About dependency

page

About ObjectDB Database

ObjectDB is a powerful object oriented database management system (ODBMS). It is compact, reliable, easy to use and extremely fast. ObjectDB Object Database 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 ret ...

 
forum_thread

Is 2 level cache in use?

Hi, Is there any way to check, if 2 level cache is in use? Right now I've done two things: 1. objectdb.conf with cache size is placed in WEB-INF directory of my web application. 2. persistence.xml was modified with: #1 2011-05-06 11:55 Hi, Is there any way to check, if 2 level cache is in use? Right now I've done two things: 1. ...

 
forum_thread

WebSphere Liberty Configuration

Hi! I've been trying to get ObjectDB configured with WebSphere Liberty server. I have been able to get the sample app running in TomCat but when I run the jee version of the guestbook in WebSphere I get a combination of errors depending on how I tweak the configuration the most promising error I get is this one: #1 2016-08-09 14:30 Hi! I've been trying to get ObjectDB configured with WebSphere Liberty server. I have been ab ...

 
tutorial

Getting Started with JPA and Eclipse

Getting started tutorial for quick start with using Java Persistence API (JPA) in Eclipse. This is the Eclipse version of the Quick Start with JPA tutorial. It demonstrates how to create and run a simple JPA application in Eclipse. The demonstrated application uses JPA to store and retrieve simple Point entity objects, where each ...

 
tutorial

Step 1: Install BIRT and ObjectDB Driver

Explains how to install the BIRT and ObjectDB Eclipse features/plugins. We start by installing the BIRT development environment and the ObjectDB data source driver. Installing BIRT Choose one of the following options to install the BIRT development environment: Download and install the co ...

 
forum_thread

Processing thread count for 8-core server

In reference to the information here:  http://www.objectdb.com/java/jpa/setting/database#The_processing_element_   We are working with an 8-core processor.  The recommended thread count is "more than the number of cores but not too many."  What would be an appropriate number of threads for the processing thread pool in order to get good performance for our 8-core server? #1 2012-05-14 15:18 In reference to the information here:  http://www.objectdb.com/java/jpa/setting/database#The_processing_el ...

 
forum_thread

Should I Avoid Compressing Database Files?

These are questions asked in the context of the proposed architecture described in the forum thread titled, "Sample JDO Architecture for Follow Up Questions".   I saw a forum statement, which I can't find now, that led me to believe that ObjectDB database files do not compress well (in general, my architecture usage may be different).  I plan on NOT compressing NOR trying to reclaim unused space in ObjectDB database files when I back them up or restore them from a backup. #1 2016-07-25 16:17 These are questions asked in the context of the proposed architecture described in the forum thread titled, "Samp ...

 
api-jpa

MapKeyColumn.name

(Optional) The name of the map key column.(Annotation Element of javax.persistence.MapKeyColumn)

 
api-jpa

lock(entity, lockMode, properties)

Lock an entity instance that is contained in the persistence context with the specified lock mode type and with specified properties.(Method of javax.persistence.EntityManager)

 
api-jpa

find(entityClass, primaryKey, lockMode, properties)

Find by primary key and lock, using the specified properties.(Method of javax.persistence.EntityManager)