Re: @VersionColumns usage

[Craig L Russell]

I'm not clear on the use case for multiple version columns. Does anyone have an example of where it is useful?

Craig

On Aug 25, 2008, at 7:58 AM, Pinaki Poddar wrote:

Hi,

multiple numeric columns.

the version values poses some open questions.

column values) is as follows:
 if (compare(v1[i], v2[i]) = x for all i then return x

x
 otherwise return 1.

A bit heuristic but am ready to listen to other ideas.

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A recent commit on OPENJPA-697 upgrades the version column strategy for A simple test case is available in the commit set as demonstration of usage. When a version value is represented as multiple column values, comparison of Currently, the comparison of v1 and v2 (when v1 and v2 are array of version if (compare(v1[i], v2[i]) = x for some i and 0 for all other i then return

Craig L Russell
Architect, Sun Java Enterprise System http://java.sun.com/products/jdo
408 276-5638 mailto:[EMAIL PROTECTED]
P.S. A good JDO? O, Gasp!

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