David Chandler's Journal of Java Web and Mobile Development

  • David M. Chandler

    Web app developer since 1994 and Google Cloud Platform Instructor now residing in Colorado. Besides tech, I enjoy landscape photography and share my work at ColoradoPhoto.gallery.

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Archive for November 12th, 2009

Correction: AppEngine Datastore and owned relationships

Posted by David Chandler on November 12, 2009

Last week, I mistakenly wrote that AppEngine Datastore would not retrieve Key fields (representing an unowned relationship) unless you annotated with defaultFetchGroup=”true”, but that it would automatically retrieve properties represented by an owned relationship. This was not correct, as AppEngine Datastore never allows joins. I’ve updated the original post accordingly.


Posted in AppEngine, Java Data Objects | Leave a Comment »

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