How to customize MappingMongoConverter (setMapKeyDotReplacement) in Spring-Boot without breaking the auto-configuration? : <p>How could I customize the <a href="http://docs.spring.io/spring-data/data-mongo/docs/current/api/org/springframework/data/mongodb/core/convert/MappingMongoConverter.html" rel="noreferrer"><code>MappingMongoConverter</code></a> within my Spring-Boot-Application (1.3.2.RELEASE) without changing any of the mongo-stuff which is autoconfigured by spring-data?</p>

<p>My current solution is:</p>

<pre class="lang-java prettyprint-override"><code>@Configuration
public class MongoConfig {

  @Autowired
  private MongoDbFactory mongoFactory;

  @Autowired
  private MongoMappingContext mongoMappingContext;

  @Bean
  public MappingMongoConverter mongoConverter() throws Exception {
    DbRefResolver dbRefResolver = new DefaultDbRefResolver(mongoFactory);
    MappingMongoConverter mongoConverter = new MappingMongoConverter(dbRefResolver, mongoMappingContext);
    //this is my customization
    mongoConverter.setMapKeyDotReplacement("_");
    mongoConverter.afterPropertiesSet();
    return mongoConverter;
  }
}
</code></pre>

<p>Is this the right way or do I break some stuff with this?<br>
Or is there even a more simple way to set the mapKeyDotReplacement?</p>
