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From Paul Merlin <paulmer...@apache.org>
Subject Re: New persistence format
Date Sat, 13 May 2017 15:04:04 GMT
Niclas Hedhman a écrit :
> I am looking at the new persistence format, and made an observation that I
> never did before, probably too long ago the exact format was of interest or
> was never there...
> All the changes that are written out, all receives the same "version".
> Which means that the (in theory) people can audit what changes were grouped
> together. Now, since history is overwritten, this is lost, but eventually
> that should be fixed, and keeping all history should be optional, in which
> case full transparency is possible.
> Now, the "UseCase" that triggered the change is not captured, but it should
> be quite easy to add such feature, simply storing UseCase name, time,
> metainfo (if any) and "version" as a separate entity. I think such thing
> could be made simply by adding a SideEffect on the EntityStore and we
> should perhaps provide that as standard feature. Because, with metainfo on
> Usecases, that could in capture REST API paths and arguments, incl the
> person logged in. I.e. getting loads of audit for very little effort.
> Just saying...
> Cheers

Or a side effect on UoW that creates the entity holding the UseCase and
its meta-info for the UoW. That could be added in 3.1.

But for the full effect one needs historical data ... or event sourcing
.. mmm

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