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Collection Mapping

A Collection is a java framework that groups multiple objects into a single unit. It is used to store, retrieve and manipulate the aggregate data.

In JPA, we can persist the object of wrapper classes and String using collections. JPA allows three kinds of objects to store in mapping collections - Basic Types, Entities and Embeddables.

Collection Types

On the basis of requirement, we can use different type of collections to persist the objects.

  • List
  • Set
  • Map

JPA Collection Mapping

The java.util package contains all the classes and interfaces of collection framework.

Next TopicJPA List Mapping

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