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Step 2: Define a JPA Entity Class

To store objects in an ObjectDB database using JPA we need to define an entity class: Open the [New Java Class] dialog box, e.g. by right clicking the project node (in the [Package Explorer] window ... . The next step is adding a context listener class that will manage a JPA's EntityManagerFactory representing the ObjectDB database.
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Step 4: Run the Application

You can run the application now by right clicking the Main node (in the [Projects] window ... an additional 1,000 objects. You can view the content of the database file by opening it in the ObjectDB Explorer: This is the end of the tutorial. Learn more about ObjectDB and JPA by reading the Manual.
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Step 4: Run the Application

You can now run the application by right clicking the Main.java file (in the [Package Explorer ... of the database file by opening it in the ObjectDB Explorer: This is the end of the Eclipse JPA tutorial. Learn more about ObjectDB and JPA by reading the Manual.
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Step 6: Run the Java EE 6 Application

You can run the application now by right clicking the GuestServlet node (in the [Projects] window), selecting Run File, and then clicking OK (no need to change the servlet execution URI ... the database file in ObjectDB Explorer: This is the end of the tutorial. Learn more about ObjectDB and JPA by reading the Manual.
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Step 6: Run the Web Application

You can run the application now by right clicking the GuestServlet node (in the [Projects] window), selecting Run File, and then clicking OK (no need to change the servlet execution URI ... of the tutorial. Learn more about ObjectDB and JPA by reading the Manual.
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Step 7: Run the Spring Web App

as a server in your NetBeans - you should be able to run your application now by selecting Run > Run ... ) is automatically enabled without specifying a Java agent. This is the end of the tutorial. Learn more about ObjectDB and JPA by reading the Manual.
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Step 6: Run the Java EE 6 Application

You can run the application now by right clicking the GuestServlet node (in the [Project Explorer] window) and selecting Run As > Run on Server > Finish: Since we are using ObjectDB in embedded mode ... : This is the end of the tutorial. Learn more about ObjectDB and JPA by reading the Manual.
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Step 7: Run the Spring Web App

a server in your Eclipse - you can run the application now by right clicking the project node (in ... Explorer: This is the end of the tutorial. Learn more about ObjectDB and JPA by reading the Manual.
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Step 6: Run the Web Application

You can run the application now by right clicking the GuestServlet node (in the [Project Explorer] window) and selecting Run As > Run on Server > Finish: Since we are using ObjectDB in embedded mode ... the database file in ObjectDB Explorer: This is the end of the tutorial. Learn more about ObjectDB and JPA by reading the Manual.
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Step 3: Add a Main Class

In this step we will add code to the Main class (that was generated with the project) in order to store Point objects in the database and then retrieve them from the database. Use copy and paste ... is provided in the Quick Tour chapter of the ObjectDB Manual. The next step (and the last in this tutorial) is running the project.

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
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Which JPA is Faster?

 

See a comparison of Hibernate, EclipseLink, OpenJPA, DataNucleus, MySQL, PostgreSQL, Derby, HSQLDB, DB4O by Versant, H2 Database, SQLite and ObjectDB

in the JPA Benchmark.

Copyright © 2003, 2010, 2023  ObjectDB Software, all rights reserved. The JPA API Reference Documentation (JavaDoc) on this website is derived with some adjustments from the open source JPA 2 RI (EclipseLink) and is available under the terms of the Eclipse Public License, v. 1.0 and Eclipse Distribution License, v. 1.0. The JDO API Reference Documentation (JavaDoc) on this website is derived with some adjustments from the JDO 2.2 API and is available under the terms of the Apache License, v. 2.0. Images on this website are available under these licecnes. Documentation on this website explains how to use JPA in the context of the ObjectDB Object Database but mostly relevant also for ORM JPA implementations, such as Hibernate (and HQL), EclipseLink, TopLink, OpenJPA and DataNucleus. ObjectDB is not an ORM JPA implementation but an Object Database (ODBMS) for Java with built in JPA 2 support.