File APIs for Java Developers
Manipulate DOC, XLS, PPT, PDF and many others from your application.
The moose likes Object Relational Mapping and the fly likes Big Moose Saloon
  Search | Java FAQ | Recent Topics | Flagged Topics | Hot Topics | Zero Replies
Register / Login

Win a copy of Make it so: Java DB Connections & Transactions this week in the JDBC forum!
JavaRanch » Java Forums » Databases » Object Relational Mapping
Bookmark ""select new Constructor" in HQL" Watch ""select new Constructor" in HQL" New topic

"select new Constructor" in HQL

nimo frey
Ranch Hand

Joined: Jun 28, 2008
Posts: 580
I have a strange failure:

I have a constructor with fullfills this:

(intValueA, intValueB are Integers)

this works.

This works, too:

But when I use the sum-aggregation:

this failure occurs:

My Constructor:

Why does my Constructor not work, when I use the SUM-Aggregation???
nimo frey
Ranch Hand

Joined: Jun 28, 2008
Posts: 580
Okay, solved.

The datatypes were wrong. I have used Integer instead of Long.
I agree. Here's the link:
subject: "select new Constructor" in HQL
It's not a secret anymore!