Using Oracle Text with Apex

Question

Can someone point me to some resources on how to integrate Oracle Text and APEX to do searches, highlight results, etc (all the features of Oracle Text)?
The data to be indexed is in files on the filesystem, so I would like to keep it that way and use the FILE_DATASTORE option for Text.
Thanks for any pointers.
Update: Yes, I did see http://www.oracle.com/technology/products/database/application_express/pdf/apex_text_application_v1.6.pdf
but the search results there just returns the URL/file containing the "hit". It doesn't show the actual text fragment that caused the match, doesn't highlight it, etc. I am looking for a real Google-like search. Hm, having said that, I might as well use Google Desktop! Nah, where's the fun in that?

Answer 1

This is a very simple application for my own use. It started life in 8i when there were fewer Text options.
As such, it uses the query string as entered. This returns all of the matches:
select msgid, msgdate, Box, fromaddr, subject
  from eudora.inbox
where contains(body, :P703_MailSearch) > 0
order by msgdate descI display the selected result like this:
select subject,
  Replace(eudora.mmarkup(:P704_MSGID, :P702_SEARCH), Chr(13), '<BR>') Body
  from eudora.inbox
where msgid = :P704_MSGIDIn a newer application, I experimented with the CTXCAT grammer.
That query looks like this:
select m.ID, m.pdpno, m.shortdesc
  from pdp_mast m
where contains(m.dphistory, '<query><textquery lang="ENGLISH" grammar="CTXCAT">
                                         ' || :P1_Text || '
                                     </textquery>
                                  <score datatype="INTEGER"/>
                              </query>') > 0     
    or contains(m.shortdesc, '<query><textquery lang="ENGLISH" grammar="CTXCAT">
                                         ' || :P1_Text || '
                                     </textquery>
                                  <score datatype="INTEGER"/>
                              </query>') > 0As always, once you figure out the syntax, its easy to make it work in Apex.
Text indexes are very fast. On my old 600MHz PC, searches in 250MB of text take less than a second.