Hi,

After reading http://www.hibernate.org/171.html (Hibernate and dynamic models) it is not quite clear if it is possible to use dynamic-component to add new key/value pairs during the lifetime of SessionFactory.

As I understand Map keys which will be persisted must be declared as <property> elements.

Ex:

<dynamic-component name="userAttributes">
<property name="foo" column="FOO"/>
<property name="bar" column="BAR"/>
<many-to-one name="baz" class="eg.Baz" column="BAZ"/>
</dynamic-component>

if Map contains key/values:

foo/1
bar/2
aaa/3

aaa will be not persisted??

Is it possible to add <property name="aaa" column="AAA"/> at runtime for existing SessionFactory to make aaa persistent??

No, you can add it using Configuration and then rebuild SF.