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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