I'm trying to get a complex query working with a subquery in the filter which is failing in the JDOQL Parser. I have diluted it to a very simple use case with a subselect which is failing as well. Ple

I need a distributed L2 caching solution and I've narrowed my options down to the big 3: - Redis - HazelCast - EhCache/Teracotta Although I've used Teracotta several years ago, I've somewhat eliminate

Hi, I have two tables Like User and Location and they are mapped by one to many (Location is lazy loaded) Here are the operations performed (Same persistence manager for both requests) Ist request-> f

I'm getting the below error (rather "randomly') when loading certain fields of my entities. I don't know where to start looking. Any kind of advice is appreciated. On DN 5.2 with SQL Server. Let me kn

DN v6.0.0.m1 is released. Notable changes are Minimum Java requirement v11. Upgraded ASM to v9.1 to provide for all current bytecode. Support for Jakarta Persistence v3.0+ API. The JPA API is effectiv

Hi, I'm not sure if this is a bug or by design. I have raised an issue in the Datanucleus-rdbms project at https://github.com/datanucleus/datanucleus-rdbms/issues/384, ( https://github.com/datanucleus

My DBA has prepared some custom SQL queries that he does not want to put into StoredProcs. So I want to execute them via a normal Query.executeResultList(). However, I noticed that if the query does n

I have a few pieces of code that use native PreparedStatements, but am having trouble using them in conjunction with the PersistenceManager. The current approach is: Connection conn = (Connection)pers

Hello all, I'm migrating from java 8 to Java 16, and building one of my Maven projects fails with the following message: ``` Failed to execute goal org.datanucleus:datanucleus-maven-plugin:6.0.0-m1:en

I'm working on migrating legacy code that was using the OpenJPA Transaction Listener to identify a transaction boundary (commit) to trigger some post-commit functionality. The logic is a bit messy, bu

For anyone developing any DN plugin, the majority are now branched so that "master" is for v6.0. Use the release branch for whichever version you are developing for

I'm having some strange RDBMS N+1 calls most likely due to my mappings, but am not sure if this is a DN Persistence configuration issue or a mapping issue. I'm using MSSQL. My problem is that I have a

Hi, Are there any options to deactivate foreign-key constraints, then insert/update/delete table per table using batches, and then reactivate foreign-key at the commit ? I used a product with that fea

I've been encountering something I don't understand with the Query caches and the L1 cache. I've tried reading the DN docs a few times, but I am still confused by the results I am seeing. My persisten

I'm working on a fairly large, slow startup legacy application in which I am slowly trying to integrate DataNucleus. I am also leveraging JRebel, which allows me to modify most classes on the fly with

Hi I try to migrate a legacy application (on Kodo 3.4, develped over 10+ years). I now created all needed plugins so our very much not JDO compliant code runs. However, now that it works I have a mass

Hi, When 2 queries with the same tenant but different tenantReaders are executed, the second one returns the result of the first one. The SQL generated is the same for the second query while it should

I'm encountering a strange behaviour for which I have not been able to pinpoint the cause and was hoping that someone could help point me in the right direction. I have an application running under JB

I'm trying to integrate DN (JDO) into my JEE application via the JCA adapter, and configure the Persistence manager to understand BeanManagedTransactions. I am retrofitting this into existing code (fo

I'm trying to integrate my instance of JBoss/Wildfly 10 with the Datanucleus JCA-JDO connector. I saw an original post for JBoss AS7 ( https://developer.jboss.org/docs/DOC-17094 ) as linked from the D