[jakartabatch-dev] CDI based job instantiation

[Martijn Dashorst <martijn.dashorst@xxxxxxxxx>]

All,

Not sure if this is the right list, but given my current experience, a batch job has some but not all capabilities of CDI injection at its disposal.

@Named

public class ExampleBatchlet extends AbstractBatchlet {

    @Inject

    private ExampleService service;

    @Override

    public String process() {

        service.doSomething(); // <-- NullPointerException

    }

}

@ApplicationScoped

public class ExampleService {

    public void doSomething() {}

}

This should IMO work, but my Jakarta Batch implementation, jberet, only injects artifacts that are JobContext, StepContext or BatchProperty [1]. 

Now this can be a bug in JBeret, or a bug in the specification, where it doesn't explicitly require full injectability of CDI beans. (The factory also doesn't take into account setter and constructor based injection).

Martijn

[1] https://github.com/jberet/jsr352/blob/master/jberet-core/src/main/java/org/jberet/creation/AbstractArtifactFactory.java#L67

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