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TieSKey
 Post subject: Cant insert/update an entity
PostPosted: Tue Jan 18, 2011 7:04 pm 
Newbie

Joined: Tue Jan 18, 2011 6:32 pm
Posts: 2
Hi people,
I`ve read the forums for a while but this is my first post so I wanted to greet the community.

I´m using last hibernate version, JPA and MySql 5.1.41 and the problem is as follows:

I have several business classes with their corresponding relationships and they work as they should except for one.

Hibernate its not even making the table for that entity. If I make it manually with the Workbench it still fails to insert or update that entity but I can retrieve the manually inserted data.

The exception is org.hibernate.exception.SQLGrammarException and the complete stack-trace:

Code:
org.hibernate.exception.SQLGrammarException: could not insert: [business.ParsingUnit]
Hibernate:
    insert
    into
        ParsingUnit
        (field,
    order, pattern, rssPattern_id)
values
    (?, ?, ?, ?)
   at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:92)
   at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:66)
   at org.hibernate.id.insert.AbstractReturningDelegate.performInsert(AbstractReturningDelegate.java:64)
   at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:2327)
   at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:2834)
   at org.hibernate.action.EntityIdentityInsertAction.execute(EntityIdentityInsertAction.java:71)
   at org.hibernate.engine.ActionQueue.execute(ActionQueue.java:273)
   at org.hibernate.event.def.AbstractSaveEventListener.performSaveOrReplicate(AbstractSaveEventListener.java:320)
   at org.hibernate.event.def.AbstractSaveEventListener.performSave(AbstractSaveEventListener.java:203)
   at org.hibernate.event.def.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:129)
   at org.hibernate.event.def.DefaultPersistEventListener.entityIsTransient(DefaultPersistEventListener.java:179)
   at org.hibernate.event.def.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:135)
   at org.hibernate.impl.SessionImpl.firePersist(SessionImpl.java:799)
   at org.hibernate.impl.SessionImpl.persist(SessionImpl.java:791)
   at org.hibernate.engine.CascadingAction$8.cascade(CascadingAction.java:329)
   at org.hibernate.engine.Cascade.cascadeToOne(Cascade.java:392)
   at org.hibernate.engine.Cascade.cascadeAssociation(Cascade.java:335)
   at org.hibernate.engine.Cascade.cascadeProperty(Cascade.java:204)
   at org.hibernate.engine.Cascade.cascadeCollectionElements(Cascade.java:425)
   at org.hibernate.engine.Cascade.cascadeCollection(Cascade.java:362)
   at org.hibernate.engine.Cascade.cascadeAssociation(Cascade.java:338)
   at org.hibernate.engine.Cascade.cascadeProperty(Cascade.java:204)
   at org.hibernate.engine.Cascade.cascade(Cascade.java:161)
   at org.hibernate.event.def.AbstractSaveEventListener.cascadeAfterSave(AbstractSaveEventListener.java:475)
   at org.hibernate.event.def.DefaultPersistEventListener.entityIsPersistent(DefaultPersistEventListener.java:159)
   at org.hibernate.event.def.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:132)
   at org.hibernate.event.def.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:61)
   at org.hibernate.impl.SessionImpl.firePersist(SessionImpl.java:808)
   at org.hibernate.impl.SessionImpl.persist(SessionImpl.java:782)
   at org.hibernate.impl.SessionImpl.persist(SessionImpl.java:786)
   at persistence.RssPatternDao.PersistRssPattern(RssPatternDao.java:53)
   at core.RssCaptureGui$3.actionPerformed(RssCaptureGui.java:613)
   at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
   at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)
   at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
   at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
   at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source)
   at java.awt.Component.processMouseEvent(Unknown Source)
   at javax.swing.JComponent.processMouseEvent(Unknown Source)
   at java.awt.Component.processEvent(Unknown Source)
   at java.awt.Container.processEvent(Unknown Source)
   at java.awt.Component.dispatchEventImpl(Unknown Source)
   at java.awt.Container.dispatchEventImpl(Unknown Source)
   at java.awt.Component.dispatchEvent(Unknown Source)
   at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
   at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
   at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
   at java.awt.Container.dispatchEventImpl(Unknown Source)
   at java.awt.Window.dispatchEventImpl(Unknown Source)
   at java.awt.Component.dispatchEvent(Unknown Source)
   at java.awt.EventQueue.dispatchEvent(Unknown Source)
   at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
   at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
   at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
   at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
   at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
   at java.awt.EventDispatchThread.run(Unknown Source)
Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'order, pattern, rssPattern_id) values ('Testing', 1, 'Testing', 10)' at line 1
   at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
   at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
   at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
   at java.lang.reflect.Constructor.newInstance(Unknown Source)
   at com.mysql.jdbc.Util.handleNewInstance(Util.java:409)
   at com.mysql.jdbc.Util.getInstance(Util.java:384)
   at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1054)
   at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3566)
   at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3498)
   at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1959)
   at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2113)
   at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2568)
   at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:2113)
   at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:2409)
   at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:2327)
   at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:2312)
   at org.hibernate.id.IdentityGenerator$GetGeneratedKeysDelegate.executeAndExtract(IdentityGenerator.java:94)
   at org.hibernate.id.insert.AbstractReturningDelegate.performInsert(AbstractReturningDelegate.java:57)
   ... 54 more
org.hibernate.AssertionFailure: null id in business.ParsingUnit entry (don't flush the Session after an exception occurs)
   at org.hibernate.event.def.DefaultFlushEntityEventListener.checkId(DefaultFlushEntityEventListener.java:82)
   at org.hibernate.event.def.DefaultFlushEntityEventListener.getValues(DefaultFlushEntityEventListener.java:190)
   at org.hibernate.event.def.DefaultFlushEntityEventListener.onFlushEntity(DefaultFlushEntityEventListener.java:147)
   at org.hibernate.event.def.AbstractFlushingEventListener.flushEntities(AbstractFlushingEventListener.java:219)
   at org.hibernate.event.def.AbstractFlushingEventListener.flushEverythingToExecutions(AbstractFlushingEventListener.java:99)
   at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:50)
   at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1216)
   at org.hibernate.impl.SessionImpl.managedFlush(SessionImpl.java:383)
   at org.hibernate.transaction.JDBCTransaction.commit(JDBCTransaction.java:133)
   at persistence.RssPatternDao.PersistRssPattern(RssPatternDao.java:58)
   at core.RssCaptureGui$3.actionPerformed(RssCaptureGui.java:613)
   at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
   at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)
   at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
   at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
   at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source)
   at java.awt.Component.processMouseEvent(Unknown Source)
   at javax.swing.JComponent.processMouseEvent(Unknown Source)
   at java.awt.Component.processEvent(Unknown Source)
   at java.awt.Container.processEvent(Unknown Source)
   at java.awt.Component.dispatchEventImpl(Unknown Source)
   at java.awt.Container.dispatchEventImpl(Unknown Source)
   at java.awt.Component.dispatchEvent(Unknown Source)
   at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
   at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
   at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
   at java.awt.Container.dispatchEventImpl(Unknown Source)
   at java.awt.Window.dispatchEventImpl(Unknown Source)
   at java.awt.Component.dispatchEvent(Unknown Source)
   at java.awt.EventQueue.dispatchEvent(Unknown Source)
   at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
   at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
   at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
   at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
   at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
   at java.awt.EventDispatchThread.run(Unknown Source)


Class code:
Code:
package business;

import java.io.Serializable;

import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.ManyToOne;

@Entity
public class ParsingUnit implements Serializable {

   @Id
   @GeneratedValue(strategy = GenerationType.AUTO)
   private long id;

   private int order;

   private String pattern;

   private String field;

   @ManyToOne
   private RssPattern rssPattern;

......
"Getters and setters"
.......


And the code thats generating the error is:
Code:
..........................
ParsingUnit newParsingUnit = new ParsingUnit();

               try {
                  
                  newParsingUnit.setPattern(txtRegex.getText());
                  newParsingUnit.setField(txtObjectField.getText());
                  newParsingUnit.setOrder(Integer.parseInt(txtOrder.getText()));
                  newParsingUnit.setRssPattern(Core.getInstance().getPattern();
                  Core.getInstance().getPattern().getParsingUnits().add(newParsingUnit);
                  
                  
                  DaoFactory.getRssPatternDao().PersistRssPattern(Core.getInstance().getPattern());
............................


Dao code:
Code:
package persistence;

import java.util.List;

import org.hibernate.HibernateException;

import business.ParsingUnit;

public class ParsingUnitDao {

   private static ParsingUnitDao instance = new ParsingUnitDao();

   private ParsingUnitDao() {

   }

   public static ParsingUnitDao getInstance() {
      return instance;
   }

   public ParsingUnit getParsingUnitById(ParsingUnit obj) {
      .......
   }

   public List<ParsingUnit> getParsingUnits() {
      .......
   }

   public void PersistParsingUnit(ParsingUnit newParsingUnit) {
      HibernateUtil.getSession().beginTransaction();

      try {
         HibernateUtil.getSession().saveOrUpdate(newParsingUnit);
      } catch (HibernateException e) {
         // TODO Auto-generated catch block
         e.printStackTrace();
      } finally {
         HibernateUtil.getSession().getTransaction().commit();
      }

   }

}



The rest of the application is working just fine, even other entities with generated ids. I`ve tried all that came to my mind and searched the web but I´m still missing something... T_T

Thx in advance for any help whit this.
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nordborg
 Post subject: Re: Cant insert/update an entity
PostPosted: Wed Jan 19, 2011 2:46 am 
Expert
Expert

Joined: Wed Mar 03, 2004 6:35 am
Posts: 1240
Location: Lund, Sweden
'order' is a reserved keyword in SQL so if you want to use if as a column name it needs to be quoted. See http://docs.jboss.org/hibernate/core/3. ... dentifiers for instructions how to enabled this.
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TieSKey
 Post subject: Re: Cant insert/update an entity
PostPosted: Wed Jan 19, 2011 12:05 pm 
Newbie

Joined: Tue Jan 18, 2011 6:32 pm
Posts: 2
..... if my db professor saw this..... I`ve dead.......

Thx nordborg.
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