Optimize BSON codec lookup. by vbabanin · Pull Request #1632

Optimize BSON codec lookup. by vbabanin · Pull Request #1632 · mongodb/mongo-java-driver

- Use `BsonTypeCodecMap` for decoding in `BsonArray` to enable faster access.
- Optimize `BsonTypeClassMap` by replacing `Map` with a plain array to eliminate redundant hash computations.

JAVA-5339

self-assigned this

Feb 18, 2025

vbabanin changed the title ~~Optimize BSON Array decoding.~~ Optimize BSON codec lookup.

Feb 19, 2025

vbabanin marked this pull request as ready for review

February 20, 2025 07:46

Using ordinal() ties the mapping to enum declaration order, which risks subtle bugs in the future.

JAVA-5339

…nArrayCodecBenchmark.java

Co-authored-by: Ross Lawley <ross.lawley@gmail.com>

…nDocumentBenchmark.java

Co-authored-by: Ross Lawley <ross.lawley@gmail.com>

…nDocumentBenchmark.java

Co-authored-by: Ross Lawley <ross.lawley@gmail.com>

…nArrayCodecBenchmark.java

Co-authored-by: Ross Lawley <ross.lawley@gmail.com>

…nUtils.java

Co-authored-by: Ross Lawley <ross.lawley@gmail.com>

…nUtils.java

Co-authored-by: Ross Lawley <ross.lawley@gmail.com>