About generated

release

2.0.1

Release date: 2010-10-05 Download (3.39 MB) Binary:  objectdb-2.0.1.zip ObjectDB 2 is already in use in production in several applications and is ...

 
forum_thread

Show Sql/Jpql

Is there a way to show the executed Sql/Jpql in the console? #1 2013-02-28 09:23 Is there a way to show the executed Sql/Jpql in the console? edit ...

 
forum_thread

ObjectDB Manual

Hello,I would like to be able to read or refer to the ObjectDb manual (v2) on my Kindle. Unfortunately, I didn't find any option to download the manual, either as a .pdf (most convenient)or as a zipped set of .html files (a single file would be better for an easier conversion to .pdf) Is there such an option I'm unaware of on your website or could you make the manual available for offline reading?Very best regards,Paul #1 2010-10-10 01:25 Hello, I would like to be able to read or refer to the ObjectDB manual (v2) on my Kindle. Unfortunately, I didn ...

 
forum_thread

What are the steps of creating small web app?

Hello guys, I have a question about creating small new web application, I am almost done with researching and studying and I have covered all the important concepts e.g. # Starting from web technologies: HTML, CSS, JS, JQuery. # Moving to Java Technologies:  Core Java, Servlet, Managed Beans, JSF, JSP, EJB, JMS, JPA, JDBC,Security, Ajax using Primefaces. # Backend technologies: MYSQL, SQLite, JavaDB, BIRT/ Jasper reporting. Tools: Eclipse, Netbeanse, SVN, Git repositories, SQLyog, Glassfish. ------------- #1 2013-03-05 12:04 Hello guys, I have a question about creating small new web application, I am almost done with researching and stu ...

 
issue

ArrayIndexOutOfBoundsException on flush

The following exception was thrown when my app attempted to flush an objectdb database: ... [ObjectDB 2.3.3] Unexpected exception (Error 990) Generated by Java HotSpot(TM) 64-Bit Server VM 1.6.0_26 (on Windows 2003 ...

 
manual

Database Replication and Clustering

Replication enables maintaining up to date version of an ObjectDB database on multiple nodes.... replicated databases on the slave server are automatically generated under a special root directory, $replication , under the server ...

 
issue

No Entity Class API

Both JPA and JDO are based on accessing and managing data in the database using persistable classes (mainly entity classes in JPA or persistence capable classes in JDO). Sometimes, it might be useful to access data without classes. For example, a tool that finds and replaces strings in the database should be generic and should not be bound to specific entity classes and persistent fields. An API for accessing (and maybe also modifying) data in the database without classes can be useful in some applications. Feature Request Version: Priority: Normal Status: Active Replies: 3 Type:  Feature Request ...

 
forum_thread

Vacuum - Reclaiming Unused Space In Odb

I was curious if you could assist me with a challenge we are having with our objectdb database.  Our odb files are about 50Gb in size and are written to about a million times a day with both adds and updates.  This is creating a lot of unused space in the database that we are wanting to reclaim.  Other database vendors provide a vacuum process to allow dumping a database to a flat file (basically a sql dump) and reload.  Is there a capability in ObjectDb to provide a vacuum?  The online backup feature appears to copy the dead space as well so isn't performing... effect by running the Doctor in repair mode . The new generated database is expected to be compacted. Currently this is available ...

 
forum_thread

Is named-query supported in orm.xml

I prefer to keep custom JPQL named queries in an external file, e.g. orm.xml, rather than in the entity classes, for example: <named-query name= "DataValue.deleteByCapabilityAndCreationtime"> <query>delete from DataValue d where d.capabilityId = :capabilityId and d.creationtime &lt;= :creationtime </query> </named-query> This works fine with e.g. eclipseLink and postgres, but objectDB complains with an error like: #1 2011-10-12 14:50 I prefer to keep custom JPQL named queries in an external file, e.g. orm.xml, rather than in the entity classes, ...

 
forum_thread

Indexing a field results in internal Exception

I have an application that I have been converting from JPA/MySQL to JDO/ObjectDB and I have hit a problem with indexing. An index on a String field is required to give good performance but if I add the @Index annotation to the field I eventually end up with an ObjectDB internal exception.  This is reproducible, as is the program running to completion (slowly) if I remove the @Index annotation.  Is there anything I can look for that might result in this exception? ... [ObjectDB 2.5.0_01] Unexpected exception (Error 990) Generated by Java HotSpot(TM) 64-Bit Server VM 1.7.0_11 (on Linux ...