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Is ObjectDB better than Object Relational Mapping (ORM)?

As noted above, using ObjectDB instead of a relational database and ORM combination is easier and leads to better performance. ORM tools, however, are very useful where the use of a relational database is mandatory (e.g. as a result of a customer request or when a new application is developed

What is ObjectDB?

convert objects to records/records to objects using SQL or ORM, as opposed to when using relational database systems (RDBMS), such as Oracle, DB2, SQL Server or MySQL.


500 companies as well as smaller companies and start-ups, governments and defence forces

JPA Annotations for Classes

policy (as explained in chapter 3): Another JPA class annotation defines an ID class: ID classes are useful in representing composite primary keys as explained in the Primary Key section of the ObjectDB manual.

Step 1: Create a Web Project

(e.g. Guestbook). Select Apache Tomcat v6.0 as the Target runtime. Note: You may have to add Tomcat 6 as a new server by clicking the New Runtime... button. Follow the instructions and specify

Step 1: Create a Maven Web Project

that the Create a simple project checkbox is disabled and click Next. Enter maven-archetype-webapp as ... is installed, by right clicking the project node and checking that the Run As > Run on Server command

Spring MVC JPA Tutorial - Eclipse Project

... > Maven > Existing Maven Projects and click Next. Select the guestbook-spring directory as Root ... click the project node and select Run As > Run On Server. (this command is available only if Maven

Spring MVC and JPA Tutorial

that has signed the guestbook is represented as Guest JPA entity object, and all Guest entity objects are stored in an ObjectDB database. This tutorial is available in the following versions: In addition, the demonstrated application is available as a Maven project:

Step 4: Add a Servlet Class

... Enter GuestServlet as the class name - use exactly that case sensitive class name. The Java ... page that will serve as the application view and will produce the guestbook output.

Java EE 6 JPA Tutorial - Eclipse Project

directory as Root Directory and press ENTER. Select the project and click Finish. Run the project in Eclipse: Right click the project node and select Run As > Run On Server. (this command is available

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
  3. Follow the Tutorials
  4. View or post in the forum
  5. Search or file an issue
  6. Contact support