I am not aware of any such adapter.
But even if it were, it's still much simpler to use a single annotation, right?
You can retain all the HBM mappings, you just have to remove the summary property definition from HBM and annotate the summary property with @Lob on the entity class.
HBM are considered deprecated, so if you plan on migrating to Hibernate 5, you should migrate to annotations as well.
If you check the
Hibernate 5 deprecation list, it's stated that:
Quote:
hbm.xml is a legacy mapping format now considered deprecated.