Module io.jstach.rainbowgum.scopedkeyvalues.provider

module io.jstach.rainbowgum.scopedkeyvalues.provider

EXPERIMENTAL The RainbowGum-backed io.jstach.rainbowgum.scopedkeyvalues.spi.ScopedKeyValuesProvider for io.jstach.rainbowgum.scopedkeyvalues.ScopedKeyValues - request/task-scoped key values backed by java.lang.ScopedValue instead of ThreadLocal. Simply being on the classpath is enough: this module's ScopedKeyValuesConfigurator registers a LogEventFactory that rainbowgum-slf4j picks up automatically, merging the current scoped key values underneath MDC for every event it builds.

Requires a JVM supporting java.lang.ScopedValue (finalized in JDK 25, JEP 506) - newer than this project's usual baseline, which is why this module alone overrides its own build's Java release. The io.jstach.rainbowgum.scopedkeyvalues API module this implements does not share that requirement.

Packages

Exports

Package	Description
io.jstach.rainbowgum.scopedkeyvalues.provider	The RainbowGum-backed ScopedKeyValuesProvider, using java.lang.ScopedValue for storage, plus the RainbowGumServiceProvider that wires the result into rainbowgum-slf4j.

Services

Provides

Type

Description

RainbowGumServiceProvider

RainbowGum SPI.

ScopedKeyValuesProviderFactory

Service Provider Interface ServiceLoader actually discovers for ScopedKeyValues - a factory rather than the ScopedKeyValuesProvider itself, since a factory method can do things a bare no-arg-constructor ServiceLoader instantiation cannot (validate preconditions, choose between alternate implementations, read configuration, etc) without ScopedKeyValues needing to know anything about how the provider it gets back was actually put together.