Top "Jpa" questions

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 …

java hibernate jpa sessionfactory hibernate-entitymanager

JPA OneToMany and ManyToOne throw: Repeated column in mapping for entity column (should be mapped with insert="false" update="false")

I have three classes one of the names is User and this user has other classes instances. Like this; public …

java hibernate jpa one-to-many many-to-one

JPA - Returning an auto generated id after persist()

I'm using JPA (EclipseLink) and Spring. Say I have a simple entity with an auto-generated ID: @Entity public class ABC …

java jpa

Spring Boot + JPA : Column name annotation ignored

I have a Spring Boot application with dependency spring-boot-starter-data-jpa. My entity class has a column annotation with a column name. …

java hibernate jpa spring-boot

Spring data jpa- No bean named 'entityManagerFactory' is defined; Injection of autowired dependencies failed

I'm developing application using spring data jpa,hibernate,mysql,tomcat7,maven and it's create error.I'm trying to figure it …

java spring-mvc jpa spring-data spring-data-jpa

Hibernate JPA Sequence (non-Id)

Is it possible to use a DB sequence for some column that is not the identifier/is not part of …

java hibernate jpa sequence

Hibernate problem - "Use of @OneToMany or @ManyToMany targeting an unmapped class"

I'm finding my feet with Hibernate Annotations and I've hit a problem I hope someone can help with. I have 2 …

hibernate jpa

Hibernate, @SequenceGenerator and allocationSize

We all know the default behaviour of Hibernate when using @SequenceGenerator - it increases real database sequence by one, multiple …

java hibernate jpa hilo

JPA: how do I persist a String into a database field, type MYSQL Text

The requirement is that the user can write an article, therefore I choose type Text for the content field inside …

java mysql orm jpa

JPA Query selecting only specific columns without using Criteria Query?

Is it possible to select, say, only properties A and B from an object using a JPA query without using …

java jpa jpa-2.0 jpa-2.1 criteriaquery