I need to add mappings in runtime because, at build time, i don't known wich classes are going to be mapped.
In the definition of hibernate config files (hibernate-configuration-2.0.dtd), the element session-factory is defined as follow :

<!ELEMENT session-factory (property*, mapping+, (class-cache|collection-cache|jcs-class-cache|jcs-collection-cache)*)>

That means that you must to have at least one mapping in your config file. Why this is needed? Why don't you can initialize HIbernate without any mapping and then add it to the configuration?
I've replaced mapping+ by a mapping* in the DTD and everything works fine.
Thank you

Hibernate version: 2.1.4

Mapping documents:
<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE hibernate-configuration
PUBLIC "-//Hibernate/Hibernate Configuration DTD//EN"
"http://hibernate.sourceforge.net/hibernate-configuration-2.0.dtd">

<hibernate-configuration>
<session-factory>
<!-- datasource connection properties -->
<property name="connection.datasource">myDS</property>
<property name="hibernate.connection.driver_class">oracle.jdbc.driver.OracleDriver</property>

<!-- dialect for Oracle 9 -->
<property name="dialect">net.sf.hibernate.dialect.Oracle9Dialect</property>
<property name="hibernate.show_sql">true</property>
<property name="hibernate.use_outer_join">true</property>
</session-factory>
</hibernate-configuration>

Full stack trace of any exception that occurs:
ERROR Configuration: problem parsing configuration/hibernate.cfg.xml
org.dom4j.DocumentException: Error on line 37 of document : Element session-factory not complete, expected elements '[property, mapping]'. Nested exception: Element session-factory not complete, expected elements '[property, mapping]'.
at org.dom4j.io.SAXReader.read(SAXReader.java:355)
at net.sf.hibernate.cfg.Configuration.doConfigure(Configuration.java:930)
at net.sf.hibernate.cfg.Configuration.configure(Configuration.java:874)
at net.sf.hibernate.cfg.Configuration.configure(Configuration.java:860)
at com.siderar.nca.core.hibernate.HibernateHelper.loadConfig(HibernateHelper.java:116)
at com.siderar.nca.core.hibernate.HibernateHelper.init(HibernateHelper.java:56)
at com.siderar.nca.core.hibernate.HibernateHelper.getSessionFactory(HibernateHelper.java:137)
at com.siderar.nca.core.hibernate.HibernateHelper.currentSession(HibernateHelper.java:80)
at com.siderar.nca.core.transaction.TransactionManager.initHibernateContext(TransactionManager.java:165)
at com.siderar.nca.core.transaction.TransactionManager.beginTransaction(TransactionManager.java:60)
at com.siderar.nca.core.systemevent.SystemEvent.execute(SystemEvent.java:170)
at com.siderar.nca.core.frontcontroller.FrontController.execute(FrontController.java:135)
at com.siderar.nca.core.utils.TestUtility.execute(TestUtility.java:124)
at com.siderar.nca.producto.module.FacturaItemModuleTest.testAltaFacturaAndDept(FacturaItemModuleTest.java:73)
at java.lang.reflect.Method.invoke(Native Method)
at junit.framework.TestCase.runTest(TestCase.java:154)
at junit.framework.TestCase.runBare(TestCase.java:127)
at junit.framework.TestResult$1.protect(TestResult.java:106)
at junit.framework.TestResult.runProtected(TestResult.java:124)
at junit.framework.TestResult.run(TestResult.java:109)
at junit.framework.TestCase.run(TestCase.java:118)
at junit.framework.TestSuite.runTest(TestSuite.java:208)
at junit.framework.TestSuite.run(TestSuite.java:203)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:421)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:305)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:186)
Nested exception:
oracle.xml.parser.v2.XMLParseException: Element session-factory not complete, expected elements '[property, mapping]'.
at oracle.xml.parser.v2.XMLError.flushErrors1(XMLError.java:205)
at oracle.xml.parser.v2.NonValidatingParser.parseDocument(NonValidatingParser.java:270)
at oracle.xml.parser.v2.XMLParser.parse(XMLParser.java:147)
at org.dom4j.io.SAXReader.read(SAXReader.java:339)
at net.sf.hibernate.cfg.Configuration.doConfigure(Configuration.java:930)
at net.sf.hibernate.cfg.Configuration.configure(Configuration.java:874)
at net.sf.hibernate.cfg.Configuration.configure(Configuration.java:860)
at com.siderar.nca.core.hibernate.HibernateHelper.loadConfig(HibernateHelper.java:116)
at com.siderar.nca.core.hibernate.HibernateHelper.init(HibernateHelper.java:56)
at com.siderar.nca.core.hibernate.HibernateHelper.getSessionFactory(HibernateHelper.java:137)
at com.siderar.nca.core.hibernate.HibernateHelper.currentSession(HibernateHelper.java:80)
at com.siderar.nca.core.transaction.TransactionManager.initHibernateContext(TransactionManager.java:165)
at com.siderar.nca.core.transaction.TransactionManager.beginTransaction(TransactionManager.java:60)
at com.siderar.nca.core.systemevent.SystemEvent.execute(SystemEvent.java:170)
at com.siderar.nca.core.frontcontroller.FrontController.execute(FrontController.java:135)
at com.siderar.nca.core.utils.TestUtility.execute(TestUtility.java:124)
at com.siderar.nca.producto.module.FacturaItemModuleTest.testAltaFacturaAndDept(FacturaItemModuleTest.java:73)
at java.lang.reflect.Method.invoke(Native Method)
at junit.framework.TestCase.runTest(TestCase.java:154)
at junit.framework.TestCase.runBare(TestCase.java:127)
at junit.framework.TestResult$1.protect(TestResult.java:106)
at junit.framework.TestResult.runProtected(TestResult.java:124)
at junit.framework.TestResult.run(TestResult.java:109)
at junit.framework.TestCase.run(TestCase.java:118)
at junit.framework.TestSuite.runTest(TestSuite.java:208)
at junit.framework.TestSuite.run(TestSuite.java:203)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:421)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:305)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:186)


Name and version of the database you are using:Oracle9

I assume your database is not created at runtime.

Therefore you already know which tables you have.

Which classes map to those tables?

<i>Those</i> are the classes you should specify in the config file.

I'm building the infrastructure of a big system with many bussiness subsystems in it. Each subsystem has its own database schema and runs in its own container, but all of them uses my infrastructure. I want to do some settings (common to all the subsystems) in hibernate config, but each subsystem has its own tables and classes, so, at build time, i don't know wich are my client's tables and classes, so i can't map them.

You could also load the hibernate.cfg.xml into a DOM, add your class mapping entrys and feed this into



On the other hand: It seams that the Configuration class can happyly be first initialized without a class mapping in the hibernate.cfg.xml and get the mappings later with one of the various add methods. So this is maybe a bug in the current DTD?

HTH
Ernst