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Step 3: Define an EJB Session Bean

Explains how to define an EJB session bean in an Eclipse Java EE 6 web application.

Step 3: Add a Context Listener Class

Explains how to add a servlet context listener (to manage an application scope EntityManagerFactory) in an Eclipse Web Application.

Step 2: Entity Class and Persistence Unit

To store objects in an ObjectDB database using JPA we need to define an entity class:


Step 3: Define a Spring DAO Component

Explains how to define a JPA DAO component (bean) in an Eclipse Spring MVC JPA web application project.

Step 2: Define a JPA Entity Class

Explains how to define a JPA entity class in an Eclipse Web Application.

Step 1: Create a Java EE 6 Web Project

Explains how to create an Eclipse Java EE 6 (J2EE) project with ObjectDB/JPA support.

How to resolve 404 errors with Eclipse/Maven Spring MVC

I have created a project as guided by www.objectdb.com/tutorial/jpa/eclipse/spring/run. When I ... my browser to localhost:8080/Guestbook/ it works as your tutorial says! However, when I use Eclipse Juno ... so. Can someone help me! I've tried a lot of other tutorials and this is the only I can get to work

Saving custom list which implements java.util.List fails

) and encountered the following problem: I took the Point-example from the tutorial and added a list ... of a non persistable type tutorial.MyList - field tutorial.MyPoint.list (error 613) at com.objectdb.jpa.EMImpl.commit(EMImpl.java:290) at tutorial.TestMyList.main(TestMyList.java:21) Caused by: javax

EntityManagerFactory Fails To Swtich Over To Slave When Master Is Unavailable

.EMF.createEntityManager(EMF.java:253) at tutorial.Main.main(Main.java:22) Caused by: com.objectdb ... " />         Test Code package tutorial; import javax.persistence.*; import java ... ");   System.out.println("Average X: " + q2.getSingleResult()); } } package tutorial; import java.io

Spring MVC Errors

I try to import the project from the tutorial but when doing so I get errors: 1. http://i.imgur.com ... Tutorial GuestBook... 3.) I'm using Tomcat and I don't get the last part of the tutorial ... decided to search objectDB site to search for a solution and then I found that spring Tutorial

Getting Started

ObjectDB is very easy to use. Follow the Getting Started Tutorial and the Quick Tour manual chapter and in minutes you may be able to write and run first Java programs against ObjectDB.

Prior knowledge or experience in database programming (SQL, JDBC, ORM, JPA, etc.) is not required, but some background in using the Java language is essential.

Need Help?

  1. Search ObjectDB website
  2. Read the FAQ
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  5. Search or file an issue
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