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

SELECT item FROM Item item JOIN item.attributes attr 
    WHERE attr IN (:attrList) GROUP BY item

and then in the Java code:

List attrList = new ArrayList();
attrList.add(..); // add as many attributes as needed
...// create a Query with the above string
query.setParameter("attrList", attrList);