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manual

Entity Management Settings

Explains settings and performance tuning of JPA entities in ObjectDB, the fast Java object database for JPA/JDO. The < entities> configuration element specifies front end settings that are relevant on the client side and in embedded mode. The default configuration file contains the following <entities> element: <entities ...

 
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JDO sequences from ORM file

I want to use sequences in JDO without using annotations. Normally this is done with a package-X.orm file, where X is a value passed to the PersistenceManagerFactory as the value of property "mapping". I'm encouraged to see that the JDO zip that comes with ObjectDB includes the DTD/XSD for this type of file, though I can't see a mention of it in the manual. #1 2013-03-12 17:07 I want to use sequences in JDO without using annotations. Normally this is done with a package-X.orm file, where ...

 
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Unexpected internal exception during set field of an Embeddable to null

Hello, we get an Unexpected internal exception and have no idea what goes wrong. We can reproduce (mostly) the error in a very big use case. In the big use case and we create and persist millions of SignalValueImpl objects (Embeddables). Partly as in the stack trace an Embeddable contain another Embeddable. It seems like that we can't reproduce the problem in smaller use cases with less objects. Stack trace: ... Could you please check for additional stack trace in the log file? You should be able to enhance each feature separately, as ...

 
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New Tutorial: Using BIRT with ObjectDB/JPA

Version 2.2.7 of ObjectDB added support of report generation using the popular open source Business Intelligence and Reporting Tools (BIRT). The new Report Generation with BIRT and JPA tutorial provides step by step instructions on how to use BIRT to produce reports based on data in an ObjectDB database. #1 2011-06-16 20:04 Version 2.2.7 of ObjectDB added support of report generation using the popular open source Business Intellig ...

 
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em.flush(); em.clear(); loosing data and not persisting managed objects

I'm having trouble with flush() and clear() in a loop inside a transaction not persisting modified objects to database. Sometimes it does other times it doesn't. Here is my Entity. ... This is the last entries in the log with log level debug. edit ...

 
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Eclipse Browser

Request for an eclipse browser plugin. Ideally this plugin would allow read-only access to embedded databases. #1 2010-05-22 19:08 Request for an eclipse browser plugin. Ideally this plugin would allow read-only access to embedded databases. ...

 
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Spring LTW Problem

Hello! I use ObjectDB with Spring. Today i tried to swich from AspectJ compile time weaving to load time weaving. (To get Jrebel working properly) So i added  #1 2012-02-23 17:52 Hello! I use ObjectDB with Spring. Today i tried to swich from AspectJ compile time weaving to load time ...

 
release

2.3.0

... Version 2.2.2 Changed log format to include date and time . Changed class loader ... objects in C/S mode. Fixed a bug in setting log directory path (missing URL decoding). Fixed a bug in ...

 
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adding tutorial videos to youtube

Hello , it will be good for you to add video tutorials for objectdb and explorer on youtube. #1 2013-02-02 22:45 Hello , it will be good for you to add video tutorials for objectdb and explorer on youtube. ...

 
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@Entity saved in Tomcat session - problem

Hi, I have found a problem, when storing @Entity object in Tomcat session. When starting or stopping Tomcat, I get nasty exception - please check attached log. Strange thing is, that after this exception everything works perfectly fine. The problem appears after using Enhancer. The nasty solution is to create copy of @Entity class as normal POJO and use it to store in session. The problem is, that we need the same logic for temporary users (without storing in DB) and permanent users (stored in database). A separate POJO makes the whole logic quite complicated.... Tomcat, I get nasty exception - please check attached log. Strange thing is, that after this exception everything works perfectly ... on this? stacktrace.log edit ...