Hibernate Criteria列表

Question

Good Day,

I have a Hibernate mapping that looks something like this:

public class Item implements Serializable {
      private lond id;
      private String Name;
      private boolean status;
      ...

}

public class ItemHolder  implements Serializable {
      private long id;
      private List<Item> items;
      ...
}

How can I do query to get all Item Holder's witch contains my Item? (with criteria)

Answer 1

You just need a join:

Criteria c = session.createCriteria(ItemHolder.class, "itemHolder");
c.createAlias("itemHolder.items", "item");
c.add(Restrictions.eq("item.id", theItemId);

Answer 2

Criteria criteria=session.createCriteria(ItemHolder.class);
criteria.createAlias("items", "item"); 
criteria.add(Restrictions.eq("item.Name", "my Item").ignoreCase());

you can restrict with your requirement : id or name..

Answer 3

The query could be something like:

Item loadedItem = ...;
Query query = session.createQuery("from ItemHolder ih where :item in elements(ih.items)");
query.setParameter("item", loadedItem);
List list = query.list();