hibernate Archives - Page 3 of 6

Creation timestamp and last update timestamp with Hibernate and MySQL

For a certain Hibernate entity we have a requirement to store its creation time and the last time it was updated. How would ...

May 18, 2022
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Hibernate SessionFactory vs. JPA EntityManagerFactory

I am new to Hibernate and I’m not sure whether to use a Hibernate SessionFactory or a JPA EntityManagerFactory to create a Hibernate ...

May 18, 2022
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What is the difference between Hibernate and Spring Data JPA

What are the main differences between Hibernate and Spring Data JPA? When should we not use Hibernate or Spring Data JPA? Also, when ...

May 18, 2022
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PersistentObjectException: detached entity passed to persist thrown by JPA and Hibernate

I have a JPA-persisted object model that contains a many-to-one relationship: an Account has many Transactions. A Transaction has one Account. Here’s a ...

May 17, 2022
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org.hibernate.HibernateException: Access to DialectResolutionInfo cannot be null when ‘hibernate.dialect’ not set

I am trying run a spring-boot application which uses hibernate via spring-jpa, but i am getting this error: Caused by: org.hibernate.HibernateException: Access to ...

May 16, 2022
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JPA and Hibernate – Criteria vs. JPQL or HQL

What are the pros and cons of using Criteria or HQL? The Criteria API is a nice object-oriented way to express queries in ...

May 16, 2022
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Hibernate – A collection with cascade=”all-delete-orphan” was no longer referenced by the owning entity instance

I’m having the following issue when trying to update my entity: "A collection with cascade=”all-delete-orphan” was no longer referenced by the owning entity ...

May 16, 2022
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What is the easiest way to ignore a JPA field during persistence?

I’m essentially looking for a “@Ignore” type annotation with which I can stop a particular field from being persisted. How can this be ...

May 12, 2022
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The JPA hashCode() / equals() dilemma

There have been some discussions here about JPA entities and which hashCode()/equals() implementation should be used for JPA entity classes. Most (if not ...

May 11, 2022
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Hibernate: hbm2ddl.auto=update in production?

Is it okay to run Hibernate applications configured with hbm2ddl.auto=update to update the database schema in a production environment? 15 Answers 15

May 10, 2022
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