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

Hello all, I a persisted class I have the following two instance variables: private List<File> referenceFiles = new ArrayList<>(); private List<byte[]> referenceFilesContent = new ArrayList<>(); where

Hi all, I've followed the Unidirectional ForeignKey example for N-1 relations: public class Account { ... @Column(name="USER_ID") User user; } public class User { ... } I create the User, then the Acc

Hi, I believe I have found a bug in the JPQLParser class, but I'm not entirely sure. Considering a User class, with a nullable 1-1 link to a UserAccount class, and a collection of Contract objects in

Hello, I'm mapping a field using a AttributeConverter. The data stored is a string (json format). AttributeConverter<xxx,byte[]> Works great on MySQL. It's mapped on a medium blob. AttributeConverter<

Class log { private int id; @Persistent(column = "userId", defaultFetchGroup = "true") @Extensions({@Extension(vendorName = "datanucleus", key = "cascade-update", value = "false")}) private User user;

The Datanucleus Guide for Value Generator is old and does not correspond to 5.2 API https://www.datanucleus.org/products/accessplatform_5_2/extensions/extensions.html#store_valuegenerator There is no

We have : @PersistenceCapable @Inheritance(strategy= InheritanceStrategy.SUBCLASS_TABLE) @DatastoreIdentity(strategy= IdGeneratorStrategy.SEQUENCE, sequence="jdoid_seq", column="ID") @Version(strategy

With JDO API v3.2 pretty much feature complete finally (and DataNucleus v5.2 and 6.0 passing the JDO TCK, as they have at all points in its development) we have now released *v3.2.0-release* of our ve

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