This is the first part of a series of stories I’m planning to write on developing APIs. I’m hoping to help share some techniques and my approach to developing APIs along the way.

To Project Or Not Project

While writing a ContentProvider for an Android app I wondered, when I call query() on a ContentProvider, should I start specifying a projection? One of the parameters to ContentProvider.query() is an array of Strings, called the projection. Each element in the array should be the…