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sc
 Post subject: AnnotationConfiguration().addPackage(packageName)
PostPosted: Thu Oct 25, 2007 11:40 am 
Newbie

Joined: Thu Oct 25, 2007 10:25 am
Posts: 2
Location: Denmark
Hi.

I have an issue with addPackage(), which i don't understand.

From what i can read it is possible to use this metod alone and add en entire package of entitys, but i can get it to work.

If i use addAnnotationdClass() there is not a problem, but den i have to add all the classes by themself.

Currently my code looks like this:
Code:
File configFile = new File(hibernateConfigurationFile);
SessionFactory sessionFactory = null;
if(packageName != null) {
   System.out.println("Package name: " + packageName);
   System.out.println("Hibernate configuration file: " + hibernateConfigurationFile);
      
   sessionFactory = new AnnotationConfiguration().addPackage(packageName).configure(configFile)
         .buildSessionFactory();
} else {
   sessionFactory = new AnnotationConfiguration().configure(configFile).buildSessionFactory();
}


System output is this:
Package name: it.courage.api.nas.db
Hibernate configuration file: etc/hibernate-no-datasource.cfg.xml

Error:
Exception in thread "main" org.hibernate.MappingException: Unknown entity: it.courage.api.nas.db.Order
at org.hibernate.impl.SessionFactoryImpl.getEntityPersister(SessionFactoryImpl.java:548)
at org.hibernate.event.def.DefaultLoadEventListener.onLoad(DefaultLoadEventListener.java:68)
at org.hibernate.impl.SessionImpl.fireLoad(SessionImpl.java:878)
at org.hibernate.impl.SessionImpl.get(SessionImpl.java:815)
at org.hibernate.impl.SessionImpl.get(SessionImpl.java:808)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.hibernate.context.ThreadLocalSessionContext$TransactionProtectionWrapper.invoke(ThreadLocalSessionContext.java:301)
at $Proxy0.get(Unknown Source)
at it.courage.api.nas.surveillance.SurveillanceApi.getOrder(SurveillanceApi.java:54)
at it.courage.api.nas.surveillance.SurveillanceApiTest.main(SurveillanceApiTest.java:19)

addAnnotatedClass() is working fine:
sessionFactory = new AnnotationConfiguration().addAnnotatedClass(Order.class).configure(configFile).buildSessionFactory();

Can someone tell me what i'm doing wrong???

/Stiwi.
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dshk
 Post subject: Re: AnnotationConfiguration().addPackage(packageName)
PostPosted: Thu Oct 25, 2007 5:54 pm 
Beginner
Beginner

Joined: Tue Feb 08, 2005 7:01 am
Posts: 21
Likely addPackage() refers only to package annotations, like those (or only those?) which appear in the special package-info.java source file. If that is true you cannot use this method to add all classes of a package.
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sc
 Post subject: Re: AnnotationConfiguration().addPackage(packageName)
PostPosted: Fri Oct 26, 2007 4:27 am 
Newbie

Joined: Thu Oct 25, 2007 10:25 am
Posts: 2
Location: Denmark
dshk wrote:
Likely addPackage() refers only to package annotations, like those (or only those?) which appear in the special package-info.java source file. If that is true you cannot use this method to add all classes of a package.


Hi dshk.

You may be right, but this is a quote from Beginning hibernate ISBN: 1-59059-693-5 - page 126

Quote:
You can also add an annotated class to your Hibernate configuration programmatically.
The annotations toolset comes with an org.hibernate.cfg.AnnotationConfiguration object that extends the base Hibernate Configuration object for adding mappings. The methods on AnnotationConfiguration for adding annotated classes to the configuration are as follows:

addAnnotatedClass(Class persistentClass) throws MappingException
addAnnotatedClasses(List<Class> classes)
addPackage(String packageName) throws MappingExeption

Using these methods, you can add one annotated class, a list of annotated classes, or an entire package (by name) of annotated classes. As with the Hibernate XML configuration file, the annotated entities are interoperable with XML mapped entities.


The way i read it, it should be possible to add a package.

/Stiwi.
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dshk
 Post subject: Re: AnnotationConfiguration().addPackage(packageName)
PostPosted: Fri Oct 26, 2007 5:02 am 
Beginner
Beginner

Joined: Tue Feb 08, 2005 7:01 am
Posts: 21
I checked the source and addPackage doesn't try to add classes, only package level annotations. So I believe either the book is wrong, or the specification of addPackage was changed in the meantime.
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