This week's book giveaway is in the OO, Patterns, UML and Refactoring forum.
We're giving away four copies of Refactoring for Software Design Smells: Managing Technical Debt and have Girish Suryanarayana, Ganesh Samarthyam & Tushar Sharma on-line!
See this thread for details.
The moose likes Object Relational Mapping and the fly likes Hibernate named query to execute sproc on sql server NPE Big Moose Saloon
  Search | Java FAQ | Recent Topics | Flagged Topics | Hot Topics | Zero Replies
Register / Login


JavaRanch » Java Forums » Databases » Object Relational Mapping
Bookmark "Hibernate named query to execute sproc on sql server NPE" Watch "Hibernate named query to execute sproc on sql server NPE" New topic
Author

Hibernate named query to execute sproc on sql server NPE

Pranav Sharma
Ranch Hand

Joined: Oct 27, 2003
Posts: 258
Hi
I'm trying to execute a sql server stored procedure via hibernate named query. However get the exception below when I do query.list(). Other sprocs are executed similarly and work just fine. THanks

java.lang.NullPointerException
at org.hibernate.loader.custom.CustomLoader$Metadata.<init>(CustomLoader.java:544)
at org.hibernate.loader.custom.CustomLoader.autoDiscoverTypes(CustomLoader.java:517)
at org.hibernate.loader.Loader.getResultSet(Loader.java:1817)
at org.hibernate.loader.Loader.doQuery(Loader.java:697)
at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:259)
at org.hibernate.loader.Loader.doList(Loader.java:2228)
at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2125)
at org.hibernate.loader.Loader.list(Loader.java:2120)
at org.hibernate.loader.custom.CustomLoader.list(CustomLoader.java:312)
at org.hibernate.impl.SessionImpl.listCustomQuery(SessionImpl.java:1722)
at org.hibernate.impl.AbstractSessionImpl.list(AbstractSessionImpl.java:165)
at org.hibernate.impl.SQLQueryImpl.list(SQLQueryImpl.java:175)
Pranav Sharma
Ranch Hand

Joined: Oct 27, 2003
Posts: 258
I also tried this:

sql-query name="sprocName" callable="true">
<return-scalar column="newId" type="integer"/>
...


Returned a 1 as constant in the sproc.

and did a query.uniqueResult()

and now I get this

Unhandled exception
java.lang.NullPointerException
at org.hibernate.loader.Loader.doQuery(Loader.java:720)
at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:259)
at org.hibernate.loader.Loader.doList(Loader.java:2228)
at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2125)
at org.hibernate.loader.Loader.list(Loader.java:2120)
at org.hibernate.loader.custom.CustomLoader.list(CustomLoader.java:312)
at org.hibernate.impl.SessionImpl.listCustomQuery(SessionImpl.java:1722)
at org.hibernate.impl.AbstractSessionImpl.list(AbstractSessionImpl.java:165)
at org.hibernate.impl.SQLQueryImpl.list(SQLQueryImpl.java:175)
at org.hibernate.impl.AbstractQueryImpl.uniqueResult(AbstractQueryImpl.java:835)

 
I’ve looked at a lot of different solutions, and in my humble opinion Aspose is the way to go. Here’s the link: http://aspose.com
 
subject: Hibernate named query to execute sproc on sql server NPE
 
It's not a secret anymore!