MoreLikeThis Clarifications

[Max Bridgewater <ma...@gmail.com>]

I am trying to confirm my understanding of MLT after going through
following page:
https://cwiki.apache.org/confluence/display/solr/MoreLikeThis.

Three approaches are mentioned:

1) Use it as a request handler and send text to the MoreLikeThis request
handler as needed.
2) Use it as a search component and MLT is performed on every document
returned
3) You use it as a request handler but with externally supplied text.


What are example queries in each case and what config changes are required
for each case?

There is also MLTQParser. When can I use this parser as opposed to use any
of the three above approaches?

Thanks,
Max.