Hallo,
ich bin absoluter Neuling was hibernate angeht und versuche nun schon seit 2 Tagen das Reference tutorial mit dem EventManager zum laufen zu bringen.

Alle config und mapping files sind vorhanden.

Ich bekomme immer diesen fehler.

log4j:WARN No appenders could be found for logger (org.hibernate.cfg.Environment).
log4j:WARN Please initialize the log4j system properly.
Exception in thread "main" org.hibernate.MappingException: Unknown entity: Event
at org.hibernate.impl.SessionFactoryImpl.getEntityPersister(SessionFactoryImpl.java:569)
at org.hibernate.impl.SessionImpl.getEntityPersister(SessionImpl.java:1086)
at org.hibernate.event.def.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:83)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.saveWithGeneratedOrRequestedId(DefaultSaveOrUpdateEventListener.java:184)
at org.hibernate.event.def.DefaultSaveEventListener.saveWithGeneratedOrRequestedId(DefaultSaveEventListener.java:33)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.entityIsTransient(DefaultSaveOrUpdateEventListener.java:173)
at org.hibernate.event.def.DefaultSaveEventListener.performSaveOrUpdate(DefaultSaveEventListener.java:27)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:69)
at org.hibernate.impl.SessionImpl.save(SessionImpl.java:481)
at org.hibernate.impl.SessionImpl.save(SessionImpl.java:476)
at EventManager.createAndStoreEvent(EventManager.java:25)
at EventManager.main(EventManager.java:13)


Kann mir einer erklären was diese Exception unknown Entity bedeuten soll ?




Meine hibernate.cfg.xml

<?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>
<!-- Database connection settings -->
<property name="connection.driver_class">org.hsqldb.jdbcDriver</property>
<property name="connection.url">jdbc:hsqldb:data/tutorial</property>
<property name="connection.username">sa</property>
<property name="connection.password"></property>
<!-- JDBC connection pool (use the built-in) -->
<property name="connection.pool_size">1</property>
<!-- SQL dialect -->
<property name="dialect">org.hibernate.dialect.HSQLDialect</property>
<!-- Echo all executed SQL to stdout -->
<property name="show_sql">true</property>
<!-- Drop and re-create the database schema on startup -->
<property name="hbm2ddl.auto">create</property>

</session-factory>
</hibernate-configuration>

Meine Event.hbm.xml:

<?xml version="1.0" encoding="UTF-8"?>
<hibernate-mapping>

<class name="Event" table="EVENTS">
<id name="id" column="EVENT_ID">
<generator class="increment"/>
</id>
<property name="date" type="timestamp" column="EVENT_DATE"/>
<property name="title"/>
</class>
</hibernate-mapping>







Hibernate version: 3.05



Full stack trace of any exception that occurs:

Name and version of the database you are using: HSQL

Vergleiche mal die beiden Dateien:

http://hibernate.org/hib_docs/v3/refere ... figuration

Also die beiden dateien sind gleich bis auf

<mapping resource="Event.hbm.xml"/> in der hibernate.cfg.xml.
wenn ich den eintrag reinmache findet er die Events.hbm.xml nicht mehr

<mapping resource="Event.hbm.xml"/>

dann kommt der fehler:

Alle klassen und xml files liegen im sourcefolder, habe noch nicht mal ein packsage erstellt. Hilfe



run:
[java] log4j:WARN No appenders could be found for logger (org.hibernate.cfg
.Environment).
[java] log4j:WARN Please initialize the log4j system properly.
[java] Initial SessionFactory creation failed.org.hibernate.MappingExceptio
n: Error reading resource: Event.hbm.xml
[java] Exception in thread "main" java.lang.ExceptionInInitializerError
[java] at HibernateUtil.<clinit>(Unknown Source)
[java] at EventManager.createAndStoreEvent(Unknown Source)
[java] at EventManager.main(Unknown Source)
[java] Caused by: org.hibernate.MappingException: Error reading resource: E
vent.hbm.xml
[java] at org.hibernate.cfg.Configuration.addResource(Configuration.jav
a:452)
[java] at org.hibernate.cfg.Configuration.parseMappingElement(Configura
tion.java:1263)
[java] at org.hibernate.cfg.Configuration.parseSessionFactory(Configura
tion.java:1235)
[java] at org.hibernate.cfg.Configuration.doConfigure(Configuration.jav
a:1217)
[java] at org.hibernate.cfg.Configuration.doConfigure(Configuration.jav
a:1184)
[java] at org.hibernate.cfg.Configuration.configure(Configuration.java:
1112)
[java] at org.hibernate.cfg.Configuration.configure(Configuration.java:
1098)
[java] ... 3 more
[java] Caused by: org.hibernate.MappingException: invalid mapping
[java] at org.hibernate.cfg.Configuration.addInputStream(Configuration.
java:399)
[java] at org.hibernate.cfg.Configuration.addResource(Configuration.jav
a:449)
[java] ... 9 more
[java] Caused by: org.xml.sax.SAXParseException: Document is invalid: no gr
ammar found.
[java] at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.c
reateSAXParseException(ErrorHandlerWrapper.java:236)
[java] at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.e
rror(ErrorHandlerWrapper.java:172)
[java] at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.repo
rtError(XMLErrorReporter.java:382)
[java] at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.repo
rtError(XMLErrorReporter.java:316)
[java] at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerI
mpl.scanStartElement(XMLNSDocumentScannerImpl.java:177)
[java] at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerI
mpl$NSContentDispatcher.scanRootElementHook(XMLNSDocumentScannerImpl.java:779)
[java] at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentSc
annerImpl$FragmentContentDispatcher.dispatch(XMLDocumentFragmentScannerImpl.java
:1794)
[java] at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentSc
annerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:368)
[java] at com.sun.org.apache.xerces.internal.parsers.XML11Configuration
.parse(XML11Configuration.java:834)
[java] at com.sun.org.apache.xerces.internal.parsers.XML11Configuration
.parse(XML11Configuration.java:764)
[java] at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XM
LParser.java:148)
[java] at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.
parse(AbstractSAXParser.java:1242)
[java] at org.dom4j.io.SAXReader.read(SAXReader.java:465)
[java] at org.hibernate.cfg.Configuration.addInputStream(Configuration.
java:398)
[java] ... 10 more
[java] Java Result: 1

Mit deinem Event.hbm.xml file stimmt was nicht:

[java] Caused by: org.xml.sax.SAXParseException: Document is invalid: no grammar found.

Keine Ahnung was das sein soll.

hm und vorschläge ?

habs per paste copy aus dem tutorial

das hat gefehlt.

<!DOCTYPE hibernate-mapping PUBLIC
"-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">