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. PromiseUnlessShutdownFactory
  6. FlagCloseable
  7. PerformUnlessClosing
  8. HasSynchronizeWithReaders
  9. HasSynchronizeWithClosing
  10. OnShutdownRunner
  11. HasRunOnClosing
  12. HasUnlessClosing
  13. JdbcDataSource
  14. Closeable
  15. AutoCloseable
  16. AnyRef
  17. Any
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Visibility
  1. Public
  2. Protected

Value Members

  1. final def !=(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  2. final def ##: Int
    Definition Classes
    AnyRef → Any
  3. final def ==(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  4. def addReader(reader: String)(implicit traceContext: TraceContext): UnlessShutdown[ReaderHandle]

    TODO(#16601) Make this method private once PerformUnlessClosing doesn't need it any more

    TODO(#16601) Make this method private once PerformUnlessClosing doesn't need it any more

    Attributes
    protected[this]
    Definition Classes
    HasSynchronizeWithReaders
  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]) @IntrinsicCandidate() @native()
  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
    FlagCloseableOnShutdownRunner → AutoCloseable
  8. implicit val closeContext: CloseContext
    Definition Classes
    HasCloseContext
  9. def closingTimeout: FiniteDuration
    Attributes
    protected
    Definition Classes
    FlagCloseablePerformUnlessClosing
  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. implicit def errorLoggingContext(implicit traceContext: TraceContext): ErrorLoggingContext
    Attributes
    protected
    Definition Classes
    NamedLogging
  15. final def getClass(): Class[_ <: AnyRef]
    Definition Classes
    AnyRef → Any
    Annotations
    @IntrinsicCandidate() @native()
  16. def hashCode(): Int
    Definition Classes
    AnyRef → Any
    Annotations
    @IntrinsicCandidate() @native()
  17. def isActive: Boolean

    The pool is active and the main connection is active

  18. def isClosing: Boolean

    Check whether we're closing.

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

    Definition Classes
    OnShutdownRunnerHasUnlessClosing
  19. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  20. def isPassive: Boolean
  21. def keepTrackOfReaderCallStack: Boolean

    Set this to true to get detailed information about all futures that did not complete during shutdown.

    Set this to true to get detailed information about all futures that did not complete during shutdown.

    Attributes
    protected[this]
    Definition Classes
    PerformUnlessClosingHasSynchronizeWithReaders
  22. def logger: TracedLogger
    Attributes
    protected
    Definition Classes
    NamedLogging
  23. val loggerFactory: NamedLoggerFactory
    Attributes
    protected
    Definition Classes
    DbLockedConnectionPoolNamedLogging
  24. val maxConnections: Option[Int]
    Definition Classes
    DbLockedConnectionPool → JdbcDataSource
  25. def mkPromise[A](description: String, futureSupervisor: FutureSupervisor, logAfter: Duration = 10.seconds, logLevel: Level = Level.DEBUG)(implicit elc: ErrorLoggingContext): PromiseUnlessShutdown[A]

    Use this method to create a PromiseUnlessShutdown that will automatically be cancelled when the close context is closed.

    Use this method to create a PromiseUnlessShutdown that will automatically be cancelled when the close context is closed. This allows proper clean up of stray promises when the node is transitioning to a passive state.

    Note: you should *not* invoke success on the returned promise but rather use trySuccess. The reason is that the call to success may fail in case of shutdown.

    Definition Classes
    PromiseUnlessShutdownFactory
  26. def nameInternal: String
    Attributes
    protected[this]
    Definition Classes
    PerformUnlessClosingHasSynchronizeWithReaders
  27. implicit def namedLoggingContext(implicit traceContext: TraceContext): NamedLoggingContext
    Attributes
    protected
    Definition Classes
    NamedLogging
  28. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  29. def noTracingLogger: Logger
    Attributes
    protected
    Definition Classes
    NamedLogging
  30. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @IntrinsicCandidate() @native()
  31. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @IntrinsicCandidate() @native()
  32. def onCloseFailure(e: Throwable): Unit
    Attributes
    protected
    Definition Classes
    PerformUnlessClosing
  33. def onClosed(): Unit
  34. final def onFirstClose(): 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
    PerformUnlessClosingOnShutdownRunner
  35. def remainingReaders(): Seq[String]
    Attributes
    protected[this]
    Definition Classes
    HasSynchronizeWithReaders
  36. def removeReader(handle: ReaderHandle): Unit

    TODO(#16601) Make this method private once PerformUnlessClosing doesn't need it any more

    TODO(#16601) Make this method private once PerformUnlessClosing doesn't need it any more

    Attributes
    protected[this]
    Definition Classes
    HasSynchronizeWithReaders
  37. def runOnClose(task: RunOnClosing): UnlessShutdown[LifeCycleRegistrationHandle]

    Schedules the given task to be run upon closing.

    Schedules the given task to be run upon closing.

    returns

    An com.digitalasset.canton.lifecycle.UnlessShutdown.Outcome indicates that the task will have been run when the LifeCycleManager's closeAsync method completes or when AutoCloseable's close method returns, unless the returned LifeCycleRegistrationHandle was used to cancel the task or the task has been done beforehand. com.digitalasset.canton.lifecycle.UnlessShutdown.AbortedDueToShutdown if the task is not run due to closing. This always happens if isClosing returns true.

    Definition Classes
    OnShutdownRunnerHasRunOnClosing
  38. def runOnOrAfterClose(task: RunOnClosing)(implicit traceContext: TraceContext): LifeCycleRegistrationHandle

    Register a task to run when closing is initiated, or run it immediately if closing is already ongoing.

    Register a task to run when closing is initiated, or run it immediately if closing is already ongoing. Unlike runOnClose, this method does not guarantee that this task will have run by the time the LifeCycleManager's closeAsync method completes or AutoCloseable's close returns. This is because the task is run immediately if the component has already been closed.

    Definition Classes
    HasRunOnClosing
  39. final def runOnOrAfterClose_(task: RunOnClosing)(implicit traceContext: TraceContext): Unit

    Variant of runOnOrAfterClose that does not return a com.digitalasset.canton.lifecycle.LifeCycleRegistrationHandle.

  40. def runTaskUnlessDone(task: RunOnClosing)(implicit traceContext: TraceContext): Unit
    Attributes
    protected[this]
    Definition Classes
    OnShutdownRunnerHasRunOnClosing
  41. def setPassive()(implicit traceContext: TraceContext): EitherT[FutureUnlessShutdown, String, Unit]
  42. val stateRef: AtomicReference[State]
    Attributes
    protected
    Definition Classes
    DbLockedConnectionPoolStateMachine
  43. def synchronizeWithClosing[F[_], A](name: String)(f: => F[A])(implicit traceContext: TraceContext, F: Thereafter[F], A: CanAbortDueToShutdown[F]): F[A]

    Runs the computation f only if the component is not yet closing.

    Runs the computation f only if the component is not yet closing. If so, the component will delay releasing its resources until f has completed (as defined by the com.digitalasset.canton.util.Thereafter instance) or the synchronizeWithClosingPatience has elapsed.

    DO NOT CALL this.close as part of f, because it will result in a deadlock. DO NOT PUT retries, especially indefinite ones, inside f.

    returns

    The computation completes with com.digitalasset.canton.lifecycle.UnlessShutdown.AbortedDueToShutdown if f has not run. Otherwise it is the result of running f.

    Definition Classes
    HasSynchronizeWithClosing
    See also

    HasRunOnClosing.isClosing

  44. def synchronizeWithClosingF[A](name: String)(f: => Future[A])(implicit ec: ExecutionContext, traceContext: TraceContext): FutureUnlessShutdown[A]

    Convenience method for synchronizing on Futures instead of FutureUnlessShutdowns.

    Convenience method for synchronizing on Futures instead of FutureUnlessShutdowns. Equivalent to

    synchronizeWithClosing(name)(FutureUnlessShutdown.outcomeF(f))
    Definition Classes
    PerformUnlessClosing
  45. def synchronizeWithClosingPatience: FiniteDuration
    Attributes
    protected[this]
    Definition Classes
    PerformUnlessClosingHasSynchronizeWithReaders
  46. def synchronizeWithClosingSync[A](name: String)(f: => A)(implicit traceContext: TraceContext): UnlessShutdown[A]

    Runs the computation f only if the component is not yet closing.

    Runs the computation f only if the component is not yet closing. If so, the component will delay releasing its resources until f has finished or the synchronizeWithClosingPatience has elapsed.

    DO NOT CALL this.close as part of f, because it will result in a deadlock. DO NOT PUT retries, especially indefinite ones, inside f.

    returns

    com.digitalasset.canton.lifecycle.UnlessShutdown.AbortedDueToShutdown if f has not run.

    Definition Classes
    HasSynchronizeWithClosing
    Annotations
    @SuppressWarnings()
    See also

    HasRunOnClosing.isClosing

  47. def synchronizeWithClosingUS[F[_], A](name: String)(f: => F[A])(implicit traceContext: TraceContext, F: Thereafter[F]): UnlessShutdown[F[A]]

    Runs the computation f only if the component is not yet closing.

    Runs the computation f only if the component is not yet closing. If so, the component will delay releasing its resources until f has completed (as defined by the com.digitalasset.canton.util.Thereafter instance) or the synchronizeWithClosingPatience has elapsed.

    DO NOT CALL this.close as part of f, because it will result in a deadlock. DO NOT PUT retries, especially indefinite ones, inside f.

    returns

    com.digitalasset.canton.lifecycle.UnlessShutdown.AbortedDueToShutdown if f has not run. Otherwise the result of running f.

    Definition Classes
    PerformUnlessClosingHasSynchronizeWithClosing
    See also

    HasRunOnClosing.isClosing

  48. def synchronizeWithReaders()(implicit traceContext: TraceContext): Boolean
    Attributes
    protected[this]
    Definition Classes
    HasSynchronizeWithReaders
  49. final def synchronized[T0](arg0: => T0): T0
    Definition Classes
    AnyRef
  50. val timeouts: ProcessingTimeout
    Attributes
    protected
    Definition Classes
    DbLockedConnectionPoolFlagCloseable
  51. def toString(): String
    Definition Classes
    AnyRef → Any
  52. def transition[E](expectedState: State, newState: State, error: (State) => E): Either[E, Unit]
    Attributes
    protected
    Definition Classes
    StateMachine
  53. def transition[E, T <: State](getExpectedState: (State) => Option[T], newState: State, unexpectedStateFn: (State) => E): Either[E, T]
    Attributes
    protected
    Definition Classes
    StateMachine
  54. def transitionEither[E, T <: State, U <: State](getExpectedState: (State) => Option[Either[T, U]], newState: State, unexpectedStateFn: (State) => E): Either[E, Either[T, U]]
    Attributes
    protected
    Definition Classes
    StateMachine
  55. def transitionOrFail[S1 <: State](newState: State)(implicit arg0: ClassTag[S1], traceContext: TraceContext): Unit
    Attributes
    protected
    Definition Classes
    StateMachine
  56. def transitionOrFail(expectedState: State, newState: State)(implicit traceContext: TraceContext): Unit
    Attributes
    protected
    Definition Classes
    StateMachine
  57. def transitionOrFail[T <: State](expectedState: String, getExpectedState: (State) => Option[T], newState: State)(implicit traceContext: TraceContext): T
    Attributes
    protected
    Definition Classes
    StateMachine
  58. final def unlessClosing[F[_], A](fa: => F[A])(implicit F: CanAbortDueToShutdown[F]): F[A]

    Runs the computation fa unless isClosing returns true.

    Runs the computation fa unless isClosing returns true.

    This method does not delay the closing while fa is running, unlike the methods in HasSynchronizeWithClosing. Accordingly, this method is useful for intermittent checks whether the result of the computation is still relevant.

    returns

    The result of fa or com.digitalasset.canton.lifecycle.UnlessShutdown.AbortedDueToShutdown if isClosing is true

    Definition Classes
    HasUnlessClosing
    Annotations
    @inline()
  59. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException])
  60. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException])
  61. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException])
  62. def withReader[F[_], A](name: String)(f: => F[A])(implicit traceContext: TraceContext, F: Thereafter[F]): UnlessShutdown[F[A]]
    Attributes
    protected[this]
    Definition Classes
    HasSynchronizeWithReaders

Deprecated Value Members

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

    (Since version 9)

Inherited from StateMachine[State]

Inherited from NamedLogging

Inherited from HasCloseContext

Inherited from FlagCloseable

Inherited from PerformUnlessClosing

Inherited from OnShutdownRunner

Inherited from HasRunOnClosing

Inherited from HasUnlessClosing

Inherited from JdbcDataSource

Inherited from Closeable

Inherited from AutoCloseable

Inherited from AnyRef

Inherited from Any

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