I'm wondering how the Hibernate function Restrictions.allEq(Map<String, Object> ...) treats null values inside input Map (if as multiple Restrictions.eq(String, Object) or Restrictions.eqOrIsNull(String, Object)) or whatelse).
After a quick search from Google, I couldn't find anything specific from Hibernate documentation, and only a source says that Restrictions.allEq(...) is equivalent to multiple Restrictions.eq(String, Object) (see here).
I'm not sure that is the correct answer, so I'm asking here.
Thank you all in advance
After downloading sources of Hibernate (4.3.6.Final), and a little inspection, I've finally found the answer: Restrictions.allEq(Map<String, Object>) is translated as a bunch of Restrictions.eq(String, Object) and consequently a null value is remapped as the String "null" (which may be or may be not the correct translation, based on the specific application).
In my case, I needed to use multiple Restrictions.eqOrIsNull(String, Object) to correctly manage my input Map<String, Object>.
I hope this question will be useful to someone else.