class DbLockedConnectionPool extends JdbcDataSource with FlagCloseable with HasCloseContext with NamedLogging with StateMachine[State]

A pool of DbLockedConnection for writes guarded by a main lock. It implements the slick.jdbc.JdbcDataSource trait to be used by slick.

The pool is considered active iff the main connection is active, i.e., the connection is healthy and the lock acquired. If the main connection becomes inactive, the pool of connections are ramped down and the pool periodically attempts to become active again. Once a pool becomes active, it waits for the other pool to ramp down by acquiring exclusive access to the pool's shared lock.

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Inherited
  1. DbLockedConnectionPool
  2. StateMachine
  3. NamedLogging
  4. HasCloseContext
  5. FlagCloseable
  6. JdbcDataSource
  7. Closeable
  8. AutoCloseable
  9. AnyRef
  10. Any
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Visibility
  1. Public
  2. Protected

Type Members

  1. case class ReaderState(count: Int, readers: MultiSet[String]) extends Product with Serializable
    Definition Classes
    FlagCloseable

Value Members

  1. object ReaderState extends Serializable
    Definition Classes
    FlagCloseable
  2. final def !=(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  3. final def ##: Int
    Definition Classes
    AnyRef → Any
  4. final def ==(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  5. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  6. def clone(): AnyRef
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.CloneNotSupportedException]) @native() @HotSpotIntrinsicCandidate()
  7. final def close(): Unit

    Blocks until all earlier tasks have completed and then prevents further tasks from being run.

    Blocks until all earlier tasks have completed and then prevents further tasks from being run.

    Definition Classes
    FlagCloseable → AutoCloseable
    Annotations
    @SuppressWarnings()
  8. implicit val closeContext: CloseContext
    Definition Classes
    HasCloseContext
  9. def closingTimeout: FiniteDuration
    Attributes
    protected
    Definition Classes
    FlagCloseable
  10. val config: DbLockedConnectionPoolConfig
  11. def createConnection(): Connection
    Definition Classes
    DbLockedConnectionPool → JdbcDataSource
  12. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  13. def equals(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef → Any
  14. final def getClass(): Class[_ <: AnyRef]
    Definition Classes
    AnyRef → Any
    Annotations
    @native() @HotSpotIntrinsicCandidate()
  15. def hashCode(): Int
    Definition Classes
    AnyRef → Any
    Annotations
    @native() @HotSpotIntrinsicCandidate()
  16. def internalPerformUnlessClosingF[A](name: String)(f: => Future[A])(implicit ec: ExecutionContext, traceContext: TraceContext): UnlessShutdown[Future[A]]
    Attributes
    protected
    Definition Classes
    FlagCloseable
  17. def isActive: Boolean
  18. def isClosing: Boolean

    Check whether we're closing.

    Check whether we're closing. Susceptible to race conditions; unless you're using using this as a flag to the retry lib or you really know what you're doing, prefer performUnlessClosing and friends.

    Definition Classes
    FlagCloseable
  19. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  20. def keepTrackOfOpenFutures: Boolean

    track running futures on shutdown

    track running futures on shutdown

    set to true to get detailed information about all futures that did not complete during shutdown. if set to false, we don't do anything.

    Attributes
    protected
    Definition Classes
    FlagCloseable
  21. def logger: TracedLogger
    Attributes
    protected
    Definition Classes
    NamedLogging
  22. val loggerFactory: NamedLoggerFactory
    Attributes
    protected
    Definition Classes
    DbLockedConnectionPoolNamedLogging
  23. implicit def loggingContext(implicit traceContext: TraceContext): ErrorLoggingContext
    Attributes
    protected
    Definition Classes
    NamedLogging
  24. val maxConnections: Option[Int]
    Definition Classes
    DbLockedConnectionPool → JdbcDataSource
  25. def maxSleepMillis: Long
    Attributes
    protected
    Definition Classes
    FlagCloseable
  26. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  27. def noTracingLogger: Logger
    Attributes
    protected
    Definition Classes
    NamedLogging
  28. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native() @HotSpotIntrinsicCandidate()
  29. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native() @HotSpotIntrinsicCandidate()
  30. def onClosed(): Unit
  31. def performUnlessClosing[A](name: String)(f: => A)(implicit traceContext: TraceContext): UnlessShutdown[A]

    Performs the task given by f unless a shutdown has been initiated.

    Performs the task given by f unless a shutdown has been initiated. The shutdown will only begin after f completes, but other tasks may execute concurrently with f, if started using this function, or one of the other variants (performUnlessClosingF and performUnlessClosingEitherT). The tasks are assumed to take less than closingTimeout to complete.

    DO NOT CALL this.close as part of f, because it will result in a deadlock.

    f

    The task to perform

    returns

    scala.None$ if a shutdown has been initiated. Otherwise the result of the task.

    Definition Classes
    FlagCloseable
  32. def performUnlessClosingEitherT[E, R](name: String, onClosing: => E)(etf: => EitherT[Future, E, R])(implicit ec: ExecutionContext, traceContext: TraceContext): EitherT[Future, E, R]

    Performs the EitherT[Future] given by etf unless a shutdown has been initiated, in which case the provided error is returned instead.

    Performs the EitherT[Future] given by etf unless a shutdown has been initiated, in which case the provided error is returned instead. Both etf and the error are lazy; etf is only evaluated if there is no shutdown, the error only if we're shutting down. The shutdown will only begin after etf completes, but other tasks may execute concurrently with etf, if started using this function, or one of the other variants (performUnlessClosing and performUnlessClosingF). The tasks are assumed to take less than closingTimeout to complete.

    DO NOT CALL this.close as part of etf, because it will result in a deadlock.

    etf

    The task to perform

    Definition Classes
    FlagCloseable
  33. def performUnlessClosingEitherTF[E, R](name: String, onClosing: => E)(etf: => EitherT[Future, E, Future[R]])(implicit ec: ExecutionContext, traceContext: TraceContext): EitherT[Future, E, Future[R]]
    Definition Classes
    FlagCloseable
  34. def performUnlessClosingEitherU[E, R](name: String)(etf: => EitherT[Future, E, R])(implicit ec: ExecutionContext, traceContext: TraceContext): EitherT[FutureUnlessShutdown, E, R]
    Definition Classes
    FlagCloseable
  35. def performUnlessClosingF[A](name: String)(f: => Future[A])(implicit ec: ExecutionContext, traceContext: TraceContext): FutureUnlessShutdown[A]

    Performs the Future given by f unless a shutdown has been initiated.

    Performs the Future given by f unless a shutdown has been initiated. The future is lazy and not evaluated during shutdown. The shutdown will only begin after f completes, but other tasks may execute concurrently with f, if started using this function, or one of the other variants (performUnlessClosing and performUnlessClosingEitherT). The tasks are assumed to take less than closingTimeout to complete.

    DO NOT CALL this.close as part of f, because it will result in a deadlock.

    f

    The task to perform

    returns

    The future completes with com.digitalasset.canton.lifecycle.UnlessShutdown.AbortedDueToShutdown if a shutdown has been initiated. Otherwise the result of the task wrapped in com.digitalasset.canton.lifecycle.UnlessShutdown.Outcome.

    Definition Classes
    FlagCloseable
  36. def runOnShutdown[T](task: RunOnShutdown)(implicit traceContext: TraceContext): Unit

    Register a task that will run onClose after all "performUnlessShutdown" tasks have finished

    Register a task that will run onClose after all "performUnlessShutdown" tasks have finished

    Definition Classes
    FlagCloseable
  37. def runStateChanged(waitingState: Boolean = false): Unit
    Attributes
    protected
    Definition Classes
    FlagCloseable
    Annotations
    @VisibleForTesting()
  38. def setPassive()(implicit traceContext: TraceContext): EitherT[Future, String, Unit]
  39. val stateRef: AtomicReference[State]
    Attributes
    protected
    Definition Classes
    DbLockedConnectionPoolStateMachine
  40. final def synchronized[T0](arg0: => T0): T0
    Definition Classes
    AnyRef
  41. val timeouts: ProcessingTimeout
    Attributes
    protected
    Definition Classes
    DbLockedConnectionPoolFlagCloseable
  42. def toString(): String
    Definition Classes
    AnyRef → Any
  43. def transition[E](expectedState: State, newState: State, error: (State) => E): Either[E, Unit]
    Attributes
    protected
    Definition Classes
    StateMachine
  44. def transition[E, T <: State](getExpectedState: (State) => Option[T], newState: State, unexpectedStateFn: (State) => E): Either[E, T]
    Attributes
    protected
    Definition Classes
    StateMachine
  45. def transitionOrFail(expectedState: State, newState: State)(implicit traceContext: TraceContext): Unit
    Attributes
    protected
    Definition Classes
    StateMachine
  46. def transitionOrFail[T <: State](expectedState: String, getExpectedState: (State) => Option[T], newState: State)(implicit traceContext: TraceContext): T
    Attributes
    protected
    Definition Classes
    StateMachine
  47. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException])
  48. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException]) @native()
  49. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException])

Deprecated Value Members

  1. def finalize(): Unit
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.Throwable]) @Deprecated
    Deprecated

Inherited from StateMachine[State]

Inherited from NamedLogging

Inherited from HasCloseContext

Inherited from FlagCloseable

Inherited from JdbcDataSource

Inherited from Closeable

Inherited from AutoCloseable

Inherited from AnyRef

Inherited from Any

Ungrouped