the big downside of JPA is in my opinion the JPQL… normaly it is pretty, pretty,pretty good… when only doing simple stuff. As soon as it get complex, where i first try it in SQL and then rewrite it in JPQL it gets bad… as long as no error has occured, it didnt output the from-JPQL-rendered-SQL… and i actually tried to debug it, tried to access it in java… but didnt tried to change the config…
<property name=”eclipselink.logging.level.sql” value=”FINE” />
<property name=”eclipselink.logging.parameters” value=”true” />
these two lines enable the logging of SQL… … bah…