Hi Ravi, the easiest way is to define a "Cascade" attribute on your relationship annotation: @OneToMany(mappedBy="...", cascade=CascadeType.ALL, fetch=...) It gets more complicated if you cannot simply cascade the deletes (would be no good idea on many-to-many relationships ;-) ). In this case, you have to cleanup both sides of the relation before deleting child or parent. So, if you have an entity "Parent" and an Entity "Child" with a bidirectional "ManyToMany" relationship, and you want to remove one child from the relationship (without deleting it), you would have to do this (snippet for a SessionBean which contains a reference to the entity manager): Child child = this.entityManager.getReference(Child.class, childId ); | | Collection<Parent> listParents = child.getParents(); | Iterator<Parent> iteratorParents = listParents.iterator(); | while (iteratorParents.hasNext() == true) | { | Parent parentForChild = iteratorParents.next(); | parentForChild.getChilds().remove(child); | } | | this.entityManager.remove(child); | Hope this helps As this question comes up quite often, it is maybe a good time to create a Wiki article about relationships ;-). Wolfgang View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4189788#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...