Ema Java library and user_list.txt file

In the LPC 1.4 install guide, section 7.3, it discusses the layout of the user_list.txt file. Column 1 is the “username provided by the datafeed client application”. First, I’m assuming that “data file client application” is the application I wrote that is ultimately consuming the rate info.

Does this username correspond to anything configured on the Refinitiv side, or is this just an easy way for the application to indirectly reference the data in user_list.txt? In our user_list.txt, we have one user defined, let’s call it “X”. In my application i am doing this:

EmaFactory.createOmmConsumer(config.host(“host_name”).username(“X”));

This “X” in the Java code needs to match the “X” in user_list.txt, but does it have to match anything else? If we changed the user_list.txt file to be “Y” and updated the Java code to be ”Y”, would that still work, or would something be out of sync somewhere.

If I understand the overall process, we’ll need to update the user_list.txt with the new ServiceID and secret. But for my question, the scope is just on the column 1 value, assuming everything else stays the same.