@OneToMany(mappedBy = "mandatory",fetch = FetchType.LAZY)
public Set<DefaultParameter> getDefaultParameters() {
return defaultParameters;
}
I have the above property in my entity,when I save this entity hibernate will also save above property , does hibernate save the entity and its mapped properties ?

If you have a CascadeType of ALL, the save will cascade to the associated properties. If not, you may need to save each individual entity after the association has been made.

Here's some good Wiki information on saveing bi-directional relationships:

http://en.wikibooks.org/wiki/Java_Persi ... ationships

And here's a little tutorial on saving many-to-many mapped entities with Hiberante:


http://jpa.ezhibernate.com/Javacode/learn.jsp?tutorial=19mappingmanytomanyrelationships