Hibernate 面试题与答案

Question: Define cascade and inverse option in one-many mapping?

Answer: cascade enable operations to cascade to child entities.
cascade="all|none|save-update|delete|all-delete-orphan"
inverse mark this collection as the "inverse" end of a bidirectional association. inverse="true|false" Essentially "inverse" indicates which end of a relationship should be ignored, so when persisting a parent who has a collection of children, should you ask the parent for its list of children, or ask the children who the parents are?