Hibernate 面接の質問と回答
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? |
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