on
Invoked by ServerNodeManager.invoke when a deliberate action targets this node.
Default behaviour:
NodeAction.EXECUTE → delegates to process. No state-stamp wake (
post(node.copy(state = EXECUTED))) is implied; the server'sexecuteSourcescascade (if any) is the caller's responsibility.NodeAction.RESET → explicit no-op. RESET is terminal at the receiver; a generic node has no reset semantics and the rule forbids silently falling back to EXECUTE for a verb the processor does not handle.
Processors with per-source or per-verb logic (Trigger family, TaskList, DataPoint, Calculation) override this method entirely; the override fully replaces the default so there is no double-run.
Parameters
The target node as it stands at invocation time.
Identity of the node (or actor) that triggered this call — always NodeIdentity (nodeId + hostId), never a bare string.
The action being applied — NodeAction.EXECUTE or NodeAction.RESET.