Apache Sling API
· The Apache Sling API defines an extension to the Servlet
API 2.4 to provide access to content and unified access
to request parameters hiding the differences between the
different methods of transferring parameters from client
to server. Note that the Apache Sling API bundle does not
include the Servlet API but instead requires the API to
be provided by the Servlet container in which the Apache
Sling framework is running or by another bundle.