Creating a Custom Non-Documentum xPlore IndexAgent

msroth

Our system consists of Documentum and an external database.  I need to create an IndexAgent that will cull metadata from the external database and send it to xPlore for indexing.  A search from our custom frontend should return results for both the content in Documentum and the metadata in the database.  I'm not sure how best to proceed:

• Is there reference code for building a custom index agent?  If so, can someone point me to it.  I see that there is API documentation and an extensible DTD, but no reference index agent code.
• If I register the the external database tables, will the xPlore Index Agent "automagically" index it?
• The Dev/Admin guide suggests building a TBO to "inject" external metadata into the object for indexing, but I don't want to burden the Documentum object with all that external metadata, I'd rather the index agent find it itself.

Any suggestions would be appreciated.