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Criteria Query Selection and Results

around Expression, which adds order direction - either ascending (ASC) or descending (DESC). The CriteriaBuilder's asc and desc methods take an expression and return an ascending or descending Order

BIRT/ODA ObjectDB Driver

- either embedded (e.g. c:\points.odb) or client-server (e.g. objectdb://localhost/points.odb;user=admin ... (e.g. ObjectDB Points). Enter a data set name (e.g. Points by X) and click Next. Entry a JPQL or


/ 10 The UPDATE clause defines exactly one range variable (with or without an explicit variable name) for iteration. Multiple variables and JOIN are not supported. The SET clause defines one or

Online Backup

An ObjectDB database can be backed up by simply copying or archiving the database file while the database is offline (i.e. when it is not open in an ObjectDB server and not in use by any application ... ) that represents the connection (local or remote) to the database:     em.createQuery("objectdb backup

JPA Persistence Unit

. One persistence.xml file can include definitions for one or more persistence units. The portable way ... . Other classes have to be registered explicitly by using class elements (for single class registration) or jar

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


the Java language. Only objects that are instances of this class (or one of its subclasses) are thrown by the Java Virtual Machine or can be thrown by the Java throw statement. Similarly, only this class or one of its subclasses can be the argument type in a catch clause. Instances of two subclasses


that will be called for every new class definition or class redefinition that gets loaded by the loader ... that will be called for every new class definition or class redefinition that gets loaded by ... any classes, resources, or open URLs. Returns ClassLoader that the provider may use to load any

Step 3: Add a Context Listener Class

a ServletContextListener to perform initialization and cleanup operations: The database will be opened (or created ... . The database will be closed when the web application stops (or when the web server shuts down), by

Spring MVC JPA Tutorial - NetBeans Project

Run > Run Main Project... (or F6). Choose or define Tomcat as a server and click OK. Note: To run

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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