datanucleus

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Datanucleus JPA Update & Delete operation

I am using Datanucleus as the JPA engine to perform CRUD on an entity in Force.com DB. Insert and Select are working fine, but while updating a new row is getting created and delete does not remove th[详细]

2023-03-05 01:38 分类：问答
SchemaToolTask not found in datanucleus-rdbms.jar

I have started开发者_开发知识库 with data nucleus a couple of days ago. I have downloaded the jdo tutorial and am trying to run it.[详细]

2023-02-25 06:51 分类：问答
Datanucleus + OSGi (Equinox) gives error No suitable driver found for jdbc:mysql://localhost:3306/jdoosgitest

I am trying to use datanucleus jdo implementation inside the osgi environment but I am constantly getting error : No suitable driver found for jdbc:mysql://localhost:3306/jdoosgitest[详细]

2023-02-17 22:11 分类：问答
What the difference between providers DATANUCLEUS and DATANUCLEUS_2 in Spring Roo?

Can anyone tell me the difference between theses two commands? 开发者_如何学编程 persistence setup --provider DATANUCLEUS --database H2_IN_MEMORY[详细]

2023-02-16 21:56 分类：问答
High Level Java Client selection for Apache Cassandra [closed]

Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers.[详细]

2023-02-15 07:24 分类：问答
Reading a persistent object's variable prevents it from being added to an object later

I am trying to make a new object Session and persist it to the database. It has a persistent variable of object User. I query the DB for the user I want to add to the session. If the user\'s password[详细]

2023-02-13 02:52 分类：问答
Container Managed Transaction with JDO/DataNucleus

Goodmorning all, I\'m currently playing with Datanucleus/JDO. One thing that I like is the Type safe query system, and I want to use Datanucleus in future projects (I come from Hibernate background).[详细]

2023-02-08 15:04 分类：问答
Google App Engine App with JPA deployment hangs

I have a java GAE web app with datanucleus as the JPA provider. When 开发者_开发知识库deploying locally on my machine - the deployment hangs (takes minutes). Looking at the task manager I have a javac[详细]

2023-02-07 23:10 分类：问答
Inconsistent cascading persistence-by-reachability behavior with JDO, App Engine, Data Nucleus, JUnit

I\'m experimenting with App Engine, using JDO and DataNucleus for persistence.I have a simple domain that includes several unidirectional relationships.The question comes with nesting those relationsh[详细]

2023-02-07 19:50 分类：问答
recover local_db.bin

using App Engine and Java I decided to delete the local datastore located in local_db.bin as I had made some changes to class models contained in it. Mistake![详细]

2023-02-07 16:53 分类：问答