Registry of lazily created AsyncNodes keyed by stable node id.
Sessions share a NodeMap so fragments arriving before or after an action
port is opened converge on the same store and node object. The factory is
the persistence extension point: use an in-memory store locally or inject a
distributed store when several agent processes must share stream state.
Registry of lazily created AsyncNodes keyed by stable node id.
Sessions share a NodeMap so fragments arriving before or after an action port is opened converge on the same store and node object. The factory is the persistence extension point: use an in-memory store locally or inject a distributed store when several agent processes must share stream state.