[OPENJPA-2983] Resolve EXTRACT temporal fields by constant, not by name - #166
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[OPENJPA-2983] Resolve EXTRACT temporal fields by constant, not by name#166rzo1 wants to merge 1 commit into
rzo1 wants to merge 1 commit into
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CriteriaBuilderImpl.extract() derived the DateTimeExtractField from field.toString().toUpperCase(), which depends on the default locale and on the textual representation the specification constants happen to use. Map the LocalDateField / LocalTimeField / LocalDateTimeField constants to their DateTimeExtractField equivalents by identity instead, and reject any other temporal field with a meaningful message instead of letting Enum.valueOf fail. TestExtractTemporalField pins every entry of the new mapping table, which is where the risk now sits: it is a characterisation test of the 16 hand written pairs, not a reproduction of the original defect, since the name based lookup produced the same result for all constants once Locale.ROOT was passed.
cristof
approved these changes
Aug 29, 2026
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CriteriaBuilderImpl.extract()derived theDateTimeExtractFieldfromfield.toString().toUpperCase(...).Locale.ROOTon master closed the Turkish-locale hole, but the lookup still depended on the exact wording of the spec constants, and an unrecognised field failed withEnum.valueOf's "No enum constant ..." rather than anything actionable.The
LocalDateField/LocalTimeField/LocalDateTimeFieldconstants are now mapped to theirDateTimeExtractFieldequivalents by identity, and anything else is rejected with a meaningful message. Identity is safe: the three classes have a single private constructor, are notSerializable, and expose no factory.No behaviour change for working queries —
LocalDateTimeField.DATE/TIMEalready threwIllegalArgumentException(theirtoString()is lowercase, sovalueOfnever matched) and still do, with a better message.