rename SegmentInfos.FORMAT_3_1 and improve description in CheckIndex
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Key: LUCENE-3226
URL: https://issues.apache.org/jira/browse/LUCENE-3226
Project: Lucene - Java
Issue Type: Improvement
Affects Versions: 3.2, 3.1
Reporter: Hoss Man
Fix For: 3.3
A 3.2 user recently asked if something was wrong because CheckIndex was
reporting his (newly built) index version as...
{noformat}
Segments file=segments_or numSegments=1 version=FORMAT_3_1 [Lucene 3.1]
{noformat}
It seems like there are two very confusing pieces of information here...
1) the variable name of SegmentInfos.FORMAT_3_1 seems like poor choice. All
other FORMAT_* constants in SegmentInfos are descriptive of the actual change
made, and not specific to the version when they were introduced.
2) whatever the name of the FORMAT_* variable, CheckIndex is labeling it
"Lucene 3.1", which is missleading since that format is alwasy used in 3.2 (and
probably 3.3, etc...).
I suggest:
a) rename FORMAT_3_1 to something like "FORMAT_SEGMENT_RECORDS_VERSION"
b) change CheckIndex so that the label for the "newest" format always ends with
" and later" (ie: "Lucene 3.1 and later") so when we release versions w/o a
format change we don't have to remember to manual list them in CheckIndex.
when we *do* make format changes and update CheckIndex " and later" can be
replaced with " to X.Y" and the new format can be added
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