch changes one of the values, all of
the values, or consolidates them, nailing it down in the spirit of
interoperability.

I also think it would be advisable to disallow duplicate names
in application/merge-patch+json, but that requiring the other
features of I-json is unnecessary.

Larry
--
http://larry.masinter.net

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