I'm trying to use the Ant task to enhance a class having a field with a custom converter attached, and I'm getting the following class-cast exception. Any ideas what might be causing it, or how to wor

In this class diagram you can see the abstract base class doesn't have (nor requires) any of it's own attributes. The FieldManager class could have been an interface apart from the fact that: * we wan

*UPDATE: Turns out this was a problem with another parameter, not the date parameter, which was in fact a transient persistable class. I had left this other parameter out of the example, assuming the

I'm in the very early stages of debugging a unit test that is failing with an exception when establishing a PMF for a model that has classes with references to interfaces. This exact model works fine

Hi, Trying to use the datanucleus rest api. I have the POJO classes created for entity and trying to access them as resources. Following the instructions given in this link.. http://www.datanucleus.or

Datanucleus document says... datanucleus.allowAttachOfTransient When you call PM.makePersistent with a transient object (with PK fields set), if you enable this feature then it will first check for ex

In our project, a Delete query is showing an error when used with IN clause having a single parameter. I've forked the test-jpa project [1] and updated the SimpleTest.java [2] to recreate this issue.

I am attempting to map a simple point field into a PostGIS database. I’ve configured package.jdo according to the example. Schema tool is generating something like the following: CREATE TABLE "IMAGESO

The *DataNucleus Forum* is planned to be *DELETED* permanently in *February/March 2018*. The MVNForum software that it used hasn't been updated for years, and the number of spammers who try to post th

I have created a test case (attached) that reproduces this issue. The class diagram is: The test case also does a dump of the AirCraftController (atc) table schema and its records in the H2 database t

I have an application that, upon initial startup, creates about a 100,000 objects in a h2 database (using JDO). Each object is committed in its own transaction. About half way through, the log spits o

Is it possible to control the quoting of identifiers. I am using Postgresql (with JPA) and, by default, all tables and column names are created as upper case. This is unnatural for that database (whic

Since Java 6 / JDBC 4 it has been possible (and normal practice) to open a Connection without specifying the driver or attempting to load its class. Unfortunately if I omit the driver name in DataNucl

I am trying to add support for Oracle NoSQL DB, but I am not getting any good enough documentation. I am trying to follow this link http://www.datanucleus.org:15080/products/accessplatform_5_1/extensi

I am able to utilize extension point="org.datanucleus.store.rdbms.rdbms_mapping" so that all new Boolean columns created will be of type smallint instead of bit. Is there an easy way alter all tables