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4

Entity Management Settings

The <entities> configuration element specifies front end settings that are relevant on the client side and in embedded mode. The default configuration file contains the following <entities> element: <entities> <enhancement agent="true" reflection="warning" /> <cache ref="weak" level2="0mb
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Posting Sample Code

. Whenever possible: Use a single Java file with one main class + static inner classes for entity
4

Database Schema Evolution

explicitly in the configuration to avoid data loss. The Schema Update section in chapter 6 explains how to specify such changes in the configuration file.
4

Index Definition

structure that ObjectDB maintains in the file system rather than in memory. The keys of the BTree
0

Step 4: Add a Controller Class

replace the content of the new source file with the following code: package guest; import javax.servlet
0

JPA Web App Tutorial - Maven Project

The current directory should be guestbook-web (containing the pom.xml file) and port 8080 has to be available
0

Step 4: Add a Servlet Class

of the new source file with the following code: package guest; import java.io.IOException; import
0

Step 3: Define a Spring DAO Component

the content of the new source file with the following code: package guest; import java.util.List
0

Getting Started with JPA and NetBeans

is expected to work), you only need to download and extract the ObjectDB distribution zip file
0

Getting Started with JPA and Eclipse

zip file. The distribution zip contains everything necessary (no external dependencies

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
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