tree 16413540fff338326cca57b0d328145a82c478ad
parent afbcab14ff1d64f41ee2e9197ad0e308bee6b3a3
author David Pursehouse <dpursehouse@collab.net> 1526714456 +0900
committer David Pursehouse <dpursehouse@collab.net> 1526714460 +0900

ForwardedIndexingHandler: Make doDelete abstract

doDelete has a default implementation that throws a "cannot delete"
exception, and it is only overridden in the ForwardedIndexChangeHandler
which actually supports deletion from the index.

However, this default implementation results in two warnings from
Eclipse:

- The id parameter is not used
- The declared IOException is not thrown

Make the doDelete method abstract, and move the exception throwing in
to concrete methods in the derived classes, throwing exceptions with
more specific messages.

Change-Id: Idefa433446f1956ae2e0e275d0996f02c29134df