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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    June 2011
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Configuring the App Engine development server

Posted by David Chandler on June 30, 2011

Last week, I posted a way to preserve the local Datastore when using Maven by setting a system property datastore.backing_store=path. Although it’s not explicitly documented, it appears that many dev mode services can be configured this way. The configuration flags are documented with the local unit testing Javadocs like this one for LocalDatastoreService. Click on the property, then the link to Constant Field Values to find the associated String you can use in a -D argument as shown in last week’s post. Note that unit tests can configure services directly by calling setters on the test helper like LocalDatastoreServiceTestConfig.

Happy tweaking…


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