Maybe I am stupid, but I don't understend why you have lazyInitializacion, you
use some join?
This is doesn't appear in EventDao? They use only ona table. Accordingly what
you want to show and what your HQL query look like you use diferent fetch. But
this is not good explain to me , so just have a look in topic Hibernate Join
Fetch.
--- On Sat, 5/30/09, federicomiral...@gmail.com <federicomiral...@gmail.com>
wrote:
From: federicomiral...@gmail.com <federicomiral...@gmail.com>
Subject: [java ee programming] org.hibernate.LazyInitializationException ERROR
To: "Grupo J2EE" <java-ee-j2ee-programming-with-passion@googlegroups.com>
Date: Saturday, May 30, 2009, 12:45 PM
Hi everyone!!!
I don't understand why when i run the following code (using DAO pattern):
Hobby hobby = hobbyDao.find(h.getMyHobbyId());
System.out.println("Hobby = " + hobby.getHobby());
System.out.println("Years of practice =
"+hobby.getYearIstartedThisHobby());
it throws an exception:
GRAVE: could not initialize proxy - no Session
org.hibernate.LazyInitializationException: could not initialize proxy - no
Session
at
org.hibernate.proxy.AbstractLazyInitializer.initialize(AbstractLazyInitializer.java:57)
at
org.hibernate.proxy.AbstractLazyInitializer.getImplementation(AbstractLazyInitializer.java:111)
at
org.hibernate.proxy.pojo.cglib.CGLIBLazyInitializer.invoke(CGLIBLazyInitializer.java:150)
at Hobby$$EnhancerByCGLIB$$cb36960a.getHobby(<generated>)
at Main.main(Main.java:24)
Exception in thread "main" org.hibernate.LazyInitializationException: could not
initialize proxy - no Session
at
org.hibernate.proxy.AbstractLazyInitializer.initialize(AbstractLazyInitializer.java:57)
at
org.hibernate.proxy.AbstractLazyInitializer.getImplementation(AbstractLazyInitializer.java:111)
at
org.hibernate.proxy.pojo.cglib.CGLIBLazyInitializer.invoke(CGLIBLazyInitializer.java:150)
at Hobby$$EnhancerByCGLIB$$cb36960a.getHobby(<generated>)
at Main.main(Main.java:24)
Java Result: 1
The only way i figured out to avoid this is to DISABLED Lazy initialization by
setting in Hobby.hbm.xml:
<class name="Hobby" table="hobby" lazy="false">
...
The strange thing is that this code is based on "HibernateSimpleDaoInterface"
project from LAB-3514 where Lazy="false" doesn't exist in Event.hbm.xml.
I expecting that someone could clarify this.
Thanks in advance!
Federico Miralles
Mendoza, ARGENTINA
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