I want to use Micronaut from a Groovy script. It seems that annotations such as @Inject and @PostConstruct are not processed.
Here is the code I tried:
#!/usr/bin/env nix-shell
#!nix-shell -i groovy
@Grapes([
@Grab('ch.qos.logback:logback-classic'),
@Grab('io.micronaut:micronaut-runtime')
])
package org.sdf // NPE without package
import io.micronaut.runtime.Micronaut
import javax.inject.*
import javax.annotation.*
@Singleton
class Component {
}
@Singleton
class App implements Runnable {
@Inject
Component comp
@Override
@PostConstruct
public void run() {
// Never runs
assert this.comp != null
assert false
}
}
static void main(String... args) {
Micronaut.run(App, args);
}
It doesn't run post-construct method and logs this:
22:17:43.669 [main] DEBUG i.m.context.DefaultBeanContext - Resolved bean candidates [] for type: interface io.micronaut.runtime.EmbeddedApplication
22:17:43.671 [main] INFO io.micronaut.runtime.Micronaut - No embedded container found. Running as CLI application
How can I use Micronaut with dependency injection in a single-file Groovy script?