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18

Schema Update

The <schema> configuration element supports renaming packages, classes and fields in ObjectDB ... refactoring. Only these schema changes are specified in the configuration file. As explained in ... with persistable classes that have been renamed or moved in the IDE, with no matching schema configuration
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JPA / JDO Class Enhancer

>      <configuration>      <mainClass>com.objectdb.Enhancer</mainClass>        <!-- List ... .y.b.*</argument>     </arguments>   </configuration>   </plugin>    ... </plugins ... > Preferences > Java > Installed JREs > Edit > Default VM Arguments or for a specific run configuration
18

Database Server

>  :  specify a configuration file explicitly -port <port>  :  override configuration's server port ... .Server start The Server configuration is loaded automatically as explained in chapter 6. This can be overridden by specifying a configuration path explicitly on the command line: > java com.objectdb
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Database Management Settings

The <database> configuration element specifies back end (database engine) settings that are relevant on the server side and in embedded mode. The default configuration file contains the following ... can be specified in the same configuration. This way the same configuration file (with multiple
16

Shared (L2) Entity Cache

The shared (L2) cache is configured in three scopes: Globally in the ObjectDB configuration ... Configuration The shared cache size is specified in the ObjectDB configuration:     <cache ... level2="0mb
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ObjectDB Object Database Features

. Connection Pooling Automatic connection pool managed by EntityManagerFactory. Configurable - minimum/maximum ... calculations. Lazy/Eager Loading Automatic pre-loading optimizations. Configurable JPA eager/lazy fetch and JPA query FETCH JOIN. Configurable JDO fetch groups. Ease of Use and Learning ObjectDB
3

Spring MVC JPA Tutorial - IntelliJ Project

). Define Run Configuration: Select Run > Edit Configurations, click the + icon and select Tomcat ... + > Artifact... > Guestbook:war and click OK. Click OK again to close the Configurations dialog box. Run the project in IntelliJ IDEA: Select the new run configuration at the toolbar and click
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Step 6: Set the Spring XML

of the Spring dispatcher servlet to the web.xml configuration file and to configure that servlet using another xml configuration file. Open the web.xml file (under src/main/webapp/WEB-INF) in a text editor (by ... suffix to the Spring dispatcher servlet. Additional spring configuration is set in another XML file
3

Step 6: Set the Spring XML

of the Spring dispatcher servlet to the web.xml configuration file and to configure that servlet using another xml configuration file. Open the web.xml file (under Web Pages > WEB-INF) in a text editor (by right ... dispatcher servlet. Additional spring configuration is set in another XML file (whose name is derived from
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JPA Web App Tutorial - IntelliJ Project

separately). Define Run Configuration: Select Run > Edit Configurations, click the + icon ... the Configurations dialog box. Run the project in IntelliJ IDEA: Select the new run configuration at the toolbar

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.

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