What is the best practice for this problem? Is there any batching features built-in?
Sample code:
using (ITransaction transaction = _session.BeginTransaction())
{
_session.Delete("FROM myObject o WHERE o.Id = IN(1,2,...99999)");
transaction.Commit();
}
Thanks in advance.
HQL supports the IN clause, and if you use setParameterList you can even pass in a collection.
var idList = new List<int>() { 5,3,6,7 };
_session.CreateQuery("DELETE MyDataClass o WHERE o.Id IN (:idList)")
.SetParameterList("idList", idList)
.ExecuteUpdate();
Be aware, like mentioned by ddango in a comment, that relationship cascades specified in your objects will not be executed since running an HQL query simply translates to a DB query and does not actually load any entity objects.