TheServerSide

How JPA EntityManager handles Hibernate transaction management

The key to successful Hibernate transaction management is the JPA EntityManager. It's the only JPA component that can start transactions, commit transactions and hook into Hibernate transactions that ...
TheServerSide

The JPA 2.0 EntityManager vs. the Hibernate Session: Which one to use?

It's the age-old question that almost all enterprise data architects have to ask themselves at some point in time: When using the Hibernate ORM framework with the Java Persistence API (JPA), should ...
技術評論社

第6回 OpenJPA 1. 0.0

OpenJPAは、 Java EE 5で導入されたEJB3. 0(JSR220)のうち、 Java Persistence API(JPA)を実装したオープンソースプロダクトです。2007年8月28日にバージョン1. 0.0がリリースされました(1.0.0のアナウンス)。配布はApacheライセンスの下で行われています。 これが組み込まれて ...
InfoWorld

Java persistence with JPA and Hibernate: Entities and relationships

The Jakarta Persistence API (JPA) is a Java specification that bridges the gap between relational databases and object-oriented programming. This two-part tutorial introduces JPA and explains how Java ...
GitHub

Guice-persist: Injection of EntityManager outside a UnitOfWork can lead to never closed ...

Form the commit rb7a02b02d81c (Jul 7, 2011), in JpaPersistService.java which is a Provider<EntityManager>, in the get() method, we can see that if we don't already have an EntityManager stored in the ...
InfoWorld

Java persistence with JPA and Hibernate: Persisting data to a database

You’ll also get started with JPA Query Language (JPQL) and use it to execute a few simple database operations on the example application. The complete source code for the example application can be ...