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trait HaCoordinator extends AnyRef

To add High Availability related features to a program, which intends to use database-connections to do it's work. Features include:

  • Safety: mutual exclusion of these programs ensured by DB locking mechanisms
  • Availability: release of the exclusion is detected by idle programs, which start competing for the lock to do their work.
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  1. abstract def protectedExecution(initializeExecution: (ConnectionInitializer) => Future[Handle]): Handle

    Execute in High Availability mode.

    Execute in High Availability mode. Wraps around the Handle of the execution.

    initializeExecution

    HaCoordinator provides a ConnectionInitializer that must to be used for all database connections during execution Future[Handle] embodies asynchronous initialization of the execution (e.g. not the actual work. That asynchronous execution completes with the completed Future of the Handle)

    returns

    the new Handle, which is available immediately to observe and interact with the complete program here

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  1. def finalize(): Unit
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