Can I change some hibernate entity properties
(such as lazy=true to lazy=false for collections) at runtime?

Thanks,
Remizov Dmitry.

Get the PersistentClass metadata from the Configuration, change the setting, rebuild the SessionFactory. Or, which is what you probably really need, learn about the runtime fetching options with HQL ("fetch" keyword) and Criteria (FetchMode).

Thanks,
but I am already trying to use metadata

ClassMetadata meta=factory.getClassMetadata(MyClass.class);
String[] props=meta.getPropertyNames();

in property names there are only my fields names, how can I access
another properties defined in *.hbm.xml file.

Remizov Dmitry.

Not the SessionFactory, the Configuration. There are two different metamodels in Hibernate.

Thanks it works.
Both aproach
1.PersistentClass pclass = conf.getClassMapping(MyClass.class) ....
with factory rebuild
2.Criteria.setFetchMode