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59

What is ObjectDB?

ObjectDB is an Object Oriented Database Management System (ODBMS). It provides all the standard database management services (storage and retrieval, transactions, lock management, query processing ... objects (and graphs of objects) in an ObjectDB database directly. There's no need to define tables or
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Database Transaction Replayer

can apply recorded database operations on a matching database backup (if available). This ability is useful for two different purposes: It enables recovery from a database failure by replaying ... & Recording Files When recording is enabled, ObjectDB maintains for every database file a recording
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Database Server

ObjectDB Server is a tool that manages ObjectDB databases in a separate dedicated process, making these databases accessible to client applications in other processes including ones on other remote ... are: The ability to access and use databases from different processes simultaneously. The ability to access
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Database Connection using JPA

A connection to a database is represented by an EntityManager instance, which also provides functionality for performing operations on a database. Many applications require multiple database connections ... database connection, using a separate EntityManager instance, for every HTTP request. The main role
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Database Replication and Clustering

, the same database is managed on multiple machines (nodes), possibly in different geographic locations ... master-slave replication, the master node manages the main (master) database, which supports Read / Write operations. The other (slave) nodes in the cluster manage identical copies of the same database
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Chapter 5 - Database Tools and Utilities

Describes the ObjectDB object database tools - the Explorer, the Server, the Enhancer, the Doctor and the Replayer.
31

Paths and Types in JPQL and Criteria API

over all the Country objects in the database. For a country with no capital city, such as Nauru, c.capital ... of all the entity objects in the database, excluding Country entity objects: SELECT COUNT(e) FROM ... is an extension of ObjectDB that can be used to iterate over all the entity objects in the database
7

JPA Tutorials

The following tutorials demonstrate how to develop database driven applications using JPA and the ObjectDB ODBMS (Object Oriented Database Management System). Console JPA Tutorial The Quick Start tutorial demonstrates how to use ObjectDB and JPA in a console application: Quick Start with JPA
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[ODB1] Chapter 9 - ObjectDB Explorer

database objects visually, navigate among them and execute queries is very valuable during development ... information about the database and the bottom sub window displays a list of root objects that the database ... visual database tools. Every row in the table represents a single object, every column represents
3

[ODB1] Chapter 5 - JDO Connections

storing, retrieving, updating and deleting database objects, are provided in the next chapter (Chapter ... Lock Management ObjectDB manages an automatic lock mechanism in order to prevent a database object ... the database a READ lock on that object is obtained by the PersistenceManager. On every attempt to modify

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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