About lock

forum_thread

JBOSS AS7 7.1.1 - Entity not persisted and createNamedQuery fire exception

I'm trying to have the guestbook example running in the following environment: jboss as 7.1.1 final oracle jdk 1.7.0_04 maven 3.0.4 objectdb 2.4.0_04 installed as a module of jboss No IDE is used for building the Guestbook.war only maven.   My GuestDAO code is as follows: ... locking issue with glassfish. objectdb log file remains lock when application is undeployed ! => better have the log file located ...

 
forum_thread

Updating Entities

Hello, I'm currently writing a program using JavaFX and ObjectDB and I'm encountering a problem with Entities not sending their updates to each other. I have two Entities in question at the moment: Employee and Paygrade. ... by: com.objectdb.o._OptimisticLockException: Optimistic lock failed for object application.model.Paygrade#184 (object has version 86 ... overwriting changes made to the entity, if any, and lock it with respect to given lock mode type. See JavaDoc Reference Page... ...

 
forum_thread

The server cannot start in CentOS

Hi, I try to run ObjectDB from Linux, but failed. My command is: java -cp objectdb.jar com.objectdb.Server start The result is attached. After typing the command, the system seems halting. #1 2011-05-25 08:38 Hi, I try to run ObjectDB from Linux, but failed. My command is: java -cp objectdb.jar com.objec ...

 
forum_thread

500Mb ObjectDb database opening issue

Hi, I have observed that 500 Mb objectDb database opening time is very slow (~3 seconds) for following code m_EntityMgrFactory = Persistence.createEntityManagerFactory( "objectdb:" + aFilename ); m_EntityManager = m_EntityMgrFactory.createEntityManager(); Does exist any way to speed-up open time for big databases? Definitely, it's too long for 500 Mb database! #1 2016-01-14 06:54 Hi, I have observed that 500 Mb objectDb database opening time is very slow (~3 seconds) for following co ...

 
issue

EOFException

Not sure if you'll be able to help with this but I've had an application get into a state where it cannot access anything from the database - queries fail with the following exception: ... one server process), thus bypassing ObjectDB internal file lock protection. Modifying the database file externally not ...

 
forum_thread

Should I use ObjectDB and JDO?

My application is not meeting required performance because JavaDB appears to be my bottleneck.  I require a faster DB.  Surveying the Internet lead me to believe that ObjectDB might be just what I am looking for (to achieve MUCH faster database access).  But, I have a few concerns.   #1 2016-07-09 15:19 My application is not meeting required performance because JavaDB appears to be my bottleneck.  I require a ...

 
issue

javax.jdo.JDONullIdentityException: The identity must not be null.

When stopping my JEE 6 Web Profile application in Glassfish 3.1.1, I sometimes get this exception, yielding in not merging athene.odb and athene.odb$. A bug in objectdb?    bjjl@ps2:~$ ls -l /var/db/athene/ total 122080 -rw-r--r-- 1 bjjl webservd   2621440 2012-05-24 16:40 athene.odb -rw-r--r-- 1 bjjl webservd 122265952 2012-05-24 16:40 athene.odb$ bjjl@ps2:~$   Bug Version: 2.4.0 Priority: Normal Status: Fixed Replies: 4 Type:  Bug ...

 
forum_thread

Query results are not up to date for entities, not primitives

When using the CriteriaBuilder to query, the retrieved list are not refreshed according to the latest updates. But, when using the JPQL Query, the list are refreshed. What is the problem? #1 2014-09-27 17:42 When using the CriteriaBuilder to query, the loaded list are not refreshed according to the latest updates. B ...

 
forum_thread

First query takes 4+ minutes to complete

Hi, we are evaluating ObjectDB 2.5.1_04 in embedded mode hoping to replace SQLite in our application. We observed that in our case it takes on average more than 4 minutes to complete the first SELECT query that we run on the DB which contains about 320,000 records of a single type of object. SQLite in comparison responds within few seconds on average with the same number of records. We hope to receive your recommendation on how to improve this result with this post.   Test System #1 2013-08-05 05:44 Hi, we are evaluating ObjectDB 2.5.1_04 in embedded mode hoping to replace SQLite in our application. ...

 
forum_thread

Explorer in 2.3

First, the new Explorer in ObjectDB is fantastic! This is exactly what we've needed - an easy way to do ad-hoc JPQL queries and navigate through the results and even make small changes to primitive data and Strings. After playing with it for a while, here is a list of additional features I'd love to have: 1. Export of selected data: a. Simple - Select a range of cells or a column header and copy text to the clipboard or save to a file (csv, html, etc..). (There appear to be copy menu options, but I cannot get them to work.) ... an @Embedded object, I get an error message: "Attempt to lock a non entity object". The change stays on the screen, but is not persisted ...