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 Post subject: hibernate tools hbm2hbmxml , without using hibernate-jpa-2.0
PostPosted: Thu Aug 04, 2011 9:27 am 

Joined: Sat Jul 30, 2011 2:49 am
Posts: 1
I have to implement ant base task to generate hibernate mapping (hbm.xml ) to a java bean when the bean given. So with the hibernate-tools i have successfully done that. But to annotate the pojo i have to use jpa 2.0 annotations (hibernate-jpa-2.0-api-1.0 from this jar)

Now My problem is Do we always have to use jpa annotations when we need to use hbm2hbmxml ? Cant we use hibernate annotations instead (ones in org.hibernate.annotations package)

because when i remove hibernate-jpa-2.0-api-1.0.jar from my classpath and use hibernate annotation to annotate the POJO it gives me following error

Executing Hibernate Tool with a Hibernate Annotation/EJB3 Configuration
[hibernatetool] 1. task: hbm2hbmxml (Generates a set of hbm.xml files)
[hibernatetool] log4j:WARN No appenders could be found for logger (org.hibernate.cfg.annotations.Version).
[hibernatetool] log4j:WARN Please initialize the log4j system properly.

java.lang.NoClassDefFoundError: javax/persistence/Entity
        at org.hibernate.cfg.AnnotationConfiguration.secondPassCompile(AnnotationConfiguration.java:253)
        at org.hibernate.cfg.Configuration.buildMappings(Configuration.java:1125)
        at org.hibernate.tool.ant.ConfigurationTask.getConfiguration(ConfigurationTask.java:56)
        at org.hibernate.tool.ant.HibernateToolTask.getConfiguration(HibernateToolTask.java:302)
        at org.hibernate.tool.ant.HibernateToolTask.getProperties(HibernateToolTask.java:318)
        at org.hibernate.tool.ant.ExporterTask.configureExporter(ExporterTask.java:94)
        at org.hibernate.tool.ant.ExporterTask.execute(ExporterTask.java:39)
        at org.hibernate.tool.ant.HibernateToolTask.execute(HibernateToolTask.java:186)
        at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:288)
        at sun.reflect.GeneratedMethodAccessor1.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106)
        at org.apache.tools.ant.Task.perform(Task.java:348)
        at org.apache.tools.ant.Target.execute(Target.java:357)
        at org.apache.tools.ant.Target.performTasks(Target.java:385)
        at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1337)
        at org.apache.tools.ant.Project.executeTarget(Project.java:1306)
        at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41)
        at org.apache.tools.ant.Project.executeTargets(Project.java:1189)
        at org.apache.tools.ant.Main.runBuild(Main.java:758)
        at org.apache.tools.ant.Main.startAnt(Main.java:217)
        at org.apache.tools.ant.launch.Launcher.run(Launcher.java:257)
        at org.apache.tools.ant.launch.Launcher.main(Launcher.java:104)
Caused by: java.lang.ClassNotFoundException: javax.persistence.Entity
        at org.apache.tools.ant.AntClassLoader.findClassInComponents(AntClassLoader.java:1400)
        at org.apache.tools.ant.AntClassLoader.findClass(AntClassLoader.java:1341)
        at org.apache.tools.ant.AntClassLoader.loadClass(AntClassLoader.java:1088)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
        ... 24 more

My ant task is as follows

<taskdef name="hibernatetool" classname="org.hibernate.tool.ant.HibernateToolTask" classpathref="libraries" />
<target name="init" depends="clean, compile">
      <hibernatetool destdir="${targetdir}">
            <!-- it is in this classpath you put your classes dir, and/or jpa persistence compliant jar -->
            <path location="${basedir}/bin" />
         <annotationconfiguration configurationfile="${basedir}/src/hibernate.cfg.xml" />
         <hbm2hbmxml />

 Post subject: Re: hibernate tools hbm2hbmxml , without using hibernate-jpa-2.0
PostPosted: Fri Aug 05, 2011 8:51 am 

Joined: Tue Aug 04, 2009 7:45 am
Posts: 124
Hibernate annotaions extend jpa annotations with Hibernate features.

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