PostCommitHook¶

PostCommitHook is an abstraction of post-commit hooks to be executed at the end of a successful transaction commit.

Contract¶

Name¶

name: String

User-friendly name of the hook (for error reporting)

See:

Used when:

DeltaErrorsBase is requested to postCommitHookFailedException
OptimisticTransactionImpl is requested to runPostCommitHook (that failed)

Executing Post-Commit Hook¶

run(
  spark: SparkSession,
  txn: OptimisticTransactionImpl,
  committedVersion: Long,
  postCommitSnapshot: Snapshot,
  committedActions: Seq[Action]): Unit

Procedure

run is a procedure (returns Unit) so what happens inside stays inside (paraphrasing the former advertising slogan of Las Vegas, Nevada).