What is the correct way to implement the OSGi service class for this interface?
public interface SimpleService {
String getMessage();
}
A)
@Component(service = SimpleService.class, immediate = true)
public class SimpleServiceImpl extends SimpleService {
@Override
public String getMessage() {
return "Hello from SimpleService!";
}
}
B)
@Component(service = MySimpleService.class, immediate = true)
public class SimpleServiceImpl implements SimpleService {
@Override
public String getMessage() {
}
}
C)
@Component(service = MySimpleService.class, immediate = true)
public class SimpleServiceImpl implements SimpleService {
@Override
public String getMessage() {
return "Hello from SimpleService!";
}
}
D)
@Component(service = SimpleService.class, immediate = true)
public class SimpleServiceImpl implements SimpleService {
@Override
public String getMessage() {
return "Hello from SimpleService!";
}
}