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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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objectdb.jar labeling

Have been meaning to file this feature request for some time: please label the objectdb.jar with versioning information. e.g.: objectdb-2.4.0_04.jar   #1 2012-06-06 00:00 Have been meaning to file this feature request for some time: please label the objectdb.jar with versioning i ...

 
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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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Listing large number of complicated objects with paging.

Hi, For last few hours I was working on a problem with bad performance and memory problems with such a simple query: select prod from Product prod order by prod.id ASC Right now I have 55541 'Product' (attached to this post) entities in database and I'm trying to speed listing them with paging. The problem is, that running code that looks like this: ... to fetch 50 records at a time. The funny thing is that in log from query manager fetchSize is like all objects in database: ...