DB – Gene De Lisa

Spring 3, Hibernate JPA, Tomcat transactions

I tried to deploy a webapp that uses Spring 3, JPA with the Hibernate implementation and Tomcat. There are domain classes with a DAO layer which is called from the…

Gene De Lisa May 24, 2011

Hibernate JPA Spring Framework

Spring STS 2.6 JPA template project

Here are a few tips on using the JPA project template included in the Eclipse based SpringSource Tool Suite (STS) (currently at version 2.6) which is a free download from…

Gene De Lisa April 20, 2011

JPA Spring Framework

Spring, BasicDataSource and OpenJPA

So you want to use Spring with commons BasicDataSource and OpenJPA? There is an interesting gotcha. Let's start with just the DriverManager DataSource for comparison. In your spring context you…

Gene De Lisa July 15, 2009

JPA Websphere

Multiple Persistence Units – Websphere v7, OpenJPA

Want to do something exotic like specifying two persistence units in your persistence.xml file? Perhaps one local and one JTA managed. Maybe even go whole hog and do that to…

Gene De Lisa July 8, 2009

DB Spring Framework Testing

Spring and Transactions

I've been taking a legacy codebase, putting testing in place and refactoring. For DB access I retrofitted the persistence classes to be injected via Spring with a DataSource instead of…

Gene De Lisa April 8, 2008

DB News Weblogic

Oh My, Oracle and Sun are buying

Sun Microsystems Announces Agreement to Acquire MySQL, Developer of the World's Most Popular Open Source Database And then Oracle announces that it's buying BEA. (Will it become BEAL? Bill, Ed,…

Gene De Lisa January 18, 2008

IDE JPA

Europa woes with JPA and Dali

I was looking forward to the Europa Eclipse release. There are nice things included. But,... For an all-in-one jee download you also had to go to the update manager to…

Gene De Lisa July 6, 2007

DB Eclipse

Run hsqldb from Eclipse

Introduction You may be running HSQLDB from an ANT script or a batch file. You can create an Eclipse run configuration to start and stop the HSQLDB server from within…

Gene De Lisa March 7, 2006