Support entity references [DATAJDBC-112]

[spring-projects-issues]

Jens Schauder opened DATAJDBC-112 and commented

If an entity references another entity the referenced entity should get persisted with the original entity.

So:

 LegoSet set = new LegoSet("Awesome Truck");
 set.setManual(new Manual("Just plug everything together"));

 repository.save(set)

should result in two inserts. One into the table LegoSet, the other into the table Manual

---

Referenced from: pull request #9

[spring-projects-issues]

Jens Schauder commented

The PR contains changes not only for this issue but also for DATAJDBC-104 and DATAJDBC-114