Q ) A custom AEM application contains a service component that needs to access the JCR repository within the activate method. The activate method uses ResourceResolverFactory.getServiceResourceResolver("¦) without specifying a sub service name.

Question

What should be done to make sure the user service mapping for the service component is available?

A. Create a field of type ServiceUserMapped and annotate it with @3214626.
B. Wait for the service ServiceUserMapper via BundleContext.getServiceReference().
C. Create a field of type ServiceUserMapped and annotate it with @3214626 using ReferencePolicy.DYNAMIC.
D. Create a field of type ServiceUserMapper and annotate it with @3214626 using ReferencePolicy.STATIC.

JagarlamudiVe · Accepted Answer

Hi @jakecham Correct Ans isD. Create a field of type ServiceUserMapper and annotate it with @reference using ReferencePolicy.STATIC. The ServiceUserMapper service is a core Apache Sling service and will typically be available before any custom services that depend on it. Thus, the OSGi references to this service should be satisfied with a static reference policy. The @Reference annotation with ReferencePolicy.STATIC is used to inject a reference to the necessary service, in this case, ServiceUserMapper. It means that the reference to the ServiceUserMapper OSGi service will be injected when the component is activated. Thanks,Venkat

Raja_Reddy · Answer

Hi @jakecham The correct answer is: C C. Create a field of type ServiceUserMapped and annotate it with @reference using ReferencePolicy.DYNAMIC.

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