JPA Entity Manager Following are some of the important roles of an entity manager: – The entity manager implements the API and…
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jpa single table strategy
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JPA Set Mapping A Set is an interface that contains unique elements. These elements don’t maintain any order. A Set can be…
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Finding an entity To find an entity, EntityManger interface provides find() method that searches an element on the basis of primary key.…
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JPA Inheritence Overview Inheritence is a key feature of object-oriented programming language in which a child class can acquire the properties of…
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JPA Cascade Persist The cascade persist is used to specify that if an entity is persisted then all its associated child entities…
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Inserting an Entity In JPA, we can easily insert data into database through entities. The EntityManager provides persist() method to insert records.…
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JPA Cascade Remove The cascade remove is used to specify that if the parent entity is removed then all its related entities…
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JPA Installation In this section, we will learn how to install JPA on eclipse. See the following steps: – Open eclipse and…
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JPA Cascading Operations In JPA, if any operation is applied on an entity then it will perform on that particular entity only.…
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JPA Introduction The Java Persistence API (JPA) is a specification of Java. It is used to persist data between Java object and…