[PR] [OPENJPA-2973] Consult the AttributeConverter for null values [openjpa]

["rzo1 (via GitHub)" <gi...@apache.org>]

rzo1 opened a new pull request, #201:
URL: https://github.com/apache/openjpa/pull/201

   As required by Jakarta Persistence 3.2 an `AttributeConverter` is now consulted for `null` in both directions; previously a null attribute or a null column value bypassed it, so a converter mapping `null` to a column default was never applied. Queries are deliberately unaffected: a `null` in a query still means SQL `NULL` and is never passed through the converter, so `IS NULL` and null parameters keep their previous meaning. Converter implementations must therefore be null-safe — the bundled test converters were not and are fixed — and the migration guide documents both the requirement and the change in stored data; the CDI and direct-cast questions from the review are answered in comments, since the kernel has neither a container hook nor the `jakarta.persistence` dependency.


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Re: [PR] [OPENJPA-2973] Consult the AttributeConverter for null values [openjpa]

["cristof (via GitHub)" <gi...@apache.org>]

cristof merged PR #201:
URL: https://github.com/apache/openjpa/pull/201


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