I have seen rumours of Datanucleus running on Android. I assumed it would because of SQLite support, but this was a mistake. Before I switch to a different persistence method, is there any way that Da

Hi everyone, I am implementing an RDBMS adapter for the GCP Spanner DB. I encounter a problem with transactions and metadata operations. Spanner DB supports information schema queries ( https://cloud.

I am doing version upgrade of Datanucleus jars. Now, during compilation, I am getting below stacktrace in DataNucleus.log. (main) ERROR [DataNucleus.Enhancer] - Error thrown enhancing with ASMClassEnh

After updating of DataNuleus from version 3.3 to 5.2, I get the following error from the query, which limits the max. fetch depth. This Query works correctly with DataNucleus 3.3. java.lang.ArrayIndex

Hi, When I use an attribute converter on an attribute, DN does not load the length validation attribute, keeping its default 255 value. (debug shows the length attribute is 255, probably not loaded) T

Has anyone else seen this issue before? Everything has been working fine for all MySQL 5.x versions but after exporting the database as a SQL dump from 5.7 and importing the SQL dump into a new MySQL

We've just migrated to version 5 and occasionally get the following warning: Query - >> Currently do not support adding restriction on discriminator for table=mytableA f0 to class MyClassB where: myta

After my misguided attempt to get some help on github I'm trying to do it correctly here (: I'm in the midst of setting up a JavaFX project with Datanucleu + JDO + JDOQL. I've got the first two parts

javax-jdo SequenceGenerator does not support for MariaDB http://www.datanucleus.org/products/accessplatform/jpa/mapping.html#valuegen_sequence But Maria db has support for sequences from 10.3 https://

We have created a custom id generator class ABCDLongValueGenerator.java for id column plugin.xml <?xml version="1.0"?> <plugin id="abcd" name="DataNucleus plug-ins" provider-name="abcd"> <extension po

When I try a standard code I get the following error message. javax.persistence.PersistenceException: Error encountered when extracting results for SQL query "get_person_list_sp" at org.datanucleus.ap

I have a JDO query that is caching its result set which makes sense as caching results sets is turned on by default. Part of the app adds a new object to the database (and I verify that the new record

I use PrePersist, PreUpdate, ... callbacks to perform validation on object graphs. When an error is identified, the callback raise an exception ( instance of a sub-sub-class of RuntimeException). I ex

I have a hierarchy of persistent 'Event' type classes, the base class of which stores a timestamp of millisecond precision and the app can produce an audit trail that orders objects according to this

Hello, After a while (of successes and failures) I reach a point where inserts break the unique index on the database table. I use MySQL, with a Long id for each class and hikari as connection pool. T

In JPA, the equivalent to JDOHelper.getObjectId, seems to be PersistenceUnitUtil.getIdentifier. Trying to use it (test purposes) with the L2Cache I face an issue. Using the model of the DN example, em

Regarding date format, there is a error in the documentation. Month are specified as 'mm' like minutes. It would be better to mention MM (looks like SimpledateFormat) JPQL supports literals of the fol

I have an inheritance model with OneToMany (Collections) declared in the super-class (persistent). When I perform a query on the subclasses I would like to load these elements. So far I can't find how

I faced the bellow "issue" while detaching a query result. An application fix is to desactivate the L2Cache. Cannot make object non-transactional since object is dirty org.datanucleus.exceptions.Nucle

Hi, The schema tool is creating unique indexes on every foreign-key. I'm trying to reproduce the case on a shareable application, but I can't reproduce. The index name pattern is <Target table>_U<numb