title: what is difference between ResultSetExtractor vs Rowmapper?
body: <p>I worked on both row mapper and resultset extractor call back interfaces.I found difference i.e.,</p>
  
  <p>1.Row mapper can be processing per row basis.But Resultset extractor we can naviagte all rows and return type is object.</p>
  
  <p>Is there any difference other than above?.How the works Rowmapper internal and return type is list?.</p>