ObjectDB ObjectDB

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JPA Entity Fields

maintains a version number for every entity object. The initial version of a new entity object
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Server Configuration

is listening for new connections. Usually the default port 6136 should be specified. If another port
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Database Replication and Clustering

, under the server data root directory. Starting a new replication of an existing master database
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Detached Entity Objects

. same type and primary key). If the EntityManager does not manage such an entity object yet a new
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Logical Operators in JPQL and Criteria API

instances) and return a new Predicate instance: Predicate p1 = cb.and(isInUN, isInEU); // Member
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Is ObjectDB better than Object Relational Mapping (ORM)?

As noted above, using ObjectDB instead of a relational database and ORM combination is easier and leads to better performance. ORM tools, however, are very useful where the use of a relational database is mandatory (e.g. as a result of a customer request or when a new application is developed
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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
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Spring MVC JPA Tutorial - IntelliJ Project

. Run the project in IntelliJ IDEA: Select the new run configuration at the toolbar and click
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Java EE JPA Tutorial - Maven Project

The Java EE Web Application tutorial provides step by step instructions on how to build a simple Java/JPA database driven web application (for GlassFish 3/ JBoss 6) in Eclipse or NetBeans. Building a new application step by step is an effective way to learn - but if you prefer, you may download
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Step 4: Run the Application

) When you run the application for the first time, a new ObjectDB database file is generated in

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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