Hibernate query for multiple items in a collection

Question

I have a data model that looks something like this:

public class Item {
    private List attributes;
    // other stuff
}

public class Item         


        

Answer 1

I didn't test it, but this is how I should try to solve your problem if I would have to:

Map map1 = new TreeMap();  
map1.put("ia.name","foo1");  
map1.put("ia.value","bar1");  
Map map2 = new TreeMap();  
map2.put("ia.name","foo2");  
map2.put("ia.value","bar2");  
return getSession().createCriteria(Item.class)
.createAlias("itemAttributes", "ia")
.add(Restrictions.and()
     .add(Restrictions.allEq(map1))
     .add(Restrictions.allEq(map2))
)
.list();

Please, let me know if it worked. I think the same should work with or()...