This is my current project structure:
pom.xml
/src
/main
/resources
hibernate.cfg.xml
/META-INF
persistence.xml
I have very similar configuration params in both files (hibernate.cfg.xml and persistence.xml), which looks strange, but this is what I saw in many online examples and tutorials. I can't understand why do I need to have two files. Is it possible to work just with one? Please explain.
ps. For example, should I declare hibernate.dialect in both files, or just one will be enough? If so, which one to use?