Hi, I'm testing datanucleus.TenantReadIds and receive a NullPointerException PersistenceNucleusContextImpl:getMultiTenancyReadIds line 1928 return new String[] {ec.getStringProperty(PropertyNames.PROP

Hi, I'm looking again at how to segment data based on user "profile". An easy to understand concept is to imagine an organisation with subsidiaries, each having departments, departments organized in t

Hi, I'm trying to specify foreign-key names. This helps to reduce the effort on db schema comparison at the end of development, to prepare the schema upgrade script. Actually it works very well on mos

I'm evaluating DataNucleus as a JDO implementation vs a Hibernate JPA implementation. On of the big selling points that Hibernate provides is the Hibernate-Envers ( https://hibernate.org/orm/envers/ )

I would like to add the default value of a field to the database column definition, in order to have the SchemaTool generating it in the database. I tried like in the doc, but without success: <mappin

Hi, I'm facing some issue to use a fresh new mysql8 server. DN doesn't find the tables because of case sensitivity. Tables are created in lowercase while DN search for upper case. Debugging schema int

Hi, I faced issues to use the SchemaTool with MySQL 8 failing to upgrade the schema or to recreate it from scratch, with the error "Index/candidate part #0". In a debug session of the SchemaTool, I ob

Currently unavailable due to change of ISP. Use downloadable docs from sourceforge. Hopefully back soon

Hello, I am migrating from 2.x to 5.x and getting below exception during runtime, please advice how to fix this issue. datanucleus.query.resultSizeMethod of "COUNT" is only valid for use with JDOQL or

According to JDO Mapping Guide ( https://www.datanucleus.org/products/accessplatform_5_1/jdo/mapping.html#_defining_the_current_user ) , to support auditing @CreateUser, we could define an implementat

Hi everyone, I use JDOQL with Datanucleus 4 and Spanner as backend. I use Spanner as a backend for some time and it works mostly fine. But recently I hit a problem when there are too many OR statement

When persisting this model with datanucleus-mongodb @PersistenceCapable public class Room implements Serializable { @PrimaryKey @Persistent(valueStrategy= IdGeneratorStrategy.IDENTITY) private String

What would be the Datanucleus/JDO implementation to this: Suppose I have a POJO, `Hub` which represents a place/location: ```java class Hub { List<Schedule> schedules; } ``` And a `Schedule` class to

Hello, As part of migration from 2.x to 5.x, we are facing a error because the select statement is having ambiguous column name. Same code was working with previous version, looks like we have to chan

Hi, Since I added optimistic locking, with a numeric version attribute, the deletion doesn't work. ERROR DataNucleus.Persistence - Object with id "1" in table I18N_MESSAGE has no version set on the ob

Hello, I am migrating from 2.x to 5.x and all my old code is around javax.jdo.spi.PersistenceCapable(types casting from object type etc). But now when I enhanced my classes using latest version, I can

Hello, I am migrating from Datanucleus version 2.0.4 to 5.x. In 2.0.4 version, length for DB2, CLOB columns used to come as "1M" when schema gets created. Now, in 5.2.3, length for DB2, CLOB columns i

Hello all, I have defined a java class using the default attributes: @PersistenceCapable(detachable = "true") public class PropertyTemplate { ... private String description; ... } And stared using the

I have used https://www.datanucleus.org/products/accessplatform/jdo/query.html#stored_procedures to build code but that did not work.

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