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Session checkout - #108
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Session checkout#108
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lejeunerenard
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It would be nice if session() used _makeSnaphot() if it needs a snapshot and it could use options. Then it would mean that all new hyperdb instances were isolated to definiing the engine and creating snapshots.
Adds support for setting the session config options on the hyperbee2 engine while remaining generic. The options are stored on the HyperDB instance because of snapshots being updated during `.update()`. Engines now support a `snapshotFrom` method which takes the current snapshot and the options giving a new configured version. This happens only in `_createSnapshot()` as it is the shared way of creating the new view / hyperdb instance. `snapshotFrom()` is necessary to maintain the position of the current snapshot just with options. This all supports setting the session config not just for transactions, but also for calling `db.snapshot()` at the top level (aka on HyperDB instance).
IE the shape is dictated by the underlying engine module so should be driven by that instead of being enforced at the engine level.
Add noop `snapshotFrom` to the other engines
lejeunerenard
added this pull request to stack #111
September 30, 2026 20:03
lejeunerenard
previously approved these changes
Sep 30, 2026
lejeunerenard
approved these changes
Sep 30, 2026
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Needed by core - enables checking out with a timeout.