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From Thomas Mueller <muel...@adobe.com>
Subject Re: AW: AW: AW: AW: Incremental/deduplicating versioning
Date Wed, 13 Jul 2011 12:25:04 GMT

>This is not possible.

Well, it is.

> The DataStore is called from Jackrabbit (addRecord) with some stream and
>has absolutely no idea what the original file was.

It doesn't need to know.

>So it can't determine the concrete diff.

It's always possible to create a concrete diff between two files. The
question is: how large is the diff.

> Sure it can look for similar files (performance?)

There are various algorithms on how to search efficiently, depending on
the requirement (performance, memory, compression ratio).

>but that is maybe not the diff to the previous file from application view.

Why would you want the diff from the application view?


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