akka.cluster

VectorClock

case class VectorClock(versions: TreeMap[Node, Timestamp] = ...) extends Product with Serializable

Representation of a Vector-based clock (counting clock), inspired by Lamport logical clocks.

Reference:
1) Leslie Lamport (1978). "Time, clocks, and the ordering of events in a distributed system". Communications of the ACM 21 (7): 558-565.
2) Friedemann Mattern (1988). "Virtual Time and Global States of Distributed Systems". Workshop on Parallel and Distributed Algorithms: pp. 215-226

Based on code from the 'vlock' VectorClock library by Coda Hale.

Annotations
@SerialVersionUID( 1L )
Linear Supertypes
Serializable, Serializable, Product, Equals, AnyRef, Any
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Inherited
  1. VectorClock
  2. Serializable
  3. Serializable
  4. Product
  5. Equals
  6. AnyRef
  7. Any
Implicitly
  1. by any2stringadd
  2. by any2stringfmt
  3. by any2ArrowAssoc
  4. by any2Ensuring
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  1. Public
  2. All

Instance Constructors

  1. new VectorClock(versions: TreeMap[Node, Timestamp] = ...)

Value Members

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

    Definition Classes
    AnyRef

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

    Definition Classes
    Any

  3. final def ##(): Int

    Definition Classes
    AnyRef → Any

  4. def +(other: String): String

    Implicit information
    This member is added by an implicit conversion from VectorClock to StringAdd performed by method any2stringadd in scala.Predef.
    Definition Classes
    StringAdd

  5. def ->[B](y: B): (VectorClock, B)

    Implicit information
    This member is added by an implicit conversion from VectorClock to ArrowAssoc[VectorClock] performed by method any2ArrowAssoc in scala.Predef.
    Definition Classes
    ArrowAssoc
    Annotations
    @inline()

  6. def :+(node: Node): VectorClock

    Increment the version for the node passed as argument.

    Increment the version for the node passed as argument. Returns a new VectorClock.

  7. def <(that: VectorClock): Boolean

    Returns true if this is before that else false.

    Returns true if this is before that else false.

  8. def <>(that: VectorClock): Boolean

    Returns true if this and that are concurrent else false.

    Returns true if this and that are concurrent else false.

  9. def ==(that: VectorClock): Boolean

    Returns true if this VectorClock has the same history as the 'that' VectorClock else false.

  10. final def ==(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef

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

    Definition Classes
    Any

  12. def >(that: VectorClock): Boolean

    Returns true if this is after that else false.

    Returns true if this is after that else false.

  13. final def asInstanceOf[T0]: T0

    Definition Classes
    Any

  14. def clone(): AnyRef

    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

  15. def compareTo(that: VectorClock): Ordering

    Compare two vector clocks.

    Compare two vector clocks. The outcome will be one of the following:

    1. Clock 1 is SAME (==)       as Clock 2 iff for all i c1(i) == c2(i)
2. Clock 1 is BEFORE (<)      Clock 2 iff for all i c1(i) <= c2(i) and there exist a j such that c1(j) < c2(j)
3. Clock 1 is AFTER (>)       Clock 2 iff for all i c1(i) >= c2(i) and there exist a j such that c1(j) > c2(j).
4. Clock 1 is CONCURRENT (<>) to Clock 2 otherwise.

  16. def ensuring(cond: (VectorClock) ⇒ Boolean, msg: ⇒ Any): VectorClock

    Implicit information
    This member is added by an implicit conversion from VectorClock to Ensuring[VectorClock] performed by method any2Ensuring in scala.Predef.
    Definition Classes
    Ensuring

  17. def ensuring(cond: (VectorClock) ⇒ Boolean): VectorClock

    Implicit information
    This member is added by an implicit conversion from VectorClock to Ensuring[VectorClock] performed by method any2Ensuring in scala.Predef.
    Definition Classes
    Ensuring

  18. def ensuring(cond: Boolean, msg: ⇒ Any): VectorClock

    Implicit information
    This member is added by an implicit conversion from VectorClock to Ensuring[VectorClock] performed by method any2Ensuring in scala.Predef.
    Definition Classes
    Ensuring

  19. def ensuring(cond: Boolean): VectorClock

    Implicit information
    This member is added by an implicit conversion from VectorClock to Ensuring[VectorClock] performed by method any2Ensuring in scala.Predef.
    Definition Classes
    Ensuring

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

    Definition Classes
    AnyRef

  21. def finalize(): Unit

    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )

  22. def formatted(fmtstr: String): String

    Implicit information
    This member is added by an implicit conversion from VectorClock to StringFormat performed by method any2stringfmt in scala.Predef.
    Definition Classes
    StringFormat
    Annotations
    @inline()

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

    Definition Classes
    AnyRef → Any

  24. final def isInstanceOf[T0]: Boolean

    Definition Classes
    Any

  25. def merge(that: VectorClock): VectorClock

    Merges this VectorClock with another VectorClock.

    Merges this VectorClock with another VectorClock. E.g. merges its versioned history.

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

    Definition Classes
    AnyRef

  27. final def notify(): Unit

    Definition Classes
    AnyRef

  28. final def notifyAll(): Unit

    Definition Classes
    AnyRef

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

    Definition Classes
    AnyRef

  30. def toString(): String

    Definition Classes
    VectorClock → AnyRef → Any

  31. val versions: TreeMap[Node, Timestamp]

  32. final def wait(): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

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

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

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

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

  35. def →[B](y: B): (VectorClock, B)

    Implicit information
    This member is added by an implicit conversion from VectorClock to ArrowAssoc[VectorClock] performed by method any2ArrowAssoc in scala.Predef.
    Definition Classes
    ArrowAssoc

Shadowed Implicit Value Members

  1. val self: Any

    Implicit information
    This member is added by an implicit conversion from VectorClock to StringAdd performed by method any2stringadd in scala.Predef.
    Shadowing
    This implicitly inherited member is ambiguous. One or more implicitly inherited members have similar signatures, so calling this member may produce an ambiguous implicit conversion compiler error.
    To access this member you can use a type ascription:
    (vectorClock: StringAdd).self
    Definition Classes
    StringAdd

  2. val self: Any

    Implicit information
    This member is added by an implicit conversion from VectorClock to StringFormat performed by method any2stringfmt in scala.Predef.
    Shadowing
    This implicitly inherited member is ambiguous. One or more implicitly inherited members have similar signatures, so calling this member may produce an ambiguous implicit conversion compiler error.
    To access this member you can use a type ascription:
    (vectorClock: StringFormat).self
    Definition Classes
    StringFormat

Deprecated Value Members

  1. def x: VectorClock

    Implicit information
    This member is added by an implicit conversion from VectorClock to ArrowAssoc[VectorClock] performed by method any2ArrowAssoc in scala.Predef.
    Shadowing
    This implicitly inherited member is ambiguous. One or more implicitly inherited members have similar signatures, so calling this member may produce an ambiguous implicit conversion compiler error.
    To access this member you can use a type ascription:
    (vectorClock: ArrowAssoc[VectorClock]).x
    Definition Classes
    ArrowAssoc
    Annotations
    @deprecated
    Deprecated

    (Since version 2.10.0) Use leftOfArrow instead

  2. def x: VectorClock

    Implicit information
    This member is added by an implicit conversion from VectorClock to Ensuring[VectorClock] performed by method any2Ensuring in scala.Predef.
    Shadowing
    This implicitly inherited member is ambiguous. One or more implicitly inherited members have similar signatures, so calling this member may produce an ambiguous implicit conversion compiler error.
    To access this member you can use a type ascription:
    (vectorClock: Ensuring[VectorClock]).x
    Definition Classes
    Ensuring
    Annotations
    @deprecated
    Deprecated

    (Since version 2.10.0) Use resultOfEnsuring instead

Inherited from Serializable

Inherited from Serializable

Inherited from Product

Inherited from Equals

Inherited from AnyRef

Inherited from Any

Inherited by implicit conversion any2stringadd from VectorClock to StringAdd

Inherited by implicit conversion any2stringfmt from VectorClock to StringFormat

Inherited by implicit conversion any2ArrowAssoc from VectorClock to ArrowAssoc[VectorClock]

Inherited by implicit conversion any2Ensuring from VectorClock to Ensuring[VectorClock]

Ungrouped