Top "Jpa" questions

Joining two table entities in Spring Data JPA

I want to write a query like SELECT * FROM Release_date_type a LEFT JOIN cache_media b on a.…

spring hibernate jpa spring-data-jpa

How to annotate MYSQL autoincrement field with JPA annotations

Straight to the point, problem is saving the object Operator into MySQL DB. Prior to save, I try to select …

java mysql orm jpa annotations

Hibernate: "Field 'id' doesn't have a default value"

I'm facing what I think is a simple problem with Hibernate, but can't solve it (Hibernate forums being unreachable certainly …

java hibernate jpa persistence

JPA getSingleResult() or null

I have an insertOrUpdate method which inserts an Entity when it doesn't exist or update it if it does. To …

java jpa

org.hibernate.MappingException: Could not determine type for: java.util.Set

Although this question asked many times and I have already used all the suggestion but still I am getting this …

java hibernate jpa annotations

Spring CrudRepository findByInventoryIds(List<Long> inventoryIdList) - equivalent to IN clause

In Spring CrudRepository, do we have support for "IN clause" for a field? ie something similar to the following? findByInventoryIds(…

java spring jpa spring-data spring-data-jpa

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 …

java database hibernate jpa

How to fetch FetchType.LAZY associations with JPA and Hibernate in a Spring Controller

I have a Person class: @Entity public class Person { @Id @GeneratedValue private Long id; @ManyToMany(fetch = FetchType.LAZY) private List&…

java spring hibernate jpa spring-data

In which case do you use the JPA @JoinTable annotation?

In which case do you use the JPA @JoinTable annotation?

java hibernate jpa many-to-many hibernate-mapping

Setting a JPA timestamp column to be generated by the database?

In my SQL Server 2000 database, I have a timestamp (in function not in data type) column of type DATETIME named …

java jpa persistence annotations timestamp