Trait/Object

com.twitter.util

Monitor

Related Docs: object Monitor | package util

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trait Monitor extends AnyRef

A Monitor is a composable exception handler. It is independent of position, divorced from the notion of a call stack. Monitors do not recover values from a failed computations: It handles only true exceptions that may require cleanup.

Self Type
Monitor
See also

AbstractMonitor for an API friendly to creating instances from Java.

Linear Supertypes
AnyRef, Any
Known Subclasses
AbstractMonitor, Monitor, NullMonitor, RootMonitor
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Abstract Value Members

  1. abstract def handle(exc: Throwable): Boolean

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    Attempt to handle the exception exc.

    Attempt to handle the exception exc.

    returns

    whether the exception was handled by this Monitor

Concrete Value Members

  1. final def !=(arg0: Any): Boolean

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    Definition Classes
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  2. final def ##(): Int

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  3. final def ==(arg0: Any): Boolean

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  4. def andThen(next: Monitor): Monitor

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    A new monitor which first handles the exception with this, then passes it onto next unconditionally.

    A new monitor which first handles the exception with this, then passes it onto next unconditionally. The new monitor handles the exception if either this or next does.

  5. def apply(f: ⇒ Unit): Unit

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    Run f inside of the monitor context.

    Run f inside of the monitor context. If f throws an exception - directly or not - it is handled by this monitor.

  6. final def asInstanceOf[T0]: T0

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  7. def clone(): AnyRef

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    Attributes
    protected[java.lang]
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    @throws( ... )

  8. final def eq(arg0: AnyRef): Boolean

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  9. def equals(arg0: Any): Boolean

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  10. def finalize(): Unit

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    protected[java.lang]
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    Annotations
    @throws( classOf[java.lang.Throwable] )

  11. final def getClass(): Class[_]

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  12. def hashCode(): Int

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  13. final def isInstanceOf[T0]: Boolean

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  14. final def ne(arg0: AnyRef): Boolean

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  15. final def notify(): Unit

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  16. final def notifyAll(): Unit

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  17. def orElse(next: Monitor): Monitor

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    A new monitor which, if this fails to handle the exception, attempts to let next handle it.

  18. final def synchronized[T0](arg0: ⇒ T0): T0

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  19. def toString(): String

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  20. def tryHandle(exc: Throwable): Try[Unit]

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    An implementation widget: attempts to handle exc returning a com.twitter.util.Try[Unit].

    An implementation widget: attempts to handle exc returning a com.twitter.util.Try[Unit]. If the exception is unhandled, we return Throw(exc), if the handler throws an exception, we wrap it in a MonitorException.

    Attributes
    protected

  21. final def wait(): Unit

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    @throws( ... )

  22. final def wait(arg0: Long, arg1: Int): Unit

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    @throws( ... )

  23. final def wait(arg0: Long): Unit

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    @throws( ... )

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