@Getter
@Setter
@ToString
@Entity
@Table(name = "TVSource")
public class MyTelevisionSource {
    @Id
    private Long SourceId;

    @Column(columnDefinition = "nvarchar2 (2000)")
    private String LongName;

    @Column(columnDefinition = "nvarchar2 (2000)")
    private String DisplayName;

    @OneToOne(fetch=FetchType.LAZY)
    @JoinColumn(name = "SourceId")
    private RCMSource rcmSource;

}


@Getter
@Setter
@ToString
@Entity
@Table(name = "Source")
public class RCMSource {

    @Id
    private Long SourceId;

    @Column(columnDefinition = "nvarchar2 (2000)")
    private String SourceName;

}


@Service
public class TelevisionSourceService {

    @Autowired
    private TelevisionSourceRepository televisionSourceRepo;

    public List<MyTelevisionSource> getTelevisionSource(){

        Pageable pageable = PageRequest.of(0, 10);
        Page<MyTelevisionSource> tvSource =  televisionSourceRepo.findAll(pageable);

        System.out.println(tvSource.getContent());

        return tvSource.getContent();
}


public interface TelevisionSourceRepository extends JpaRepository<MyTelevisionSource, Long> {

    Page<MyTelevisionSource> findAll(Pageable pageable);

}