This week's book giveaway is in the Server-Side JavaScript and NodeJS forum.
We're giving away four copies of Node.js Design Patterns: Design and implement production-grade Node.js applications using proven patterns and techniques and have Mario Casciaro & Luciano Mammino on-line!
See this thread for details.
Win a copy of Node.js Design Patterns: Design and implement production-grade Node.js applications using proven patterns and techniques this week in the Server-Side JavaScript and NodeJS forum!
  • Post Reply Bookmark Topic Watch Topic
  • New Topic
programming forums Java Mobile Certification Databases Caching Books Engineering Micro Controllers OS Languages Paradigms IDEs Build Tools Frameworks Application Servers Open Source This Site Careers Other Pie Elite all forums
this forum made possible by our volunteer staff, including ...
Marshals:
  • Campbell Ritchie
  • Ron McLeod
  • Rob Spoor
  • Tim Cooke
  • Junilu Lacar
Sheriffs:
  • Henry Wong
  • Liutauras Vilda
  • Jeanne Boyarsky
Saloon Keepers:
  • Jesse Silverman
  • Tim Holloway
  • Stephan van Hulst
  • Tim Moores
  • Carey Brown
Bartenders:
  • Al Hobbs
  • Mikalai Zaikin
  • Piet Souris

Null pointer exception in HQL using parameter

 
Ranch Hand
Posts: 257
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
the code is
public class DeleteHQLExample {
/**
* @author vinod Kumar
*
* http://www.roseindia.net Hibernate
Criteria Query Example
*
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
Session sess = null;
try {
SessionFactory fact = new
Configuration().configure().buildSessionFactory();
sess = fact.openSession();
Transaction tx = sess.beginTransaction();
String hql = "delete from Insurance where lngInsuranceId =:lngInsuranceId";
Query query = sess.createQuery(hql).setInteger("lngInsuranceId", 1);
int row = query.executeUpate();
tx.commit();
if (row == 0){
System.out.println("Doesn't deleted any row!");
}
else{
System.out.println("Deleted Row: " + row);
}
sess.close();
}
catch(Exception e){
e.printStackTrace();
}
}
}

and the exception is
java.lang.NullPointerException
at org.hibernate.hql.antlr.HqlSqlBaseWalker.path(HqlSqlBaseWalker.java:2193)
at org.hibernate.hql.antlr.HqlSqlBaseWalker.fromElement(HqlSqlBaseWalker.java:2281)
at org.hibernate.hql.antlr.HqlSqlBaseWalker.fromElementList(HqlSqlBaseWalker.java:2232)
at org.hibernate.hql.antlr.HqlSqlBaseWalker.fromClause(HqlSqlBaseWalker.java:498)
at org.hibernate.hql.antlr.HqlSqlBaseWalker.deleteStatement(HqlSqlBaseWalker.java:276)
at org.hibernate.hql.antlr.HqlSqlBaseWalker.statement(HqlSqlBaseWalker.java:156)
at org.hibernate.hql.ast.QueryTranslatorImpl.analyze(QueryTranslatorImpl.java:189)
at org.hibernate.hql.ast.QueryTranslatorImpl.doCompile(QueryTranslatorImpl.java:130)
at org.hibernate.hql.ast.QueryTranslatorImpl.compile(QueryTranslatorImpl.java:83)
at org.hibernate.impl.SessionFactoryImpl.getQuery(SessionFactoryImpl.java:414)
at org.hibernate.impl.SessionImpl.getQueries(SessionImpl.java:814)
at org.hibernate.impl.SessionImpl.executeUpdate(SessionImpl.java:801)
at org.hibernate.impl.QueryImpl.executeUpate(QueryImpl.java:89)
at roseindia.tutorial.hibernate.DeleteHQLExample.main(DeleteHQLExample.java:27)

what is the problem? the class Insurance has a property named lngInsuranceId
 
peter tong
Ranch Hand
Posts: 257
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
I have update the hibernate3.jar, and the exception now become:
Exception in thread "main" java.lang.NoClassDefFoundError: org/slf4j/LoggerFactory
at org.hibernate.cfg.Configuration.<clinit>(Configuration.java:151)
at roseindia.tutorial.hibernate.DeleteHQLExample.main(DeleteHQLExample.java:22)
Caused by: java.lang.ClassNotFoundException: org.slf4j.LoggerFactory
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClassInternal(Unknown Source)
... 2 more
anyone know what happens?
 
peter tong
Ranch Hand
Posts: 257
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
anyone can kindly help me? I really can't think any solution!!
 
Sheriff
Posts: 67592
173
Mac Mac OS X IntelliJ IDE jQuery TypeScript Java iOS
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Please read this, and please read this.
 
peter tong
Ranch Hand
Posts: 257
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
I find the solution finally
update the latest hibernate3.jar, then
Add slf4j-api-1.5.3.jar
 
You showed up just in time for the waffles! And this tiny ad:
Building a Better World in your Backyard by Paul Wheaton and Shawn Klassen-Koop
https://coderanch.com/wiki/718759/books/Building-World-Backyard-Paul-Wheaton
reply
    Bookmark Topic Watch Topic
  • New Topic