Txn

Registers a thunk to be executed after the transaction successfully committed.

The returned source is confluent.

The confluent handle is enhanced with the meld method.

Creates a new in-memory transactional map for storing and retrieving values based on a mutable's identifier as key. If a system is confluently persistent, the get operation will find the most recent key that matches the search key. Objects are not serialized but kept live in memory.

Id maps can be used by observing views to look up associated view meta data even though they may be presented with a more recent access path of the model peer (e.g. when a recent event is fired and observed).

Every transaction has a plain Scala-STM transaction as a peer. This comes handy for setting up custom things like TxnLocal, TMap, or calling into the hooks of concurrent.stm.Txn. It is also needed when re-wrapping the transaction of one system into another.