SampleConfig.java

@Configuration
public class SampleConfig<T> {
  
  @Bean
  public Service<T> service(){
    return new Service<T>(repo());
  }
  
  @Bean
  public Repository<T> repo(){
    return new Repository<T>();
  }
}

SomeOtherCode.java

public class Foo{
  
  public void someMethod(){
    someSpringObject.addConfiguration( new SampleConfig<User>() );
    someSpringObject.addConfiguration( new SampleConfig<Organization>() );
  }
}