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14

General Settings and Logging

The <general> configuration element specifies ObjectDB settings that are relevant to both the server side and the client side. The default configuration file contains the following <general> element ... configuration above, represents the entire ObjectDB system. Additional <logger> elements
11

Database Transaction Replayer

ObjectDB can record its internal engine operations in special binary recording (journal) files. Recording is enabled by default and can be disabled in the configuration. The ObjectDB Replayer tool ... on a different physical device by setting the path attribute in the configuration. The recording directory
11

Database Replication and Clustering

the configuration: <server>     <connection port="6001" max="100" />     <data path="$objectdb/db ... The configuration above demonstrates a situation in which the master database is managed by a server
11

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.
11

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
11

Server User List

The <users> configuration element lists the users that are allowed to access the ObjectDB Server and specifies their specific settings (username, password, permissions, quota). The default configuration file contains the following <users> element: <users> <user username="admin" password="admin
11

Working with JPA Entity Objects

the Configuration chapter. By default, managed entity objects that have not been modified or removed ... it and it is automatically removed from the persistence context. ObjectDB can be configured to use strong references or
3

Java EE 6 JPA Tutorial - IntelliJ Project

has to be downloaded separately). Define Run Configuration: Select Run > Edit Configurations, click ... the Configurations dialog box. Run the project in IntelliJ IDEA: Select the new run configuration
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Step 2: Entity Class and Persistence Unit

with a default persistence unit (that will be configured later). If the Finish button is disabled ... file that was added to the project (under Configuration Files). Open the persistence.xml file in
1

javax.jdo.JDOHelper

PersistenceManagerFactory configured via the standard configuration file resource "META-INF/jdoconfig.xml", using the current thread's context class loader to locate the configuration file resource(s). Get the anonymous PersistenceManagerFactory configured via the standard configuration file resource "META-INF

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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