Setting up Transaction Event Handlers

Hello,

I am looking for some help on setting up Transaction Event Handlers.

I see that custom event handlers are available here: https://gist.github.com/psuman/3118371

My question is where to put these files in the neo4j file structure? Is there any documentation I can read or tutorials on how to set these up?

Thanks in advance,
James

I have created a repo with an example : https://github.com/ikwattro/neo4j-transaction-event-listener-extension

I wrote a very similar extension factory class - it works fine in a test with neo4j-harness. Then I copied the jar file into the plugins directory of the database in a Desktop installation, and restarted it, but the event listener doesn't work. Am I missing a step?