In hibernate how to use not in clause

Question

i am having two table

jobs and production

production table has jobid field which refers jobid of jobs table.

In hibernate how to use not in clause

Answer 1

I think the not exist keyword is a good choice.

Suppose I have a table called "giraffe", with id as primary key, and another table called "engineer" with a column called "giraffe" which refers to the "giraffe" table as foreign key, then the following HQL query worked for me:

from Giraffe giraffe where not exists (from Engineer as engineer where engineer.giraffe = giraffe.id )

Answer 2

You can use HQL:

List<Job> jobs = session.createQuery(
        "from Job where id not in (select jobId from Production)"
    ).list();