Using the peristance manager, how can I retrieve a child object knowing a child property and the parent key?
When I deploy an开发者_运维技巧 exploded war file datanucleus fails with following error Caused by: org.datanucleus.exceptions.ClassNotResolvedException: Class \"JDOTutorial.war.WEB-INF.classes.com
I\'m trying to map an existing mongodb database to domain objects using datanuclues (3.0.0-m6) / JDO.
I would like to know if the following is possible in JDO. I have a 1-N relationship between a Parent and a Child class. So my classes look like
For the Eclipse App Engine plugin, the answer is easy - go to the Project Propert开发者_运维百科ies -> Builders and disable the Enhancer. Is there a way to do the same in NetBeans (using the NetBeans
I\'m currently implementing a map application. Part of the data is stored in a database, part in the file system. As the amount of model objects has grown and I could additionally benefit from Lazy Lo
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My GWT project is setup with google app engine. Now I want to run the hibernate code in Google app engine.
I have a attribute of type Set in my persistable class. I am persisting to a H2 database. The class persists correctly and I can view the data using the H2 console and see the Set attribute has been s
We are using JDO in one of our projects. This has been running for quite a while and naturally we need to change the model a bit.
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