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Database Connection using JPA

functionality for performing operations on a database. Many applications require multiple database connections during their lifetime. For instance, in a web application it is common to establish a separate ... , but it is a one time operation. Once constructed, it can serve the entire application. Operations that modify

Online Backup

while the database is offline (i.e. when it is not open in an ObjectDB server and not in use by any application ... applications that provide round the clock service (24/7/365) such as most web applications. Starting Online ... of the ObjectDB home directory (and in client-server mode a subdirectory of the ObjectDB home directory

JPA Tutorials

on full application servers (such as Oracle GlassFish, Red Hat JBoss, IBM WebSphere and Oracle WebLogic ... application uses Java EE 6 EJB (session beans) it requires a full Java EE 6 application server, such as ... The following tutorials demonstrate how to develop database driven applications using JPA

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 the [Project Explorer] window), selecting Run As > Run on Server, selecting the Tomcat 6.0 server ... > Run on Server) and follow the instructions. Alternatively you can run the web application using

JPA Web App Tutorial - Maven Project

The JPA Web Application tutorial provides step by step instructions on how to build a simple Java/JPA database driven web application (for Tomcat / Jetty) in Eclipse or NetBeans. Building a new application step by step is an effective way to learn - but if you prefer, you may download and run


Static Field javax.jdo.Constants String OPTION_CHANGE_APPLICATION_IDENTITY "javax.jdo.option.ChangeApplicationIdentity" Since: JDO 2.1 See Also: PersistenceManagerFactory.supportedOptions()


Static Field javax.jdo.Constants String OPTION_APPLICATION_IDENTITY "javax.jdo.option.ApplicationIdentity" Since: JDO 2.1 See Also: PersistenceManagerFactory.supportedOptions()


Enum Constant javax.jdo.annotations.IdentityType APPLICATION Since: JDO 2.1


Static Field javax.jdo.Constants String PMF_ATTRIBUTE_SERVER_TIME_ZONE_ID The name of the persistence manager factory element's "server-time-zone-id" attribute. Since: JDO 2.1


Static Field javax.jdo.Constants String PROPERTY_SERVER_TIME_ZONE_ID Mapping "javax.jdo.option.ServerTimeZoneID" Since: JDO 2.1

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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