class DbLockedConnection extends NamedLogging with FlagCloseable with StateMachine[State]
Maintains the combination of a persistent DB connection and a DB lock acquired on that connection.
If the connection is closed or becomes invalid, it will try to rebuild the connection and re-acquire the lock.
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- final def asInstanceOf[T0]: T0
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- def cancelShutdownTask(token: Long): Unit
Removes a shutdown task from the list using a token returned by runOnShutdown
Removes a shutdown task from the list using a token returned by runOnShutdown
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- OnShutdownRunner
- def clone(): AnyRef
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- protected[lang]
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- @throws(classOf[java.lang.CloneNotSupportedException]) @native() @IntrinsicCandidate()
- 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.
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- FlagCloseable → OnShutdownRunner → AutoCloseable
- def closingTimeout: FiniteDuration
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- protected
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- FlagCloseable → PerformUnlessClosing
- def containsShutdownTask(token: Long): Boolean
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- OnShutdownRunner
- final def eq(arg0: AnyRef): Boolean
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- def equals(arg0: AnyRef): Boolean
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- implicit def errorLoggingContext(implicit traceContext: TraceContext): ErrorLoggingContext
- Attributes
- protected
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- NamedLogging
- def get: Either[DbLockedConnectionError, KeepAliveConnection]
Returns a connection only if the connection is available and the lock has been acquired.
Returns a connection only if the connection is available and the lock has been acquired.
The consumer should get a connection when needed and not cache the returned connection to ensure that the connection is healthy when used.
- final def getClass(): Class[_ <: AnyRef]
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- AnyRef → Any
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- @native() @IntrinsicCandidate()
- def hashCode(): Int
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- @native() @IntrinsicCandidate()
- def internalPerformUnlessClosingF[A](name: String)(f: => Future[A])(implicit ec: ExecutionContext, traceContext: TraceContext): UnlessShutdown[Future[A]]
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- protected
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- PerformUnlessClosing
- def isActive: Boolean
- 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
performUnlessClosingand friends.- Definition Classes
- OnShutdownRunner
- final def isInstanceOf[T0]: Boolean
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- Any
- 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.
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- def logger: TracedLogger
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- protected
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- NamedLogging
- val loggerFactory: NamedLoggerFactory
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- protected
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- DbLockedConnection → NamedLogging
- def maxSleepMillis: Long
How often to poll to check that all tasks have completed.
How often to poll to check that all tasks have completed.
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- protected
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- PerformUnlessClosing
- implicit def namedLoggingContext(implicit traceContext: TraceContext): NamedLoggingContext
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- NamedLogging
- final def ne(arg0: AnyRef): Boolean
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- def noTracingLogger: Logger
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- NamedLogging
- final def notify(): Unit
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- @native() @IntrinsicCandidate()
- final def notifyAll(): Unit
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- @native() @IntrinsicCandidate()
- def onCloseFailure(e: Throwable): Unit
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- protected
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- PerformUnlessClosing
- def onClosed(): Unit
- Definition Classes
- DbLockedConnection → PerformUnlessClosing
- 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
- PerformUnlessClosing → OnShutdownRunner
- Annotations
- @SuppressWarnings()
- def performUnlessClosing[A](name: String)(f: => A)(implicit traceContext: TraceContext): UnlessShutdown[A]
Performs the task given by
funless a shutdown has been initiated.Performs the task given by
funless a shutdown has been initiated. The shutdown will only begin afterfcompletes, but other tasks may execute concurrently withf, 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.closeas part off, 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
- PerformUnlessClosing
- def performUnlessClosingCheckedT[A, N, R](name: String, onClosing: => Checked[A, N, R])(etf: => CheckedT[Future, A, N, R])(implicit ec: ExecutionContext, traceContext: TraceContext): CheckedT[Future, A, N, R]
- Definition Classes
- PerformUnlessClosing
- 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
etfunless a shutdown has been initiated, in which case the provided error is returned instead.Performs the EitherT[Future] given by
etfunless a shutdown has been initiated, in which case the provided error is returned instead. Bothetfand the error are lazy;etfis only evaluated if there is no shutdown, the error only if we're shutting down. The shutdown will only begin afteretfcompletes, but other tasks may execute concurrently withetf, 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.closeas part ofetf, because it will result in a deadlock.- etf
The task to perform
- Definition Classes
- PerformUnlessClosing
- 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
- PerformUnlessClosing
- def performUnlessClosingEitherU[E, R](name: String)(etf: => EitherT[Future, E, R])(implicit ec: ExecutionContext, traceContext: TraceContext): EitherT[FutureUnlessShutdown, E, R]
- Definition Classes
- PerformUnlessClosing
- def performUnlessClosingEitherUSF[E, R](name: String)(etf: => EitherT[FutureUnlessShutdown, E, R])(implicit ec: ExecutionContext, traceContext: TraceContext): EitherT[FutureUnlessShutdown, E, R]
- Definition Classes
- PerformUnlessClosing
- def performUnlessClosingF[A](name: String)(f: => Future[A])(implicit ec: ExecutionContext, traceContext: TraceContext): FutureUnlessShutdown[A]
Performs the Future given by
funless a shutdown has been initiated.Performs the Future given by
funless a shutdown has been initiated. The future is lazy and not evaluated during shutdown. The shutdown will only begin afterfcompletes, but other tasks may execute concurrently withf, 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.closeas part off, 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
- PerformUnlessClosing
- def performUnlessClosingUSF[A](name: String)(f: => FutureUnlessShutdown[A])(implicit ec: ExecutionContext, traceContext: TraceContext): FutureUnlessShutdown[A]
- Definition Classes
- PerformUnlessClosing
- def runOnShutdown[T](task: RunOnShutdown)(implicit traceContext: TraceContext): Long
Same as runOnShutdown_ but returns a token that allows you to remove the task explicitly from being run using cancelShutdownTask
Same as runOnShutdown_ but returns a token that allows you to remove the task explicitly from being run using cancelShutdownTask
- Definition Classes
- OnShutdownRunner
- def runOnShutdown_[T](task: RunOnShutdown)(implicit traceContext: TraceContext): Unit
Register a task to run when shutdown is initiated.
Register a task to run when shutdown is initiated.
You can use this for example to register tasks that cancel long-running computations, whose termination you can then wait for in "closeAsync".
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- OnShutdownRunner
- def runStateChanged(waitingState: Boolean = false): Unit
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- protected
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- OnShutdownRunner
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- @VisibleForTesting()
- def setPassive()(implicit traceContext: TraceContext): EitherT[Future, String, Unit]
- val stateRef: AtomicReference[State]
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- protected
- Definition Classes
- DbLockedConnection → StateMachine
- final def synchronized[T0](arg0: => T0): T0
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- val timeouts: ProcessingTimeout
- Attributes
- protected
- Definition Classes
- DbLockedConnection → FlagCloseable
- def toString(): String
- Definition Classes
- AnyRef → Any
- def transition[E](expectedState: State, newState: State, error: (State) => E): Either[E, Unit]
- Attributes
- protected
- Definition Classes
- StateMachine
- def transition[E, T <: State](getExpectedState: (State) => Option[T], newState: State, unexpectedStateFn: (State) => E): Either[E, T]
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- protected
- Definition Classes
- StateMachine
- 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
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- StateMachine
- def transitionOrFail(expectedState: State, newState: State)(implicit traceContext: TraceContext): Unit
- Attributes
- protected
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- StateMachine
- def transitionOrFail[T <: State](expectedState: String, getExpectedState: (State) => Option[T], newState: State)(implicit traceContext: TraceContext): T
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- protected
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- StateMachine
- final def wait(arg0: Long, arg1: Int): Unit
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- @throws(classOf[java.lang.InterruptedException])
- final def wait(arg0: Long): Unit
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- final def wait(): Unit
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