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hussains
 Post subject: cant generate DDL from hbm.xml using hbm2ddl tool
PostPosted: Tue Oct 05, 2004 1:44 pm 
Beginner
Beginner

Joined: Thu Jul 29, 2004 7:14 pm
Posts: 41
Hibernate version: 2.1.4

Mapping documents:
<?xml version="1.0"?>

<!DOCTYPE hibernate-mapping PUBLIC
"-//Hibernate/Hibernate Mapping DTD 2.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-2.0.dtd">

<hibernate-mapping>

<class name="dbdemo.Address" table="Address" dynamic-update="false">
<id name="id" column="ID" type="string" unsaved-value="any">
<generator class="assigned">
</generator>
</id>

<property name="city" type="string" update="true" insert="true" column="City"/>
<property name="state" type="string" update="true" insert="true" column="State"/>
<property name="zip" type="string" update="true" insert="true" column="Zip"/>

</class>

</hibernate-mapping>

Code between sessionFactory.openSession() and session.close():

Full stack trace of any exception that occurs:
C:\Examples\HB\NonManagedEnvironment\Meagle>ant schemaexport
Buildfile: build.xml

schemaexport:
[schemaexport] Oct 5, 2004 1:16:31 PM net.sf.hibernate.cfg.Environment <clinit>
[schemaexport] INFO: Hibernate 2.1.4
[schemaexport] Oct 5, 2004 1:16:31 PM net.sf.hibernate.cfg.Environment <clinit>
[schemaexport] INFO: loaded properties from resource hibernate.properties: {hibe
rnate.connection.driver_class=sun.jdbc.odbc.JdbcOdbcDriver, hibernate.cglib.use_
reflection_optimizer=true, hibernate.cache.provider_class=net.sf.ehcache.hiberna
te.Provider, hibernate.cache.use_query_cache=true, hibernate.max_fetch_depth=1,
hibernate.dialect=net.sf.hibernate.dialect.SQLServerDialect, hibernate.jdbc.use_
streams_for_binary=true, hibernate.jdbc.batch_size=0, hibernate.query.substituti
ons=true 1, false 0, yes 'Y', no 'N', hibernate.proxool.pool_alias=pool1, hibern
ate.connection.username=sa, hibernate.cache.region_prefix=hibernate.test, hibern
ate.connection.url=jdbc:odbc:Syed_Testing, hibernate.show_sql=false, hibernate.c
onnection.password=, hibernate.connection.pool_size=3}
[schemaexport] Oct 5, 2004 1:16:31 PM net.sf.hibernate.cfg.Environment <clinit>
[schemaexport] INFO: using java.io streams to persist binary types
[schemaexport] Oct 5, 2004 1:16:31 PM net.sf.hibernate.cfg.Environment <clinit>
[schemaexport] INFO: using CGLIB reflection optimizer
[schemaexport] Oct 5, 2004 1:16:31 PM net.sf.hibernate.cfg.Configuration addFile

[schemaexport] INFO: Mapping file: C:\Examples\HB\NonManagedEnvironment\Meagle\s
rc\Address.hbm.xml
[schemaexport] Oct 5, 2004 1:16:31 PM net.sf.hibernate.cfg.Configuration add
[schemaexport] SEVERE: Could not compile the mapping document
[schemaexport] net.sf.hibernate.MappingException: persistent class [Address] not
found
[schemaexport] at net.sf.hibernate.cfg.Binder.bindClass(Binder.java:84)
[schemaexport] at net.sf.hibernate.cfg.Binder.bindRootClass(Binder.java:221)
[schemaexport] at net.sf.hibernate.cfg.Binder.bindRoot(Binder.java:1243)
[schemaexport] at net.sf.hibernate.cfg.Configuration.add(Configuration.java:249
)
[schemaexport] at net.sf.hibernate.cfg.Configuration.addFile(Configuration.java
:171)
[schemaexport] at net.sf.hibernate.tool.hbm2ddl.SchemaExportTask.getConfigurati
on(SchemaExportTask.java:195)
[schemaexport] at net.sf.hibernate.tool.hbm2ddl.SchemaExportTask.execute(Schema
ExportTask.java:135)
[schemaexport] at org.apache.tools.ant.UnknownElement.execute(UnknownElement.ja
va:269)
[schemaexport] at org.apache.tools.ant.Task.perform(Task.java:364)
[schemaexport] at org.apache.tools.ant.Target.execute(Target.java:301)
[schemaexport] at org.apache.tools.ant.Target.performTasks(Target.java:328)
[schemaexport] at org.apache.tools.ant.Project.executeTarget(Project.java:1215)

[schemaexport] at org.apache.tools.ant.Project.executeTargets(Project.java:1063
)
[schemaexport] at org.apache.tools.ant.Main.runBuild(Main.java:632)
[schemaexport] at org.apache.tools.ant.Main.startAnt(Main.java:183)
[schemaexport] at org.apache.tools.ant.launch.Launcher.run(Launcher.java:197)
[schemaexport] at org.apache.tools.ant.launch.Launcher.main(Launcher.java:56)
[schemaexport] Caused by: java.lang.ClassNotFoundException: Address
[schemaexport] at java.net.URLClassLoader$1.run(URLClassLoader.java:199)
[schemaexport] at java.security.AccessController.doPrivileged(Native Method)
[schemaexport] at java.net.URLClassLoader.findClass(URLClassLoader.java:187)
[schemaexport] at java.lang.ClassLoader.loadClass(ClassLoader.java:289)
[schemaexport] at java.lang.ClassLoader.loadClass(ClassLoader.java:235)
[schemaexport] at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:302)

[schemaexport] at java.lang.Class.forName0(Native Method)
[schemaexport] at java.lang.Class.forName(Class.java:141)
[schemaexport] at net.sf.hibernate.util.ReflectHelper.classForName(ReflectHelpe
r.java:102)
[schemaexport] at net.sf.hibernate.cfg.Binder.bindClass(Binder.java:81)
[schemaexport] ... 16 more
[schemaexport] Oct 5, 2004 1:16:31 PM net.sf.hibernate.cfg.Configuration addFile

[schemaexport] SEVERE: Could not configure datastore from file: C:\Examples\HB\N
onManagedEnvironment\Meagle\src\Address.hbm.xml
[schemaexport] net.sf.hibernate.MappingException: persistent class [Address] not
found
[schemaexport] at net.sf.hibernate.cfg.Binder.bindClass(Binder.java:84)
[schemaexport] at net.sf.hibernate.cfg.Binder.bindRootClass(Binder.java:221)
[schemaexport] at net.sf.hibernate.cfg.Binder.bindRoot(Binder.java:1243)
[schemaexport] at net.sf.hibernate.cfg.Configuration.add(Configuration.java:249
)
[schemaexport] at net.sf.hibernate.cfg.Configuration.addFile(Configuration.java
:171)
[schemaexport] at net.sf.hibernate.tool.hbm2ddl.SchemaExportTask.getConfigurati
on(SchemaExportTask.java:195)
[schemaexport] at net.sf.hibernate.tool.hbm2ddl.SchemaExportTask.execute(Schema
ExportTask.java:135)
[schemaexport] at org.apache.tools.ant.UnknownElement.execute(UnknownElement.ja
va:269)
[schemaexport] at org.apache.tools.ant.Task.perform(Task.java:364)
[schemaexport] at org.apache.tools.ant.Target.execute(Target.java:301)
[schemaexport] at org.apache.tools.ant.Target.performTasks(Target.java:328)
[schemaexport] at org.apache.tools.ant.Project.executeTarget(Project.java:1215)

[schemaexport] at org.apache.tools.ant.Project.executeTargets(Project.java:1063
)
[schemaexport] at org.apache.tools.ant.Main.runBuild(Main.java:632)
[schemaexport] at org.apache.tools.ant.Main.startAnt(Main.java:183)
[schemaexport] at org.apache.tools.ant.launch.Launcher.run(Launcher.java:197)
[schemaexport] at org.apache.tools.ant.launch.Launcher.main(Launcher.java:56)
[schemaexport] Caused by: java.lang.ClassNotFoundException: Address
[schemaexport] at java.net.URLClassLoader$1.run(URLClassLoader.java:199)
[schemaexport] at java.security.AccessController.doPrivileged(Native Method)
[schemaexport] at java.net.URLClassLoader.findClass(URLClassLoader.java:187)
[schemaexport] at java.lang.ClassLoader.loadClass(ClassLoader.java:289)
[schemaexport] at java.lang.ClassLoader.loadClass(ClassLoader.java:235)
[schemaexport] at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:302)

[schemaexport] at java.lang.Class.forName0(Native Method)
[schemaexport] at java.lang.Class.forName(Class.java:141)
[schemaexport] at net.sf.hibernate.util.ReflectHelper.classForName(ReflectHelpe
r.java:102)
[schemaexport] at net.sf.hibernate.cfg.Binder.bindClass(Binder.java:81)
[schemaexport] ... 16 more

BUILD FAILED
C:\Examples\HB\NonManagedEnvironment\Meagle\build.xml:84: Schema text failed: ne
t.sf.hibernate.MappingException: persistent class [Address] not found

Total time: 1 second
Name and version of the database you are using:

The generated SQL (show_sql=true):

Debug level Hibernate log excerpt:


Hi,

I am trying to create a .sql file from my .hbm.xml file. So first I create two folders lib and src in my base folder. In lib i put these jar files :
cglib-full-2.0.1.jar
commons-collections-2.1.jar
commons-logging-1.0.3.jar
dom4j-1.4.jar
ehcache-0.7.jar
hibernate2.jar
hibernate-tools.jar
jdbc2_0-stdext.jar
jta.jar
odmg-3.0.jar
jdom.jar
velocity-1.3.1.jar

In src I create Address.hbm.xml which is listed above.
In base folder I have my hibernate.properties file which i have tested that it connects to my database. I then created my ant script build.xml which is :

<?xml version="1.0"?>

<project name="HB" default="schemaexport" basedir=".">

<!-- Set up properties containing important project directories -->
<property name="source.dir" value="src"/>
<property name="lib.dir" value="lib"/>

<!-- Set up the class path for compilation and execution -->
<path id="project.class.path">
<!-- Include jars in the project library directory -->
<fileset dir="${lib.dir}">
<include name="*.jar"/>
</fileset>
</path>
<target name="schemaexport" description="Generate the DDL statements from the O/R mapping files">

<taskdef name="schemaexport"
classname="net.sf.hibernate.tool.hbm2ddl.SchemaExportTask"
classpathref="project.class.path"/>

<schemaexport
properties="hibernate.properties"
quiet="no"
text="no"
drop="no"
delimiter=";"
output="schema-export.sql">
<fileset dir="${source.dir}">
<include name="**/*.hbm.xml"/>
</fileset>
</schemaexport>

</target>
</project>


When I run ant schemaexport, I am getting the error message which I have mentioned above.

Any reason?

Thanks
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max
 Post subject:
PostPosted: Tue Oct 05, 2004 3:35 pm 
Hibernate Team
Hibernate Team

Joined: Tue Aug 26, 2003 6:10 am
Posts: 8615
Location: Neuchatel, Switzerland (Danish)
you don't add your mapped classes to the class library- thus the complain about hibernate not being able to load the classes!

_________________
Max
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hussains
 Post subject:
PostPosted: Wed Oct 06, 2004 10:03 am 
Beginner
Beginner

Joined: Thu Jul 29, 2004 7:14 pm
Posts: 41
max wrote:
you don't add your mapped classes to the class library- thus the complain about hibernate not being able to load the classes!


I made this change in my build.xml

<!-- Set up the class path for compilation and execution -->
<path id="project.class.path">
<!-- Include jars in the project library directory -->
<fileset dir="${lib.dir}">
<include name="*.jar"/>
</fileset>
<fileset dir="${source.dir}">
<include name="*.hbm.xml"/>
</fileset>
</path>

But I am still getting the same error message.

In my base folder I have hibernate.properties and build.xml
In my src folder I have Address.hbm.xml
In my lib folder I have all my jar files


Thanks
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 Profile  
 
hussains
 Post subject:
PostPosted: Wed Oct 06, 2004 6:30 pm 
Beginner
Beginner

Joined: Thu Jul 29, 2004 7:14 pm
Posts: 41
I got it working when I put the Address.class file in my src folder and changing the build.xml to :

<!-- Set up the class path for compilation and execution -->
<path id="project.class.path">
<!-- Include jars in the project library directory -->
<fileset dir="${lib.dir}">
<include name="*.jar"/>
</fileset>
<pathelement location="${source.dir}"/>
</path>

So hbm2ddl is not an independant tool that can create DDL form the hbm.xml alone. It needs the class file too. I wonder why?
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