JPOX

Hi, I have some problems using DataNucleus with PostgreSQL., it's impossible to create the schema for the various classes. The problems are with the primary key, i get some exception about: An exception was thrown while adding/validating ... [More] class(es) : ERROR: multiple primary keys for table "A" are not allowed I have to say that if i test the same code with mysql (changing only ... [Less]

Ever wanted a downloadable PDF of DataNucleus/JPOX docs? Well you now can, for DataNucleus Access Platform. You can download it [url=http://www.datanucleus.org/products/accessplatform/datanucleus-accessplatform.pdf]here[/url]

Hi all, while writing the test case for [url=http://www.jpox.org/servlet/forum/viewthread?thread=5156]this issue[/url] I came across another error. With the same class structure the following JDOQL produces an error: [code] SELECT ... [More] this.b, [color=red]count(this)[/color] FROM A GROUP BY this.b [/code] The error message says: org.datanucleus.exceptions.NucleusUserException: The ... [Less]

Hi all, haven't posted for a while here, so first I'd like to congratulate to the new DataNucleus version. Compared to the JPOX version we used until some time ago there were many improvements [=D>] Concerning the error I found, take the ... [More] following situation as an example: [code] class A { private B b; } class B {} class C extends A {} [/code] The following JDOQL produces ... [Less]

I have a class with a public sql.Date attribute initially set to new Date(0). Other than it is public, the class also has a method to return this Date attribute. After processing and filled with real date, it was persisted into MySQL. I checked in ... [More] MySQL and it contains real date and NOT 1970-01-01. When I retrieve it via jpox with an iterator, I add coding to examine its contents: while ... [Less]

I have a find method that takes a Class (as in the value returned from MyClass.getClass() ) and needs to set up a query where a part of the filter makes a comparison with that class. eg., [code]class Type { ... } // lot's of classes ... [More] extending Type ... class ClassA { Type myType; } // Find all objects of class A where A.myType is a class of the // passed in type, ... [Less]

Hi All, I've observed two things which seem a bit odd with the JPA tutorial files from jpox-samples-jpa-tutorial-1.2.0: 1. I get a bunch of errors during the enhance stage: [enhancer] Jun 18, 2008 9:45:26 AM ... [More] org.jpox.enhancer.asm.JdoClassChecker reportError [enhancer] INFO: Class "org.jpox.samples.jpa.tutorial.Book" doesnt implement the interface ... [Less]

Hello *, with the DataNucleus nightly build 2008-06-03 01:35, I get sometimes such exceptions: [color=red]2008-06-17 16:32:21,336 WARN (JMS SessionPool Worker-0:[email protected]) [DataNucleus.Persistence] Exception thrown by ... [More] StateManager.isLoaded No such database row org.datanucleus.exceptions.NucleusObjectNotFoundException: No such database row 2008-06-17 16:32:21,343 ... [Less]

Hello *, because I wanted to analyse another problem (I'll write a forum post about it later), I just downloaded today's nightly build of DataNucleus. Unfortunately, it doesn't work at all - I get the following exception very early: ... [More] [color=red]NestedThrowablesStackTrace: java.lang.IllegalStateException: [com.arjuna.ats.internal.jta.transaction.arjunacore.inactive] ... [Less]

Hi y'all. I'm learning JDO through the use of Roos's wonderful free book, Eclipse, JPOX, and Oracle 10g database. However I am facing a couple of pretty mysterious mistakes. First of all, the execution of a client program is horribly, horribly ... [More] slow - even inserting one row to a one column table takes about a minute, or more. But this is not the worst thing - once I started experimenting ... [Less]