What is the preferred way of using GAE datastore PersistenceManager for web app? GAE instructions are a bit ambiguous on the matter.
I got this \"javax.jdo.JDOFatalUserException: Error in meta-data for don.Comment.id: Cannot have a java.lang.String primary key and be a child object (owning field is don.Post.comments).
Right, I don\'t know if I\'m barking entirely up the wrong tree here - I\'m finding JDO and开发者_StackOverflow社区 the Google AppEngine a bit tricky to get the hang of. Anyway, here goes.
Hi i am hitting the common error \"managed by a different object manager\" I have looked around online and not found a solution that fits my problem. I am calling the following code from a JSP page
I have a java web application built on Stuts2/Google Guice/JPA.It u开发者_开发百科ses hibernate as the JPA vendor.I would like to add support so it can be used on Google\'s App Engine.Of course I\'m r
I\'m currently developing in GAE and I have to query like this using JDO: SELECT table1.column1, table2.column2
Has anyone successfully configured JDO datanucleus default to google app engine to work on a local database?
Is it possible (and does it make sense) to use the JDO Level 2 Cache for the Google App Engine Datastore?
Does anyone have experience with KODO JDO\'s distributed cache mechanism? I would like to know: 1) what is the latency like between distributed cache updates (so if two users are hitting two separate
According to JDO, you can use PersistenceManager.getObjectsById to load mult开发者_C百科iple entity instances by their object id.
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