Open DI

Open DI (ODI) is a CDI Lite implementation backed by Micronaut's compile-time dependency injection runtime.

ODI targets CDI Lite rather than the CDI Full runtime extension, decorator, and passivation surface. The implementation uses Micronaut bean definitions, annotation processing, generated proxies, and build-compatible extensions to provide CDI APIs on top of a Micronaut-backed runtime.

The ODI guide is published at https://eclipse-ee4j.github.io/odi/guide/.

The CDI Lite TCK passes with CDI Full exclusions only.

The latest CDI Lite TCK compatibility evidence is published at https://eclipse-ee4j.github.io/odi/tck-results/latest/. Each CI run is also retained under its immutable workflow run ID, for example /tck-results/<workflow-run-id>/.

Micronaut Core dependency

ODI currently requires unmerged Micronaut Core changes from micronaut-projects/micronaut-core#12678. That PR adds the CDI integration hooks used by the ODI processor and runtime.

The Gradle build includes that Micronaut Core branch by default. settings.gradle.kts uses the me.champeau.includegit plugin to include https://github.com/micronaut-projects/micronaut-core.git at branch cdi-5.1.x as an included build named micronaut-core, then substitutes the required io.micronaut:* modules with projects from that included build.

For local development, you can point the build at a local Micronaut Core checkout by setting local.git.odi.micronaut-core in ~/.gradle/gradle.properties or by setting LOCAL_GIT_MICRONAUT_CORE. If no local checkout is configured, the git include is used. To disable the included Micronaut Core build entirely, run with -Podi.include.micronaut.core=false.

Classpath shape

Keep the ODI processor on the annotation processor path and keep the CDI runtime on the application classpath:

dependencies {
    annotationProcessor("org.eclipse.odi:micronaut-odi-processor-cdi:<version>")

    implementation("org.eclipse.odi:micronaut-odi-cdi:<version>")
    implementation("jakarta.enterprise:jakarta.enterprise.cdi-api:4.1.0")
}

Useful commands

./gradlew :docs-examples:cdi-lite-java:test
./gradlew :micronaut-odi-tck-runner:test
./gradlew publishGuide