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.
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sample program. If an unexpected exception (e.g. NullPointerException or ClassCastException) is thrown by ObjectDB - posting the full stack trace with no sample program (using the Issue Tracking system) may be sufficient to locate the problem. In most other cases - a sample program may be required
Sample JDO Architecture for Follow Up Questions
> <entity-listeners> <entity-listener class="samples.MyDefaultListener1" /> <entity-listener class="samples.MyDefaultListener2" /> </entity-listeners> </persistence
Tutorial These tutorials explain how to run the sample program. You can easily start your own ObjectDB/JPA projects simply by modifying this sample program. Reading the Next Chapters
>packedEntity.jar</jar-file> <class>sample.MyEntity1</class> <class>sample.MyEntity2</class
This chapter introduces basic ObjectDB and JDO concepts, using two sample programs. We start with the HelloWorld sample program, which is not JDO portable because it uses some ObjectDB extensions, but it is a good sample to start with because of its simplicity. We then proceed with the JDO Person
. The sample application is also explained in details in Chapter 1 of the ObjectDB Manual, but if you prefer to start by running a live sample application in your IDE, you should be able to follow this tutorial
instructions on how to create the sample applications. In addition, the sample applications
Opening a Spring MVC JPA Maven web application project in the NetBeans IDE.
Opening a Spring MVC JPA Maven web application project in the Eclipse IDE.