About projection

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Distinct Error

Hi, I'm getting a NullPointerException thrown on using DISTINCT. The query works fine if I don't have distinct. However thats NOT a solution as the code generating the query is used for other queries, and some of them do need the distinct. Its only a simple query: QUERY: SELECT DISTINCT $1 FROM CDI $1 JOIN $1.attributeList $2 WHERE ($2.name='firstname') AND ($2.valueAsString='Alex') #1 2011-07-21 01:32 Hi, I'm getting a NullPointerException thrown on using DISTINCT. The query works fine if I don't ...

 
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Evaluation License

Hi, I'm an individual developer and my project has more then 10 persistable types. How can I get a free commercial license? (According to the post below, this might be possible).     Hi, This exception indicates an attempt to use more than 10 persistable types (e.g. entity classes) with no license key. As noted on the license page: #1 2012-07-11 14:42 Hi, I'm an individual developer and my project has more then 10 persistable types. How can I get a fr ...

 
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Removing entity class

Hello, I am using evaluation version of ObjectDB for long term private project. Recently I hit the 10 entities limit and got exception: com.objectdb.o.UserException: Too many persistable types (>10) - exceeds evaluation limit Among the 10 entities in the project there are 2 entities I added long time ago and they were never really used. I deleted them from Java source code, but there are still in ObjectDB database. The 2 tables for these entities are empty, but the tables exist, so they count into 10 entities limit. #1 2014-06-02 19:50 Hello, I am using evaluation version of ObjectDB for long term private project. Recently I hit the 10 ent ...

 
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Consulting and Training

Our consulting and training team will be happy to assist you with on-site or remote consulting and training services. Consulting Facing a migration project? Performance issues with your current persistence architecture / framework? ...

 
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Guestbook EE ear app please

Using Eclipse I have no problems running the Guestbook app as a web app on an EE 6 server. However, I would like to call the ejb from a remote client. I have tried various ways in creating different projects for ejb, web and client, with and without an ear, and bump into queer problems. Of course I have a remote (and local) interface, but I can't get anything to run unless I do EXACTLY one web project as in your tutorial. Can you please put together another tutorial illustrating remote client access along with web access. #1 2014-10-19 18:24 Using Eclipse I have no problems running the Guestbook app as a web app on an EE 6 server. However, I wou ...

 
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Extended mapping-definitions

The described feature is not available in any object-db I know, but possible with mapping to a relational DB, for example with Hibernate.   By default every entity of the real world (respectively its class) gets mapped to a java class. So cats get mapped to the java class 'Cat', dogs to 'Dog' and so on. In the project for which I'm evaluating objectDB, there 1.) will be hundreds of classes and 2.) not all classes are known at project start (an editor). #1 2013-04-11 17:04 The described feature is not available in any object-db I know, but possible with mapping to a relational DB, for ...

 
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type.loader java.lang.ClassNotFoundException

ObjectDB objectdb-2.2.5_03 in client-server mode Netbeans ID6.9.1 Glassfish3.0.1 With server logging turned on I get the following error message for many (or all) encountered classes: #1 2011-05-31 00:03 ObjectDB objectdb-2.2.5_03 in client-server mode Netbeans ID6.9.1 JavaEE web project (JPA) Glassf ...

 
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How prevent post-compile enhancement of non entity classes

I have recently moved to post-compile enhancement (from automatic run-time enhancement) using an Ant build.xml for a NetBeans web app. My adapted build.xml works for both full project build and per-file compilation (with NetBeans "compile on save" off), but it is not yet perfect at only invoking the enhancer on entity files. For full project build the following works, by grouping entities under clearly named packages: #1 2014-09-14 01:02 I have recently moved to post-compile enhancement (from automatic run-time enhancement) using an Ant build.xml fo ...

 
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"No Persistence provider for EntityManager" in OSGI bundle.

Good Day. I seem to have gotten a bit stuck while developing an OSGI bundle with ObjectDB. Essentially it builds an OSGI bundle with an embedded instance of ObjectDB and then tries to deploy the bundle inside an application running an embedded OSGI server (Apache Felix). The STARTING phase seems to fail due to the below error. #1 2011-11-10 14:31 Good Day. I seem to have gotten a bit stuck while developing an OSGI bundle with ObjectDB. Essent ...

 
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Compile time enhancement using build.xml of a Netbeans web application

Does anybody have a complete, working example of the adaptations required in the build.xml of a Netbeans web application project to specify ObjectDB compile time enhancement, for both single file and whole project compilation ? The ObjectDB 2.3 manual gives the following tip: #1 2012-03-20 00:43 Does anybody have a complete, working example of the adaptations required in the build.xml of a Netbeans web appl ...