Latest Articles

InvalidIsolationLevelException: Standard JPA does not support custom isolation levels - use a special JpaDialect for your JPA implementation

02 January 2014

In this article we will see how to fix InvalidIsolationLevelException: Standard JPA does not support custom isolation levels - use a special JpaDialect for your JPA implementation.

As the exception clearly states, Standard JPA does not support custom isolation levels, so when we use an isolation level that is different from the default we will get the following exception: Inval... Read more

Spring - Change transaction isolation level example

02 January 2014

In this article we will see how to effectively change Spring transaction isolation level, together with JPA, while avoiding InvalidIsolationLevelException: Standard JPA does not support custom isolation levels - use a special JpaDialect for your JPA implementation.

As we have seen previously on Spring transaction isolation level tutorial, Spring supports the definition of the transaction isolation level in service methods. What we might not expect at first is th... Read more

java jpa spring tx

Spring + JPA + Hibernate example

27 December 2013

In this tutorial we will configure Spring with JPA using Hibernate as our JPA implementation.

Spring framework supports the persistence layer to be fully implemented through JPA. In this article we will see how to configure the Spring needed components to perform persistence over standard JPA,... Read more

hibernate java jpa spring tx

Java EE EJB transaction propagation (@TransactionAttribute) tutorial

08 July 2013

In this tutorial we will see the available transaction propagation behaviours provided by the EJB container using @TransactionAttribute annotation.

While dealing with Container Managed Transactions (CMT) in EJB, the application developer is able to declaratively define how an arbitrary call to an EJB method should behave in terms of transaction p... Read more

ejb java java-ee jpa jta tx

Spring JTA multiple resource transactions in Tomcat with Atomikos example

17 June 2013

In this tutorial you will learn how to configure a JTA transaction manager outside an enterprise container - using the Spring framework and Atomikos, both deployed in Tomcat - in order to implement distributed multiple resource (or XA) transactions.

Distributed multiple resource transactions in Java are usually accomplished by resorting to the Java Transaction API (JTA). One usually delegates the task of distributed transaction coordination to an... Read more

atomikos hibernate java jpa jta spring tomcat tx xa

Spring transaction isolation level tutorial

30 January 2013

In this tutorial you will learn about the transaction isolation level provided by the Spring framework.

Transaction isolation level is a concept that is not exclusive to the Spring framework. It is applied to transactions in general and is directly related with the ACID transaction properties. Isolation... Read more

java spring tx

Spring transaction propagation tutorial

26 January 2013

In this tutorial you will learn about the transaction propagation behaviors provided by the Spring framework.

While dealing with Spring managed transactions the developer is able to specify how the transactions should behave in terms of propagation. In other words the developer has the ability to decide how t... Read more

java spring tx

Spring with Hibernate persistence and transactions example

02 January 2013

In this tutorial you will learn how to implement Hibernate persistence using the Spring framework in a transactional fashion.

After reading this tutorial you will be able to implement Hibernate persistence using Spring framework. Additionally you will also use Spring Hibernate transaction manager to manage all the transactio... Read more

hibernate java jpa spring tx

About the author

Gonçalo Marques is a Software Engineer with several years of experience in software development and architecture definition. During this period his main focus was delivering software solutions in banking, telecommunications and governmental areas. He created the Bytes Lounge website with one ultimate goal: share his knowledge with the software development community. His main area of expertise is Java and open source.

GitHub profile: https://github.com/gonmarques

He is also the author of the WiFi File Browser Android application: