I'm aware this is kind of a generic question, but is there any guidance or any best practices around connection factory configuration when using connection pooling? We use DN RDBMS with HikariCP, and

I'd like to implement a JDOQL query for the following SQL statement: select * from project p, project_strategic_bucket psb where psb.project_id_oid = p.id and psb.strategic_bucket_id_oid in (select sb

Hi! I hope you can help with this issue. I have a simple inheritance of these two classes. I've got them mapped like this with subclass-table inheritence strategy. Also I have query results cache enab

I've got a project with datanucleus v6.0.0-release and in my properties file I've got configured with the following values: As you can see I have the *datanucleus.query.results.cached* enabled In my p

Traditionally we have used the java.util.Date class for storing time instants in UTC time - in all existing tables DN has created a 'TIMESTAMP' type field in MySQL - which works fine. Recently we adde

If a class does not have an attribute defined to be the primary key field but, rather, relies on DN creating the primary key column in the RBDMS table implicitly, is there any way to specify the defau

We have a table like: node(nodetype, subnodetype, ...) From this one table we want to have several persistent java classes. Both node.nodetype and node.subnodetype is needed to discriminate the java c

I am trying to build a test case for JDO. When I clone https://github.com/datanucleus/test-jdo then mvn clean compile test I get a failure, also created https://github.com/datanucleus/test-jdo/issues/

We use below components from datanucleus, since we have a plan to upgrade to Java 17 need to know the compatibility to run the below components on java 17 runtime environment. *Vendor* *Software Name*

Hi everyone, Recently I have created a pull request for Spanner database adapter. While running the Datanucleus tests I have encountered an issue which made me realize that I have not fully understood

Dear colleagues: I am developing a project with Spring Boot and Informix IDS 7.31TD9, but I find that I cannot connect to the database. I tried to load the dependencies of all the versions of Informix

Clearly we can associate a unique (usually integer in our case) class ID / discriminator to each persistent class. Given that this class ID is always unique across all classes within our system I have

Hi Andy, I'm running into a bit of a catch-22 solution here and would love some ideas if you have something. I'm trying to identify all dirty fields of an object during a StoreLifecycleListener. I hav

Hi, In reading through the Plugin documentation on the website, I noticed an oversight in the docs. How/where can I report this? I tried to look to see if there was a github repo for the website, but

Hi, I am using datanucleus with mySql and I am looking for a way to force an index usage in a query (JDOQL). So the generated SQL should look like "select x from T FORCE INDEX (z) where ...". I have i

Hi, I've been trying to work with the StateManager and its savedImage object which I had expected to be a representation of the current object at the time that "saveFields()" is called. Unfortunately,

I'm trying to identify which fields of a Persistable object are dirty, but running into what seems to be conflicting information from the NucleusJDOHelper functions. I don't know if this is expected b

I'm using DN 5.2 with JDO & MSSQL RDBMS. During a preStore event listener, how can I get access to the original state of the object when it was loaded? I found the following field `org.datanucleus.sta

Hello, I have an exception when I execute the following code: ```java private static void exportLibrary(PersistenceManagerFactory from, PersistenceManagerFactory to) { JDOReplicationManager replicator

We would like to do data trail with DN. That is , for every transaction, we want to record all the changes made in the transaction and log them in log file. We find that DN has interface org.datanucle