cognitect / cognitect/transit-java
It is not possible to override the default java.util.Map handler
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- Dominant language
- Java
- Stars
- 65
- Forks
- 23
- PR merge metrics
- No merged PRs in 30d
Description
In Clojure code:
(get
(TransitFactory/writeHandlerMap {java.util.Map "foo bar"})
java.util.Map)
yields the default map handler unchanged instead of an exception (which happens for java.util.List). This behavior worked with transit-clj 0.8.285. I have been using this for https://github.com/replikativ/incognito/ to serialize all unknown record types as special maps including tag information. Unfortunately the default-handler does not cover this case, because it is only triggered if the thing is unknown, while records are treated as maps by default.
Contributor guide
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First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start at TransitFactory.writeHandlerMap and compare how java.util.Map and java.util.List handlers are resolved. Reproduce the Clojure example, then verify that supplying a java.util.Map handler returns the supplied handler rather than the default, while existing List behavior remains unchanged.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- clojure, java
- Domain
- backend
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 45/100