I have a Set in my class:

private String aStr;
private Set aSet = new HashSet();

And I following the hibernate in action example in saving a Set (page 212), like this:

[code]
<property name="aStr" type="string" column="a_STR" not-null="true" />

<set name="aSet" cascade="save-update" inverse="true">

<key column="SET_ID"/>
<element type="string" column="SET_STR" not-null="true"/>
</set>
[code]

When I save the class, the string 'aStr" is saved to the database, but the set is not. Can someone please tell me what did I miss?

I tried changing the "cascade" property in the mapping file, that does not help. And when I stepping thru the debugger, my "aSet" is not empty.

Thank you.

Sam
[/code]

read all you can find (reference guide, wiki, forum, hibernate in action) about "inverse" parameter, this is really important, you must read it

Thank you for your respond. I read the chapter 3 of "Hibernate in Action".

Now I remove the 'inverse" attribute since it is a directional relation, it still does not save the "set" of my "String" object in my class.




Any further is appreciated.

Sam