About begin

api-jpa

begin()

Start a resource transaction.(Method of javax.persistence.EntityTransaction)

 
manual

Database Connection using JPA

Describes the main JPA interfaces: EntityManagerFactory, EntityManager and EntityTransaction.... See JavaDoc Reference Page... ( ) . begin begin() EntityTransaction's method Start a resource transaction. ...

 
manual

Obtaining a JPA Database Connection

Shows how to use Java/JPA to connect to the ObjectDB Object Database.... JavaDoc Reference Page... , em, it is very easy to begin a transaction: em. getTransaction getTransaction() ... See JavaDoc Reference Page... ( ) . begin begin() EntityTransaction's method Start a resource ...

 
manual

Chapter 3 - Using JPA

Explains how to store, retrieve, update and delete entity objects using JPA. This chapter explains how to manage ObjectDB databases using the Java Persistence API (JPA). The first two pages introduce basic JPA interfaces and concepts: Database Connection using JPA Working with JPA Entity Objects ...

 
forum_thread

Attempt to begin a new transaction when a transaction is active

The code I have a RecordDao stateless java bean :  ... { em. getTransaction ( ) . begin ( ) ; em. persist ( r ) ; em. ... com.objectdb.o._PersistenceException: Attempt to begin a new transaction when a transaction is active root cause ...

 
issue

objectdb-2.6.9_06: Extended Persistence Context fails: 'Attempt to begin a new transaction when a transaction is active'

objectdb-2.6.9_01 NetBeans8.1+Glassfish4.1.1 Mac OS X Possibly related: How to Use a SF with extended Persistence Context? Test mini web app at: https://www.webel.com.au/downloads/objectdb/GreensoftObjectdbTestWebMini3683.2016-09-29.tgz ... com.objectdb.o._PersistenceException: Attempt to begin a new transaction when a transaction is active at ... Caused by: com.objectdb.o.UserException: Attempt to begin a new transaction when a transaction is active Again, this used ... //'com.objectdb.o.UserException: Attempt to begin a new transaction when a transaction is active'   ...

 
forum_thread

EntityManager.refresh takes a long time

EntityManager.refresh takes a long time for entity object Person in this code: ... code: logger. log ( Level. INFO , "begin select for person " + new Date ( ) . toString ... { logger. log ( Level. INFO , "begin refresh for person = " + person + " " + ...

 
api-jdo

begin()

Begin a transaction.(Method of javax.jdo.Transaction)

 
manual

Storing JPA Entity Objects

Explains how to use JPA to store (persist) entity objects in the database.... See JavaDoc Reference Page... ( ) . begin begin() EntityTransaction's method Start a resource transaction. ...

 
manual

CRUD Database Operations with JPA

Shows how to use Java/JPA to store, retrieve, update & delete.... See JavaDoc Reference Page... ( ) . begin begin() EntityTransaction's method Start a resource transaction. ...