Recyclers

Yield true the session is idle (i.e., that there is no ongoing transaction), otherwise yield false. This check does not require network IO.

Ensure the session is idle, then remove all channel listeners and reset all variables to system defaults. Note that this is usually more work than you need to do. If your application isn't running arbitrary statements then minimal might be more efficient.

Ensure the session is idle, then run a trivial query to ensure the connection is in working order. In most cases this check is sufficient.

Reset all variables to system defaults and yield true.

Remove all channel listeners and yield true.