Looking for an HQL builder (Hibernate Query Language)

Question

I\'m looking for a builder for HQL in Java. I want to get rid of things like:

StringBuilder builder = new StringBuilder()
    .append(\"select stock from \")
            


        

Answer 1

@Sébastien Rocca-Serra

select stock
from com.something.Stock as stock, com.something.Bonus as bonus
where stock.bonus.id = bonus.id

That's just a join. Hibernate does it automatically, if and only if you've got the mapping between Stock and Bonus setup and if bonus is a property of Stock. Criteria.list() will return Stock objects and you just call stock.getBonus().

Note, if you want to do anything like

select stock
from com.something.Stock as stock
where stock.bonus.value > 1000000

You need to use Criteria.createAlias(). It'd be something like

session.createCriteria(Stock.class).createAlias("bonus", "b")
   .add(Restrictions.gt("b.value", 1000000)).list()