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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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TomEE ++ and ObjectDB can not get it work

I have a DaoService which gets initialized when the app starts. public DaoService() { Map properties = new HashMap(); properties.put("javax.persistence.jdbc.user", "admin"); …
ZuzEL
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What is ObjectDB? How is it different than an ORM like Hibernate?

In ObjectDB I see that: ( here is the link. ) ObjectDB is a powerful object oriented database management system (ODBMS). I see that it implements JPA, so does it mean it is supposed to be an ORM provider? Or not? What is the difference?
Koray Tugay
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ObjectDB with JPA

I am trying to create an objectdb using JPA. The following code below is what i have done but am not sure if i have done it correctly. The entity is student and the attributes are fristname, surname etc. Would anyone know if i have set it out right…
user2279531
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Is there a way to drop a table in the explorer of objectDB?

Is there a way to drop a table in the explorer of objectDB (or is there a way to drop a table at all)? I know that I can execute a 'delete from' query, but the table is still there and it's annoying to me because I created a lot of test entities and…
0x56794E
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JPA managed entities vs JavaFX properties

My current project is done using JavaFX. I use properties to bind (bidirectionnal) view fields to bean (with BeanPathAdapter of JFXtras). I choose to use JPA with ObjectDB as model. This is the first time I use JPA in a standalone project and here…
Ludovic Guillaume
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objectdb vs hibernate and mysql on glassfish

every website I can find seems biased to praised objectdb over hibernate and mysql. Example, http://www.jpab.org/ObjectDB/ObjectDB/server/Hibernate/MySQL/server.html. Are there any disadvantages to using objectdb instead of hibernate and mysql for…
kasavbere
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su -session-command error

i have a very simple and annoying problem, i'm trying to start my database as a specific user, but *su --session-comman*d fail to…
LottaLava
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MySQL to ObjectDB Migration

A maven JEE project using JSF, JPA (EclipseLink 2.3) is using MySQL comminity edition as the database. With the size of the database exceeding 20GB, there are database related peformance issues. As a solution, I am going to use ObjectDB. I am doing…
Niluka Gunasekara
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Tomcat and Objectdb (Through GWT/Rpc): java.lang.NoClassDefFoundError

I have a GWT 2.3 web app using Objectdb via Rpc. In the embedded mode in eclipse (with Jetty) everything runs fine. When i try to deploy the app on a Tomcat6 Server I get the following Error: 29.08.2011 16:07:40…
Simson
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UserException: Field not found

in the main method: Iam only trying to store some objects in objectdb file in the root directory I want to know why the field in insurance class is not located in the class package com.example.medicalcenter; import…
Adam Bazzal
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Why do I get a JDOUserException?

I don't understand why I keep getting a JDOUserException. The error message I get is Exception in thread "main" [ObjectDB 2.8.5] javax.jdo.JDOUserException Failed to create a new file 'C:\Program Files\objectdb-2.8.5\log\odb20210506.log' (error…
asher chapman
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Is there a kind of ORDBMS where I can create classes on the fly?

It is a bit hard to explain, what I am looking for: Searching for a DB which stores objects (similar to e.g. https://www.objectdb.com/) but where classes are not defined by the Java code but in the DB itself - on the fly. So that there it shall be…
Andreas
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JPA - How to efficiently get all children of a parent by JPA?

Having a parent and child class as below @Entity class Parent { @Id Long id; @OneToMany(orphanRemoval = true, cascade = CascadeType.ALL) List children; } @Embeddable class Child{ @Id Long id; // child does not have…
Abdullah Arslan
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I have a problem with an UPDATE command when i put the WHERE clause it's crash in objectDB

I need to store the laboratory points for a certain student, the first Select works good but when i try to update the new value for lab_points with WHERE clause the program crash. When i skip the WHERE the program run fine but all values are…
Ciprian Bodnar
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Objectdb - dynamic search bar

I'm trying to have a dynamic search bar in which you can type and it will update a ListView with the results of the search. What I have so far is a listener on the TextField and a query set to run each time the search bar is modified: …
hego64
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