All entries for Thursday 27 April 2006

April 27, 2006

Some more hibernate thingies

Writing about web page

Some more hibernate observations, although I haven't got time to prove via unit tests:

– if you specify an interface="" then the laziness is ignored; it is always lazy (not documented AFAICS)

– if you have final methods/class then regardless of access (field|property) you will get null values. This is because CGLIB cannot subclass/override final classes/methods (well known), but why doesn't hibernate throw an exception?

– if you specify non-lazy for a class, then the class is fully formed, even if it is using CGLIB with final classes/methods irrespective of access (property|field). I suspect in this case CGLIB isn't involved and hibernate is simply instantiating your implementation class and updating the fields via reflection.

– if you specify an outer join in the mapping, laziness will be ignored; it won't be lazy. This of course is intuitive; join makes no sense if it is not lazy.

When I have more time I will unit test all these combinations, but this is a reminder to me do so.

Will I ever understand hibernate completely :)

April 2006

Mo Tu We Th Fr Sa Su
Mar |  Today  | May
               1 2
3 4 5 6 7 8 9
10 11 12 13 14 15 16
17 18 19 20 21 22 23
24 25 26 27 28 29 30

Search this blog



Most recent comments

  • Interesting… While I'm not completely convinced in such microbenchmarks, I'm pretty sure that 1ms = … by Alexander Snaps on this entry
  • Hello. I bought the book yesterday. I was trying to find the source code for chapter 11 and chapter … by Suleman on this entry
  • by live mashup demo on this entry
  • Thanks mate .. This blog was really helpful. by Maaz Hurzuk on this entry
  • Ty. Not directly helpful for my problem, but pointed me in the right direction. You will also get th… by Mike E. on this entry

Blog archive

Not signed in
Sign in

Powered by BlogBuilder