code: @Reference(cardinality = ReferenceCardinality.OPTIONAL, policy = ReferencePolicy.DYNAMIC, policyOption = ReferencePolicyOption.GREEDY)
      protected void setCDIBatchArtifactFactory(CDIBatchArtifactFactory preferredArtifactFactory) {
          this.cdiBatchArtifactFactory = preferredArtifactFactory;
      }
docs: DS injection.