Hibernate version: 3.1

Could anyone tell me which entity identity (JVM object identity, database identity or equals method identity?) is used while hibernate checks if entity is in second level cache?

thx
Tomasz Lewandowski

Hope someone will correct if I'm wrong, but I'd definitely expect it to be equals method identity.

Erik

after a while of thinking :) i worked it out that hibernate must check database identity because it doesn't have any other information about entity
thx
Tomasz Lewandowski

Though you may be right in the conclusion, I don't agree that Hibernate as no other information about entity - the equals method exists for every object, so Hibernate could (and in my opinion does) use it.

To find out try to define an equals method that doesn't fit database identity and see what's happening.

Erik

For second level caching it uses the id values. The objects themselves are not put into the cache; the object is "disassembled" and that disassembled state is what is put into second level cache.