- paxos_on_change(?Term, :Goal) is det
- paxos_on_change(?Key, ?Value, :Goal) is det
- Executes the specified Goal when Key changes. paxos_on_change/2
listens for
paxos_changed(Key,Value)notifications for Key, which are emitted as the result of successful paxos_set/3 transactions. When one is received for Key, then Goal is executed in a separate thread of execution.- Arguments:
-
Term - is a compound, identical to that used for paxos_get/1. Goal - is one of: - a callable atom or term, or
- the atom
ignore, which causes monitoring for Term to be discontinued.