Fast Object Database for Java - with JPA/JDO support

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145

Obtaining a JPA Database Connection

In JPA a database connection is represented by the EntityManager interface. Therefore, in order to manipulate an ObjectDB database we need an EntityManager instance. Operations that modify database ... of EntityManagerFactory that represents the relevant database and then we can use that factory instance
143

ObjectDB - Object Database for Java (JPA/JDO)

Boost your application database performance. Database performance is critical as ... . Using a relational database management system (RDBMS) to store and retrieve Java objects requires slow conversions between graphs of Java objects and flat database table rows. Object Relational Mapping
140

About ObjectDB Database

ObjectDB Object Database ObjectDB is a powerful Object-Oriented Database Management System (ODBMS ... database management services (storage and retrieval, transactions, lock management, query processing, etc.) but in a way that makes development easier and applications faster. ObjectDB Database Key Features
138

Is ObjectDB better than competing object databases?

. However, you should consider the following points when doing your own objective comparison of object databases: ObjectDB is unique in supporting the standard APIs. It is the only object database with built in support ... Data Objects (JDO) API than competing object databases. By using a standard API such as JPA
136

Is ObjectDB a NoSQL Database?

ObjectDB is a unique NoSQL database. It doesn't have the known disadvantages and limitations ... , but they are easier to use in object oriented languages such as Java. In addition, unlike most other NoSQL databases ... can be used in applications that cannot use conventional non ACID NoSQL databases because of a requirement for a very high level of consistency.
136

Can I use ObjectDB to access a relational database?

To access relational databases using the Java Persistence API (JPA) you will need an Object Relational Mapping (ORM) tool, such as Hibernate, TopLink, EclipseLink, Open JPA or DataNucleus ... standalone Object Database Management System (ODBMS) and not an ORM tool, so it is not intended and cannot be used to access other database management systems.
135

Database Schema Evolution

entity class. This is done automatically in memory each time the entity object is loaded. The database object is only updated to the new schema when that entity object is stored to the database
130

About ObjectDB Database

All about ObjectDB Database in Java/JPA database - explanations, examples, references, links and related information.
36

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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[ODB1] Chapter 6 - Persistent Objects

This chapter describes how to use ObjectDB to manage database objects. 6.1 Making Objects ... database content, or a transient object, i.e. not related to any database. Storing Objects Explicitly ... is automatically stored in the database when the transaction is committed (unless it is being deleted

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.

Need Help?

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