troubleshooting Question

Hibernate. retrieve the size of a query result

Avatar of dportabella
dportabella asked on
Java
6 Comments1 Solution673 ViewsLast Modified:
Hello,

I need to retrieve the size of a query result ***using Hibernate***.

For instance, I would like to know how many rows exists for this query:
String query = "FROM items WHERE group=1"

I tried with this:
+++++++
Session session = sessionFactory.getCurrentSession();
session.beginTransaction();
List list = session.createQuery(query).list();
int size = list.size();
session.getTransaction().commit();
+++++++
However, if there are a lot of items, java throws a java.lang.OutOfMemoryError: Java heap space.

If I use iterator() instead of list(), the Iterator class does not have an equivalent size() method.

What is the easiest way to get the size for a query, using hibernate?


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