Draft: feat(format): schema evolution for the Java row codec#3714

Draft

stevenschlansker wants to merge 36 commits into

apache:mainfrom

stevenschlansker:row-codec-schema-versions

Commits on Jun 26, 2026

feat(format): schema evolution for the Java row codec
Claude (on behalf of Steven Schlansker)
committed
perf(format): one allocation per encode in evolution-enabled array/map codecs
Claude (on behalf of Steven Schlansker)
committed
test(format): add row-format allocation probe
Claude (on behalf of Steven Schlansker)
committed
feat(format): dispatch nested versioned beans by recursive strict hash
Claude (on behalf of Steven Schlansker)
committed
fix(format): route inner-bean version through array/map projection codecs
Claude (on behalf of Steven Schlansker)
committed
test(format): cover producer/consumer flag asymmetry on array and map codecs
Claude (on behalf of Steven Schlansker)
committed
fix(format): prefer all-current combination when SchemaHistory signatures collapse
Claude (on behalf of Steven Schlansker)
committed
test(format): cover @ForyVersion on record components
Claude (on behalf of Steven Schlansker)
committed
docs(format): clarify wire format and cross-product growth
Claude (on behalf of Steven Schlansker)
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docs(format): tighten row-format schema-evolution prose
Claude (on behalf of Steven Schlansker)
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fix(format): harden evolution decode and address review feedback
Claude (on behalf of Steven Schlansker)
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test(format): add JMH schema-evolution benchmark suite
Claude (on behalf of Steven Schlansker)
committed
style(format): apply spotless to row schema-evolution sources
Claude (on behalf of Steven Schlansker)
committed
fix(format): route nested versioned beans by schema identity, enumerate per class
Claude (on behalf of Steven Schlansker)
committed
fix(format): harden row decode and trim allocations on the projection path
Claude (on behalf of Steven Schlansker)
committed
fix(format): log array/map codec generation time in the unit it reports
Claude (on behalf of Steven Schlansker)
committed
perf(format): benchmark schema-evolution flag overhead on the current path
Claude (on behalf of Steven Schlansker)
committed
fix(format): gate version-history bean probe behind isBean
Claude (on behalf of Steven Schlansker)
committed
fix(format): keep inferField overloads contiguous to satisfy checkstyle
Claude (on behalf of Steven Schlansker)
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fix(format): enumerate versioned beans nested inside collection fields
Claude (on behalf of Steven Schlansker)
committed
fix(format): drop RECORD_COMPONENT from @ForyVersion target for Java 11 safety
Claude (on behalf of Steven Schlansker)
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fix(format): reject finite @ForyVersion(until) on a live field
Claude (on behalf of Steven Schlansker)
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fix(format): stop enumerating map keys in versioned-bean cross-product
Claude (on behalf of Steven Schlansker)
committed
refactor(format): carry resolved schema in factory instead of mutating builder
Claude (on behalf of Steven Schlansker)
committed
perf(format): precompute projection RowFactory once at build time
Claude (on behalf of Steven Schlansker)
committed
test(format): add disabled reproducer for map struct-key value-evolution bug
Claude (on behalf of Steven Schlansker)
committed
fix(format): decode map struct keys at current schema during value projection
Claude (on behalf of Steven Schlansker)
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fix(format): evolve top-level array/map whose element/value wraps a versioned bean
Claude (on behalf of Steven Schlansker)
committed
refactor(format): drop unreachable live-field since/until check
Claude (on behalf of Steven Schlansker)
committed
docs(format): note strict-hash dispatch is a 64-bit collision boundary
Claude (on behalf of Steven Schlansker)
committed
test(format): cover added reference and collection field defaults on row evolution
Claude (on behalf of Steven Schlansker)
committed

Commits on Jun 27, 2026

fix(format): support interface beans as map values and discover them when nested in evolving beans
Claude (on behalf of Steven Schlansker)
committed
docs(format): point bean-codec missing-registration error at registerBeanCodec()
Claude (on behalf of Steven Schlansker)
committed
fix(format): throw for non-accessor methods colliding with absent projection fields
Claude (on behalf of Steven Schlansker)
committed
fix(format): warn on large projection cross-product and clarify decode framing
Claude (on behalf of Steven Schlansker)
committed
fix(format): reject @ForyVersion(since) below the first schema version
Claude (on behalf of Steven Schlansker)
committed