About settings

forum_thread

ObjectDB eclipse plugin

Hello, Creating an eclipse plugin from the downloadable objectdb.jar file DOES NOT work in the eclipse OSGi environment (at least that is my experience). Could we have a genuine eclipse plugin from ObjectDB that works? You already have a pluging that integrates Objectdb with BIRT, so it seems it should not be difficult. The downloads could now have both the eclipse plugin as well as the usual jar. Let me know what you think.   Thanks #1 2011-07-14 18:30 Hello, Creating an eclipse plugin from the downloadable objectdb.jar file DOES NOT work in the eclipse OS ...

 
forum_thread

Schema Update: class hierarchy change

Hello, we try to change the class hierarchy of an Entity. You wrote www.objectdb.com/database/forum/899 that ObjectDB support automatic schema evolution for adding and removing fields and for class hierarchy change.   But our small test failed: At first create a DataBase with one Object of MyEntity #1 2015-07-15 08:26 Hello, we try to change the class hierarchy of an Entity. You wrote www.objectdb.com/database/for ...

 
forum_thread

How the sort order (in queries) works for non english letters?

We are considering using ObjectDB in  project where target audience are czech speaking people (we are Czech company). How the sort order works for international (for us 'czech') letters? Does the ordering respects the national requirements? Thank you for clarification ... #1 2011-09-22 09:12 We are considering using ObjectDB in  project where target audience are czech speaking people (we are Czech ...

 
forum_thread

Update Entity references if we change the type of an entity

Hello, we must change (extend) our entity model and therefor we convert the type of some entities. As example (like in the attached example): We have an EntityA that have a reference to an EntityB. #1 2017-03-17 09:34 Hello, we must change (extend) our entity model and therefor we convert the type of some entities. ...

 
forum_thread

Memory consumption of empty Strings

After doing some memory related research in my program, I found a possible place for an enhancement of objectdb: My program has several entities which contain many String. Often some of these String are empty (""). To avoid unnecessary memory consumption, the String within the entities are initialized like: String firstName = ""; #1 2014-01-02 12:04 After doing some memory related research in my program, I found a possible place for an enhancement of objectdb: ...

 
forum_thread

Corrupted Database or error in ObjectDBExplorer?

Hello, we have problems when we open our Database file with the ObjectDB-Explorer (2.6.8_b8). Can you analyze the problem and tell us if its a problem of the explorer or a real problem in the Database-File? An analysis with the DB-Doctor found no problems.   We observe the error if we try to open the Tree or Table Window for com.btc.ep.analysis.test.bl.internal.dmos.RequirementBasedTestCaseImpl  (its the 9th entity)   #1 2016-10-28 13:20 Hello, we have problems when we open our Database file with the ObjectDB-Explorer (2.6.8_b8). Can ...

 
issue

InternalException caused by OOM: Metaspace

Our java server app using objectDB threw this mistake. Looks like due to OutOfMemory exception, but the app was running with -Xmx12G and before the mistake there was used 1,6G from that heap. Although Metaspace can happen independently on the heap usage I believe. Stacktrace follows: Bug Version: 2.5.5 Priority: Normal Status: Closed Replies: 1 Type:  Bug ...

 
forum_thread

RT Java application recording into 100DB run OOM after a few hours.

Hi, I am running a java application that records data from 100 feeds into 100 different database - this is done is one thread. It works fine several hours - and suddenly i got an out of memory issue (I checked there is no leak in java - I cleared the entity manager every 10 new entity). 1/ I use the default objectDb.conf (i mean i dont use any - so it must be using the default somewhere). 2/ Using Netbeans, I profiled the application and I noticed that there is one thread (ODB FileWriter) running for each open DB. ... 00:05 All the settings in the ObjectDB configuration file are per database. For example, the ...

 
forum_thread

Maven driven compile time ehnancement

Hi,    Just thought I'd share a small bit of Maven config to aid in enhancing persistent classes during compile time. Just add the following to your pom.xml: #1 2011-04-28 02:35 Hi,    Just thought I'd share a small bit of Maven config to aid in enhancing persistent cl ...

 
forum_thread

EntityManager JPA or JDO impl and different behavior

Hi, I have an issue with the EntityManager. My persistance XML looks like: <?xml version="1.0" encoding="UTF-8"?> <persistence version="2.0" xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd"> #1 2011-12-02 02:24 Hi, I have an issue with the EntityManager. My persistance XML looks like: <?xml version = ...