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Questions tagged [objectdb]

Fast Object Database for Java - with JPA/JDO support

ObjectDB is a powerful object oriented database management system (ODBMS). It is compact, reliable, easy to use and extremely fast. ObjectDB provides all the standard 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:

  • 100% pure Java Object Oriented Database Management System (ODBMS).
  • No proprietary API - managed only by standard Java APIs (JPA 2 / JDO 2).
  • Extremely fast - faster than any competitive JPA / JDO product.
  • Suitable for database files ranging from kilobytes to terabytes.
  • Supports both Client-Server mode and Embedded (in process) mode.
  • Single JAR with no external dependencies.
  • Database is stored as a single file.
  • Advanced querying and indexing capabilities.
  • Effective in heavy loaded multi user environment.
  • Can easily be embedded in applications of any type and size.
  • Tested with Tomcat, Jetty, GlassFish, JBoss and Spring.

See ObjectDB's features in more detail...

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How to have a distribuited GWT application with ObjectDB and Spring?

I've been developing a GwT application as a project for my computer science faculty. It consists in 2 or 3 hosts running it, each of one has a client and a server and it is designed for a company renting cars which has 2 or 3 different points in a…
SagittariusA
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JPA ObjectDB: compile and use it

I'm trying to use JPA implementation called ObjectDB. I have downloaded jar files for ObjectDB and included them in my project with Eclipse. These are the two classes: package tutorial; import java.io.Serializable; import…
SagittariusA
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ObjectDB relation ships

I am trying to add a relationship "OneToMany" to a database i am creating to test if ObjectDB is any good for me. what I have tried so far: @Entity public class Parent { @Id private int parentID; private int childFK; Set…
Sagarmichael
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How to dynamical specify table fields name in objectDB on any other DB

I am using objectdb with jpa2. I want to let my users specify the fields of my entity. How do I do that? For example say I have an entity named Animal and I want the user to be the one specifying the name of the fields, all Strings. How would I do…
kasavbere
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jpa criteria seems to work (or not) depending on whether db is mysql or objectdb

When I use JPA with MySQL, the below query works fine. But when I use it with ObjectDB, it throws the exception below. public Friendship getFriendship(String username) { CriteriaBuilder criteriaBuilder = em.getCriteriaBuilder(); …
kasavbere
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Glassfish open source edition 3.0.1 HTTP Status 500, EJBException

I am using this tutorial to learn JavaEE web app. I am using eclipse indigo for Java EE, objectdb-2.4.2_02, glassfish 3.1.2 on windows xp. When I run the program, the embedded browser opens page with this status & printing javax.ejb.EJBException. I…
enterprize
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Grails with ObjectDB

Is it possible to use ObjectDB with Grails? Or in other words, do I have to use Hibernate when i developing applications with grails?
bennyl
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Class with PersistenceCapable annotation gets Attempt to store an instance of a non persistable type

Using ObjectDB [ObjectDB 2.4.1] javax.jdo.JDOUserException Attempt to store an instance of a non persistable type com.A @PersistenceCapable public abstract class B { ... @Embedded protected com.A a = new A(); } Unfortunately we have been using…
dc360
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Query in objectdb

I have to implement a query in objectdb and have very little idea. The problem is to write a query which Returns the collection of all laptops each of which has at least one other laptop preinstalled with the same processor. My Laptop…
Nikhil Sharma
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Retrieving value from objectdb database from program

I am facing some problems while I am trying to fetch data through the program. I am using objectDB as my database. Also, my database is already set up and I have dropped the laptop.odb file in the db folder of my objectDB installation. Also, when I…
Nikhil Sharma
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JPQL NOT EXISTS in ObjectDB

I am trying to migrate my Spring project from Hibernate to ObjectDB. On ObjectDB page, they say that ObjectDB is 100% compatible with JPA. However, I have problem with this JPQL query: SELECT e FROM Employee e WHERE e.present = false AND NOT EXISTS…
Milan Fabian
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Java: JPA: ObjectDB: pre-detach loading: why retrieval by "navigation and access" sometimes not working in if statement

This question is spawned from this ObjectDB forum posting, in the hope that the wider JPA community may be able to offer some insights. Some aspects may be specific to the ObjectDB implementation of JPA objectdb-2.6.3_04 JDK1.7 VM option at runtime:…
Webel IT Australia - upvoter
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updating a record in jpa using parameters

how can i update a single record in jpa using jpql // Person p = em.find(Person.class, 1); // p.setState_Of_Origin("Plateau"); // em.merge(p); for the above you have to know the user id, which doesn't help much. I used the…
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