No subject

would be dropped in and the the developers would disappear, so the 
maintinance, documentations, etc issues that I was listing should not be 
an issue.

so if you create a generic 'search engine' interface and use it for Solr 
and modify Zebra to use it there is probably very little that could derail 
your work.

such a interface could then have someone else create a google module 
(either dealing with a google search appliance, or talking to a google 
cloud service, or both), and it's possible that a couple years down the 
line someone comes up with a new search module that everyone likes so much 
that neither Zebra or Solr are used by anyone. If that happens, it would 
still be a win for this project, and for the developers who introduce Solr 
(because they made all the other search experimentation possible)

David Lang