ObjectDB Database Search

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Is ObjectDB better than competing object databases?

, supporting community, forums, IDEs support, tools, books, tutorials and  sample code. ObjectDB

Problem with @Basic(fetch = FetchType.LAZY)

the problem: import javax.persistence.*; @Entity public class Sample { private String title; @Basic(fetch ... ; public Sample () { } public Sample (String title, String description, String code) { this.title = title ... / sample .odb"); EntityManager em = emf.createEntityManager(); Sample sample = new Sample ("Title

JPA Tutorials

by step instructions on how to create the sample applications. In addition, the sample applications

Getting Started with JPA

. The sample application is also explained in details in  Chapter 1 of the  ObjectDB Manual , but if you prefer to start by running a live sample application in your IDE, you should be able to follow

Problem on JPA Merge Entity.

a little sample . guli CHARLOIS Hi, I just work all day on the problem reported yesterday . I think ... , because i have a big hierarchy of class in entity domain) sample that highlights the problem.   ... the project archive.   The little sample is based on a web page ( http://localhost:8080/ERGO_ObjectDB

500Mb ObjectDb database opening issue

;  |   Time (ms)    |   Samples    ... ;   |   Samples    

Possible cause for "Enhancement of type ... is old and cannot be used"

sample for you demonstrating the problem some months ago as an issue report at: BUG: objectdb-2.6.6_07 ... and enhanced, further instructions on how to reproduce the exception with this sample test case are needed

Immediately retrieve unique id

The beginning of my " Sample " class looks like: @Entity @SequenceGenerator(name = "sampleSeqGenerator", initialValue = 1, allocationSize = 100) public class Sample implements Serializable { private static final long serialVersionUID = 1L; private String sampleName; @GeneratedValue(strategy

objectdb on single server 20TB storage possible ?

:             Gather data sampling :   Not affected   Itlb ... sampling : Not affected   Retbleed:               Mitigation

Error opening database with ObjectDB Explorer when using composite key

;       ..... copaco Edwin Brood Please attach the sample odb file with the issue. support Support Added a sample database  copaco Edwin Brood Thank you for this report. Please check

AttachNotSupportedException

the database in the Explorer? Can you post a sample database that demonstrates the problem? support Support ... Rui Rosado Thank you for the update. We can comfirm that the sample database in #3 above has no errors

EntityManager JPA or JDO impl and different behavior

you can show it by modifying the above test. support Support If you can covert your sample project from ... of the sample test in the posting instructions . Static inner classes should be used for the entity classes

JPQL JOIN FETCH Error

to understand the problem. Is there a sample database that you can upload in order to show the  ... soon, and if you provide a sample database (possibly in a support ticket) it may be possible

Jboss 6 persistence.xml startup error

the attached sample file. Use objectdb-jee.jar instead of objectdb.jar . The new jar ( objectdb-jee

Can I Disable the Creation of the "log" Directory?

These are questions asked in the context of the proposed architecture described in the forum thread titled, " Sample JDO Architecture for Follow Up Questions".   In the objectdb.conf file (attached to forum thread mentioned above), I disable logging (by setting log path="") but the "log

EntityManagerFactory objects being locked during EntityManager creation

this issue. Note: We have tried to create a sample program to recreate this issue, but were not

Trouble viewing db in Explorer.

have debug on, here is a sample of the console:     [2012-06-07 11:08:06 #47186 query

Double persist of Entity field with Cascade.ALL

would have double entry of same record. Burabari Burabari Kpai For completeness, attached is the modified sample

javax.persistence.PersistenceException

. Could you please upload your sample project / projects? support Support You may also look at: http://sourceforge.net

Update Entity references if we change the type of an entity

and your sample test passes. However, please note that: It may slow your application. Object IDs

Join query problem with new statetment

a sample case that reproduces the exception (you may attach the database and the code to a support

Populating JavaFx table from ObjectDB

Please I have being working on an application, and I am experiencing some challenges populating my javaFx table from ObjectDB, Please I don't know if I can get a sample code for populating javaFx table from ObjectDB that could aid my Project. Jerry Onoja Jerry You may check the following links

Performance in SELECT statement

more details and sample code. support Support The index thing did the trick! Thank you... I

Storing objects problem

this problem. kiki Kristijan Please follow the posting instructions and provide a sample program

Does ObjectDB support lazy loading?

that demonstrates that issue. The following sample program demonstrates lazy loading: package com.objectdb

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

virtual servers and one file

when the issue happens as well as generating several sample thread dumps when that happens. support Support

Unexpected behaviour upon update. Bug?

This sample does not work as I expect.  Why?  Is it a bug? Below is the complete program. Expect: 3 Get: 4 import java.io.Serializable; import java.util.List; import javax.persistence.*; @Entity public class Update implements Serializable { @Id int i; int v; public static void main

Unable to convert 1.x odb file to 2.x

would be much more difficult to fix, since no exception with a stack trace is available now. Therefore, we may need a sample

How to disable Transparent Update.

How to disable Transparent Update. I have done 2 task in a single transaction. 1. Find a entity by a em.find(Class cls,Object o) and change some fields.(not updating) 2. Persist a new entity. But i found the in 1st case the changed value was updated. I have attached the sample program

Get multiple entities by Id

Bischel Could you please post a sample test case that demonstrates the problem? Something simple in

getting "Unexpected total page count" error when diagnosis mu db by ObjectDB doctor.

data.   Manoj Manoj Kumar Maharana Can you send a sample database that can demonstrate

ObjectDB version 2.1 has been released

ObjectDB 2.1 has been released and it includes important additions and fixes: Added Online Backup utility ( issue #16 ). Added Master-Slave  Replication / Clustering (issue #17 ). Added a PDF version of the ObjectDB manual (included in the download). Added sample (tutorials) Maven projects

Bad Backups – Null Error when issuing simple query on backup via ObjectDB Explorer

sample database that have this issue with us (e.g. through a link for download in a private support

Database size is much larger than expected (x2)

these questions without a sample test case since many details are missing, but here are the general

Understanding Database max-threads objectdb.conf Settings Option

These are questions asked in the context of the proposed architecture described in the forum thread titled, " Sample JDO Architecture for Follow Up Questions".   In the objectdb.conf file (attached to forum thread mentioned above), I set Database max-threads.  In the documentation

Queries are slow on a large database

should be returned by this sample query? If there are many Message instances with the same requested 

How to do an Offline Database Backup?

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 desire offline backups.  I must close all connections, wait for current database activity to stop, and prevent new

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

strings and for sample code (but notice that the code in that thread demonstrates the less efficient

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

URGENCY, or in query does not report any objects on first operand having no results

;relevant was fixed in build 2.8.9). Can you share a sample database that demonstrates the issue

Query becomes slower on moving from ObjectDB 1.x to ObjectDB 2.x

an index is missing? It would help if you could upload a sample database and a simple test program

combined index not used

-Georg Zwicker Running the query on the sample database that you sent in the Explorer shows ... (on that sample database) for further analysis? support Support we do not have that database any ... (); } It may take some time for this process to complete (about 20-30 minutes on your sample database

ArrayIndexOutOfBounds with Critera API and function call

goot from our root selector) I cannot create yet another sample as creating samples takes quite some

Why does ObjectDB duplicate classes from javax.jdo:jdo-api?

modules can be problematic in projects that use Java 9 modules. I've created a sample project

java.lang.ClassCastException: com.objectdb.o.RFV cannot be cast to com.objectdb.o.RSV

when the parameter type is a Drill instead of a Template. Updated: Sample data file removed now that the issue

queries under 2.7.6_4 significantly slower than under 2.7.6

on your sample database). It may be effective to run this again occasionally when the database

Better OSGI Compability

We are currently using objectdb using osgi. However, the objectdb jar seems to be very monolithic and should be more modular to make it easier to use it with osgi, samples are: - Remove SWING dependency from core objectdb bundle - Externalize persistence and jdo apis and not putting them into

ObjectDB 2.3.1

Added support for using ObjectDB with JBoss AS 7.0 . Sample databases (world.odb, points.odb) included in ObjectDB distribution. New default Explorer colors (apply with Tools Options Fonts Reset All). New menu for accessing local databases (in $objectdb/db ) in the Explorer. Improved

Update query null error

Could you please demonstrate it with a query that has results with the sample database that you sent us, as