Allow customization of ConversionService in RepositoryFactorySupport [DATACMNS-1512]

wreulicke opened DATACMNS-1512 and commented

We have library using spring-data-commons, https://github.com/dai0304/spring-data-mirage. 

I would like to use custom collection.

public interface Chunk<T> extends Collection<T> {
  Stream<T> stream();
  // and etc...
}

And Repository using custom collection is below.

public interface ChunkableRepository<E, ID extends Serializable>extends ReadableRepository<E, ID> {
    Chunk<E> findAll();
}

In 2.0.9.RELEASE, it works.

but, in 2.1.6.RELEASE, it does not work due to DATACMNS-1482, since element type conversion introduced.

Also, we cannot customize conversionService of QueryExecutionResultHandler.

Ref: 

• QueryExecutionResultHandler 2.0.9
• QueryExecutionResultHandler 2.1.6 
• QueryExecutionResultHandler master

Referenced from: pull request https://github.com/spring-projects/spring-data-commons/pull/391