How to stream data to database BLOB using Hibernate (no in-memory storing in byte[])

Question

I\'m looking for a way to stream binary data to/from database. If possible, i\'d like it to be done with Hibernate (in database agnostic way). All solutions I\'ve found invo

Answer 1

Your solution using Hibernate's lobHelper should work, but you may need to make sure that the use of streams is enforced. Set property hibernate.jdbc.use_streams_for_binary = true This is a system-level property, so it has to be set at startup (I defined it on the command line during testing:

java -Dhibernate.jdbc.use_streams_for_binary=true blobTest

You can prove it's changed in your code:

Object prop = props.get("hibernate.jdbc.use_streams_for_binary");
System.out.println("hibernate.jdbc.use_streams_for_binary" + "/" + prop);