Hello,

I would like to build up a criteria with following conditions
- some variables must be checked whether it is null or not.
- query must be criteria

the outcome must be look like this:
(fieldname1 == var1)
and (if var2 != null (fieldname2 == var2)
and if var3 != null (fieldname3 == var3)
and if var4 != null (fieldname4 == var4) )
or (fieldname5 == null)

I don't know the way how can I add the middle part with checking null.

Thanks ahead.

Csaba