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From Martin van den Bemt <mll...@mvdb.net>
Subject Re: [DDLUTILS-85] How to tackle the issue?
Date Tue, 06 Aug 2013 14:15:13 GMT
HI Bruno,

Maybe I created the wrong expectation. My last commit to this codebase
was in 2006 based on an older API, so it is not so easy to advise on
this level of detail.

The main things I would keep in mind is :

- Stay backwards compatible with the API
- Keep in mind that everything shoudl be "generic". So roundtrip from
xml -> oracle -> xml export -> derby -> xml export should preferrably
end up with the same xml.
- The base platform implementation contains the things generic for a
majority of db's.
- Make your changes one platform at a time. (so eg if you are doing
Derby you should forst start in DerbyPlatofrm to override the specific
processChange method, or if it needs to be more detailed, the
DerbySqlBuilder)
- Make a test for you scenario. It is pretty complicated (and less
enjoyable) to do that afterwards. Make sure you roundtripping works,
so you know you get consistant results.

At least that would be my approach.

Another mail will follow about the current project status, so probably
wait for that discussion to open up...

Mvgr,
Martin


2013/8/1 Bruno Tavares <btavare@thoughtworks.com>:
> Sure!
>
> Taking a look on the codebase I understood a bit of the flow.
> Maybe we can do some changes on the PlatformImplBase#processChange for
> the AddIndexChange objects to also create the unique constraint on the
> databases that support contraints.
>
> What do you think about that?
>
> On Wed, Jul 31, 2013 at 11:13:03PM +0200, Martin van den Bemt wrote:
>> Hi Bruno,
>>
>> Could you give me a couple of more days to get (re) organized with DDLUtils  ?
>>
>> Mvgr,
>> Martin
>>
>> 2013/7/30 Bruno Tavares <btavare@thoughtworks.com>:
>> > Hi there everyone,
>> >
>> > There is an interest to work on something related to the DDLUTILS-85
>> > issue on my current project.
>> >
>> > I would like to ask if there is any ideas on how you would approach the
>> > issue.
>> > Also, is there any standards or requirements on the code to
>> > submit patches?
>> >
>> > Cheers,
>> > --
>> > Bruno Tavares
>> >
>
> --
> Bruno Tavares
> Consultant Developer

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