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evossler
 Post subject: hbm2ddl bombs on <mapping> element in my hibernate.cfg
PostPosted: Mon Jul 24, 2006 2:50 pm 
Newbie

Joined: Mon Jul 24, 2006 2:23 pm
Posts: 3
Hi all, and thanks in advance to anyone who can clear up my confusion. In my hibernate.cfg.xml file, I have a mapping element that gives the .hbm.xml file for my persistant object, User. However, with this element in the hibernate.cfg.xml file, hbm2ddl throws an exception on it, claiming it cannot find the mapping resource. If I comment that line out, hbm2ddl runs fine, but of course my application does not, as hibernate no longer has a mapping file for the persistant object.

I know I must be doing something wrong if I have to use different versions of hibernate.cfg.xml for generating the schema vs. running the app.

Can anyone tell me what I'm missing? All relevant files are below.

Eric

Hibernate version: 3.1.3

Mapping documents:

hibernate.cfg.xml:
Code:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-configuration PUBLIC
      "-//Hibernate/Hibernate Configuration DTD 3.0//EN"
      "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
    <session-factory>
        <property name="hibernate.connection.driver_class">org.apache.derby.jdbc.EmbeddedDriver</property>
        <property name="hibernate.connection.url">jdbc:derby:testdb</property>
        <property name="hibernate.dialect">org.hibernate.dialect.DerbyDialect</property>
        <!-- Enable Hibernate's automatic session
         context management -->
        <property name="current_session_context_class">thread</property>

        <!-- Echo all executed SQL to stdout -->
        <property name="show_sql">true</property>   
       
      <mapping resource="src/com/pearson/mtx/datamodel/User.hbm.xml"/>
           
    </session-factory>
</hibernate-configuration>


User.hbm.xml

Code:
<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC
        "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
        "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">

<hibernate-mapping>

   <class name="com.company.product.datamodel.User" table="users">
   
      <id name="id" type="long">
         <generator class="native" />
      </id>
      
      <property name="login" type="string" unique="true" not-null="true"/>
      <property name="password" type="string" />

      <many-to-one name="createdBy" class="com.company.product.datamodel.User" />
      <many-to-one name="lastModifiedBy"  class="com.company.product.datamodel.User"/>
      <property name="creationDate" type="timestamp" />
      <property name="modifiedDate" type="timestamp" />

      <property name="admin" type="boolean" />
      <property name="expiredPassword" type="boolean" />

      <property name="savedPaymentInfo" type="boolean" />
      <property name="CCExpirationMonth" type="string" />
      <property name="CCExpirationYear" type="string" />
      <property name="CCHolderName" type="string" />
      <property name="CCNumber" type="string" />
      <property name="CCType" type="string" />
      <property name="mirageEmailAddress" type="string" />
      <property name="mirageFirstName" type="string" />
      <property name="mirageLastName" type="string" />
      <property name="mirageMiddleInitial" type="string" />
      <property name="mirageMTxUserNumber" type="string" />
      <property name="miragePhoneNumber" type="string" />
      <property name="miragePhoneExtension" type="string" />
   
   </class>

</hibernate-mapping>


build.xml
Code:
<project name="prototypes" default="makeschema" basedir=".">

   <path id="toolslib">
    <path location="./lib/hibernate-tools.jar" />
    <path location="./lib/hibernate3.jar" />
    <path location="./lib/freemarker.jar" />
    <path location="./lib/xml-apis.jar" />
    <path location="./lib/antlr-2.7.6rc1.jar" />
    <path location="./lib/asm.jar" />
    <path location="./lib/cglib-2.1.3.jar" />
    <path location="./lib/commons-collections-2.1.1.jar" />
    <path location="./lib/commons-logging-1.0.4.jar" />
    <path location="./lib/dom4j-1.6.1.jar" />
    <path location="./lib/ehcache-1.1.jar" />
    <path location="./lib/jdbc2_0-stdext.jar" />
    <path location="./lib/jta.jar" />
    <path location="./lib/log4j-1.2.11.jar" />
    <path location="./lib/derby.jar" />
   
   </path>
      
   <taskdef name="hibernatetool"
            classname="org.hibernate.tool.ant.HibernateToolTask"
            classpathref="toolslib" />
   
   <target name="makeschema">
      <hibernatetool destdir="./">
            <classpath>
               <path location="./classes"/>
            </classpath>
         <configuration configurationfile="hibernate.cfg.xml">
            <fileset dir="./src">
               <include name="**/*.hbm.xml"/>
            </fileset>
         </configuration>
         <hbm2ddl drop="true" console="true" outputfilename="ddl.sql"/>
      </hibernatetool>
   </target>

</project>


Code between sessionFactory.openSession() and session.close():
Code:
package com.company.product.datamodel;

import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;

public class HibernateTest {

   private static final SessionFactory sessionFactory = new Configuration().configure().buildSessionFactory();
   
   /**
    * @param args
    */
   public static void main(String[] args) {
      try {
         Session s = sessionFactory.getCurrentSession();
         s.beginTransaction();
         
         User u = new User();
         u.setLogin("admin");
         u.setPassword("password");
         
         java.util.Date d = new java.util.Date();
         
         u.setCreationDate(d);
         u.setModifiedDate(d);
         
         u.setAdmin(true);
         u.setExpiredPassword(false);
         u.setSavedPaymentInfo(false);
         
         s.save(u);
         s.getTransaction().commit();
      }
      catch (Exception e) {
         e.printStackTrace();
      }
   }

}


Full stack trace of any exception that occurs:

When running "ant makeschema" with hibernate.cfg.xml as shown above:
Code:
D:\Projects\ProtoTypes\build.xml:27: org.hibernate.MappingException: Resource: src/com/pearson/mtx/datamodel/User.hbm.xml not found
   at org.hibernate.tool.ant.HibernateToolTask.reportException(HibernateToolTask.java:194)
   at org.hibernate.tool.ant.HibernateToolTask.execute(HibernateToolTask.java:163)
   at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:275)
   at org.apache.tools.ant.Task.perform(Task.java:364)
   at org.apache.tools.ant.Target.execute(Target.java:341)
   at org.apache.tools.ant.Target.performTasks(Target.java:369)
   at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1216)
   at org.apache.tools.ant.Project.executeTarget(Project.java:1185)
   at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:40)
   at org.eclipse.ant.internal.ui.antsupport.EclipseDefaultExecutor.executeTargets(EclipseDefaultExecutor.java:32)
   at org.apache.tools.ant.Project.executeTargets(Project.java:1068)
   at org.eclipse.ant.internal.ui.antsupport.InternalAntRunner.run(InternalAntRunner.java:423)
   at org.eclipse.ant.internal.ui.antsupport.InternalAntRunner.main(InternalAntRunner.java:137)
Caused by: org.hibernate.MappingException: Resource: src/com/pearson/mtx/datamodel/User.hbm.xml not found
   at org.hibernate.cfg.Configuration.addResource(Configuration.java:479)
   at org.hibernate.cfg.Configuration.parseMappingElement(Configuration.java:1465)
   at org.hibernate.cfg.Configuration.parseSessionFactory(Configuration.java:1433)
   at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1414)
   at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1390)
   at org.hibernate.cfg.Configuration.configure(Configuration.java:1344)
   at org.hibernate.tool.ant.ConfigurationTask.doConfiguration(ConfigurationTask.java:108)
   at org.hibernate.tool.ant.ConfigurationTask.getConfiguration(ConfigurationTask.java:55)
   at org.hibernate.tool.ant.HibernateToolTask.getConfiguration(HibernateToolTask.java:226)
   at org.hibernate.tool.ant.Hbm2DDLExporterTask.execute(Hbm2DDLExporterTask.java:45)
   at org.hibernate.tool.ant.HibernateToolTask.execute(HibernateToolTask.java:160)
   ... 11 more
--- Nested Exception ---
org.hibernate.MappingException: Resource: src/com/pearson/mtx/datamodel/User.hbm.xml not found
   at org.hibernate.cfg.Configuration.addResource(Configuration.java:479)
   at org.hibernate.cfg.Configuration.parseMappingElement(Configuration.java:1465)
   at org.hibernate.cfg.Configuration.parseSessionFactory(Configuration.java:1433)
   at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1414)
   at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1390)
   at org.hibernate.cfg.Configuration.configure(Configuration.java:1344)
   at org.hibernate.tool.ant.ConfigurationTask.doConfiguration(ConfigurationTask.java:108)
   at org.hibernate.tool.ant.ConfigurationTask.getConfiguration(ConfigurationTask.java:55)
   at org.hibernate.tool.ant.HibernateToolTask.getConfiguration(HibernateToolTask.java:226)
   at org.hibernate.tool.ant.Hbm2DDLExporterTask.execute(Hbm2DDLExporterTask.java:45)
   at org.hibernate.tool.ant.HibernateToolTask.execute(HibernateToolTask.java:160)
   at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:275)
   at org.apache.tools.ant.Task.perform(Task.java:364)
   at org.apache.tools.ant.Target.execute(Target.java:341)
   at org.apache.tools.ant.Target.performTasks(Target.java:369)
   at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1216)
   at org.apache.tools.ant.Project.executeTarget(Project.java:1185)
   at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:40)
   at org.eclipse.ant.internal.ui.antsupport.EclipseDefaultExecutor.executeTargets(EclipseDefaultExecutor.java:32)
   at org.apache.tools.ant.Project.executeTargets(Project.java:1068)
   at org.eclipse.ant.internal.ui.antsupport.InternalAntRunner.run(InternalAntRunner.java:423)
   at org.eclipse.ant.internal.ui.antsupport.InternalAntRunner.main(InternalAntRunner.java:137)


When I remove the mapping element from hibernate.cfg.xml, hbm2ddl runs perfectly, however my running my Hibernate Test class yields:

Code:
org.hibernate.MappingException: Unknown entity: com.company.product.datamodel.User
   at org.hibernate.impl.SessionFactoryImpl.getEntityPersister(SessionFactoryImpl.java:514)
   at org.hibernate.impl.SessionImpl.getEntityPersister(SessionImpl.java:1302)
   at org.hibernate.event.def.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:89)
   at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.saveWithGeneratedOrRequestedId(DefaultSaveOrUpdateEventListener.java:186)
   at org.hibernate.event.def.DefaultSaveEventListener.saveWithGeneratedOrRequestedId(DefaultSaveEventListener.java:33)
   at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.entityIsTransient(DefaultSaveOrUpdateEventListener.java:175)
   at org.hibernate.event.def.DefaultSaveEventListener.performSaveOrUpdate(DefaultSaveEventListener.java:27)
   at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:70)
   at org.hibernate.impl.SessionImpl.fireSave(SessionImpl.java:530)
   at org.hibernate.impl.SessionImpl.save(SessionImpl.java:518)
   at org.hibernate.impl.SessionImpl.save(SessionImpl.java:514)
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
   at java.lang.reflect.Method.invoke(Unknown Source)
   at org.hibernate.context.ThreadLocalSessionContext$TransactionProtectionWrapper.invoke(ThreadLocalSessionContext.java:301)
   at $Proxy0.save(Unknown Source)
   at com.company.product.datamodel.HibernateTest.main(HibernateTest.java:32)


Name and version of the database you are using: Derby 10.1.3.1
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max
 Post subject:
PostPosted: Mon Jul 24, 2006 4:58 pm 
Hibernate Team
Hibernate Team

Joined: Tue Aug 26, 2003 6:10 am
Posts: 8615
Location: Neuchatel, Switzerland (Danish)
remember to have the mapping files and classes in the classpath of the ant task.

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emmanuel
 Post subject:
PostPosted: Mon Jul 24, 2006 5:23 pm 
Hibernate Team
Hibernate Team

Joined: Sun Sep 14, 2003 3:54 am
Posts: 7256
Location: Paris, France
Damn, Max we should add a bomb detector to the tools ;-)

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max
 Post subject:
PostPosted: Tue Jul 25, 2006 1:03 am 
Hibernate Team
Hibernate Team

Joined: Tue Aug 26, 2003 6:10 am
Posts: 8615
Location: Neuchatel, Switzerland (Danish)
yeah maybe that would help ;)

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evossler
 Post subject:
PostPosted: Tue Jul 25, 2006 8:32 am 
Newbie

Joined: Mon Jul 24, 2006 2:23 pm
Posts: 3
Well, that didn't seem to change the behavior any. I added my source dir to the classpath in the ant task without any result.

However, it did prompt me to notice that the mapping element in my hibernate.cfg.xml file was wrong -- I specified the mapping file relative to the hibernate.cfg.xml, instead of relative to the classpath.

Thanks!

Eric
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max
 Post subject:
PostPosted: Tue Jul 25, 2006 8:34 am 
Hibernate Team
Hibernate Team

Joined: Tue Aug 26, 2003 6:10 am
Posts: 8615
Location: Neuchatel, Switzerland (Danish)
well besides having the right classpath you also have to specify the resources correctly - just like any other class or resource in java.

e.g. you specified "src/com/pearson/mtx/datamodel/User.hbm.xml" which probably should have been "com/pearson/mtx/datamodel/User.hbm.xml"

You don't say import src.comp.pearson.mtx.datamodel.User, right ? :)

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