Packages

class CASLong extends AnyRef

Implements atomic distributed Long using optimistic locking mechanism. The principle of changing the persisted counter/long value is to: 1) read the value from Consul including the latest ModificationIndex. 2) store the updated value to Consul using compare-and-set with the read ModificationIndex. Should the write fail due to concurrency issues, we loop back to step 1 and try again. Generally all operations will fail if there is no such key/path or the key doesn't have a numerical value.

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Instance Constructors

  1. new CASLong(consulHost: ConsulHost, counterPath: String)

Value Members

  1. final def !=(arg0: Any): Boolean
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  2. final def ##(): Int
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  3. final def ==(arg0: Any): Boolean
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  4. final def asInstanceOf[T0]: T0
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  5. def clone(): AnyRef
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    protected[lang]
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    @throws( ... ) @native() @HotSpotIntrinsicCandidate()
  6. def currentValue(): Try[Long]

    Attempts to read the current value of the long.

  7. def decrementAndGet(decrement: Long): Try[Long]

    Tries to decrement the value by 'n' and return the new value.

    Tries to decrement the value by 'n' and return the new value.

    decrement

    The value to decrement with.

  8. def decrementAndGet(): Try[Long]

    Tries to decrement the counter by one and return the new value.

  9. final def eq(arg0: AnyRef): Boolean
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  10. def equals(arg0: Any): Boolean
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  11. final def getClass(): Class[_]
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    @native() @HotSpotIntrinsicCandidate()
  12. def hashCode(): Int
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    @native() @HotSpotIntrinsicCandidate()
  13. def incrementAndGet(increment: Long): Try[Long]

    Tries to increment the value by 'n' and return the new value.

    Tries to increment the value by 'n' and return the new value.

    increment

    The value to increment with.

  14. def incrementAndGet(): Try[Long]

    Tries to increment the counter by one and return the new value.

  15. final def isInstanceOf[T0]: Boolean
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  16. final def ne(arg0: AnyRef): Boolean
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  17. final def notify(): Unit
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    @native() @HotSpotIntrinsicCandidate()
  18. final def notifyAll(): Unit
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    @native() @HotSpotIntrinsicCandidate()
  19. final def synchronized[T0](arg0: ⇒ T0): T0
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  20. def toString(): String
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  21. final def wait(arg0: Long, arg1: Int): Unit
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    @throws( ... )
  22. final def wait(arg0: Long): Unit
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    @throws( ... ) @native()
  23. final def wait(): Unit
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    @throws( ... )

Deprecated Value Members

  1. def finalize(): Unit
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    @throws( classOf[java.lang.Throwable] ) @Deprecated
    Deprecated

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