c

org.graphframes.lib

ShortestPaths

class ShortestPaths extends Arguments with WithAlgorithmChoice with WithCheckpointInterval

Computes shortest paths from every vertex to the given set of landmark vertices. Note that this takes edge direction into account.

The returned DataFrame contains all the original vertex information as well as one additional column:

  • distances (MapType[vertex ID type, IntegerType]): For each vertex v, a map containing the shortest-path distance to each reachable landmark vertex.
Linear Supertypes
WithCheckpointInterval, Logging, WithAlgorithmChoice, Arguments, AnyRef, Any
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Inherited
  1. ShortestPaths
  2. WithCheckpointInterval
  3. Logging
  4. WithAlgorithmChoice
  5. Arguments
  6. AnyRef
  7. Any
Implicitly
  1. by any2stringadd
  2. by StringFormat
  3. by Ensuring
  4. by ArrowAssoc
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Value Members

  1. final def !=(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  2. final def ##(): Int
    Definition Classes
    AnyRef → Any
  3. def +(other: String): String
    Implicit
    This member is added by an implicit conversion from ShortestPaths to any2stringadd[ShortestPaths] performed by method any2stringadd in scala.Predef.
    Definition Classes
    any2stringadd
  4. def ->[B](y: B): (ShortestPaths, B)
    Implicit
    This member is added by an implicit conversion from ShortestPaths to ArrowAssoc[ShortestPaths] performed by method ArrowAssoc in scala.Predef.
    Definition Classes
    ArrowAssoc
    Annotations
    @inline()
  5. final def ==(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  6. val ALGO_GRAPHFRAMES: String
    Attributes
    protected
    Definition Classes
    WithAlgorithmChoice
  7. val ALGO_GRAPHX: String
    Attributes
    protected
    Definition Classes
    WithAlgorithmChoice
  8. val algorithm: String
    Attributes
    protected
    Definition Classes
    WithAlgorithmChoice
  9. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  10. val checkpointInterval: Int
    Attributes
    protected
    Definition Classes
    WithCheckpointInterval
  11. def clone(): AnyRef
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... ) @native() @HotSpotIntrinsicCandidate()
  12. def ensuring(cond: (ShortestPaths) ⇒ Boolean, msg: ⇒ Any): ShortestPaths
    Implicit
    This member is added by an implicit conversion from ShortestPaths to Ensuring[ShortestPaths] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  13. def ensuring(cond: (ShortestPaths) ⇒ Boolean): ShortestPaths
    Implicit
    This member is added by an implicit conversion from ShortestPaths to Ensuring[ShortestPaths] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  14. def ensuring(cond: Boolean, msg: ⇒ Any): ShortestPaths
    Implicit
    This member is added by an implicit conversion from ShortestPaths to Ensuring[ShortestPaths] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  15. def ensuring(cond: Boolean): ShortestPaths
    Implicit
    This member is added by an implicit conversion from ShortestPaths to Ensuring[ShortestPaths] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  16. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  17. def equals(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  18. def getAlgorithm: String
    Definition Classes
    WithAlgorithmChoice
  19. def getCheckpointInterval: Int

    Gets checkpoint interval.

    Gets checkpoint interval.

    Definition Classes
    WithCheckpointInterval
  20. final def getClass(): Class[_]
    Definition Classes
    AnyRef → Any
    Annotations
    @native() @HotSpotIntrinsicCandidate()
  21. def hashCode(): Int
    Definition Classes
    AnyRef → Any
    Annotations
    @native() @HotSpotIntrinsicCandidate()
  22. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  23. def landmarks(value: ArrayList[Any]): ShortestPaths.this.type

    The list of landmark vertex ids.

    The list of landmark vertex ids. Shortest paths will be computed to each landmark.

  24. def landmarks(value: Seq[Any]): ShortestPaths.this.type

    The list of landmark vertex ids.

    The list of landmark vertex ids. Shortest paths will be computed to each landmark.

  25. def logDebug(s: ⇒ String): Unit
    Attributes
    protected
    Definition Classes
    Logging
  26. def logInfo(s: ⇒ String): Unit
    Attributes
    protected
    Definition Classes
    Logging
  27. def logTrace(s: ⇒ String): Unit
    Attributes
    protected
    Definition Classes
    Logging
  28. def logWarn(s: ⇒ String): Unit
    Attributes
    protected
    Definition Classes
    Logging
  29. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  30. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native() @HotSpotIntrinsicCandidate()
  31. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native() @HotSpotIntrinsicCandidate()
  32. def run(): DataFrame
  33. def setAlgorithm(value: String): ShortestPaths.this.type

    Set an algorithm to use.

    Set an algorithm to use. Supported algorithms are "graphx" and "graphframes".

    Definition Classes
    WithAlgorithmChoice
  34. def setCheckpointInterval(value: Int): ShortestPaths.this.type

    Sets checkpoint interval in terms of number of iterations (default: 2).

    Sets checkpoint interval in terms of number of iterations (default: 2). Checkpointing regularly helps recover from failures, clean shuffle files, shorten the lineage of the computation graph, and reduce the complexity of plan optimization. As of Spark 2.0, the complexity of plan optimization would grow exponentially without checkpointing. Hence, disabling or setting longer-than-default checkpoint intervals are not recommended. Checkpoint data is saved under org.apache.spark.SparkContext.getCheckpointDir with prefix of the algorithm name. If the checkpoint directory is not set, this throws a java.io.IOException. Set a nonpositive value to disable checkpointing. This parameter is only used when the algorithm is set to "graphframes". Its default value might change in the future.

    Definition Classes
    WithCheckpointInterval
    See also

    org.apache.spark.SparkContext.setCheckpointDir in Spark API doc

  35. val supportedAlgorithms: Array[String]
    Definition Classes
    WithAlgorithmChoice
  36. final def synchronized[T0](arg0: ⇒ T0): T0
    Definition Classes
    AnyRef
  37. def toString(): String
    Definition Classes
    AnyRef → Any
  38. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  39. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... ) @native()
  40. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  41. def →[B](y: B): (ShortestPaths, B)
    Implicit
    This member is added by an implicit conversion from ShortestPaths to ArrowAssoc[ShortestPaths] performed by method ArrowAssoc in scala.Predef.
    Definition Classes
    ArrowAssoc

Deprecated Value Members

  1. def finalize(): Unit
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] ) @Deprecated
    Deprecated
  2. def formatted(fmtstr: String): String
    Implicit
    This member is added by an implicit conversion from ShortestPaths to StringFormat[ShortestPaths] performed by method StringFormat in scala.Predef.
    Definition Classes
    StringFormat
    Annotations
    @deprecated @inline()
    Deprecated

    (Since version 2.12.16) Use formatString.format(value) instead of value.formatted(formatString), or use the f"" string interpolator. In Java 15 and later, formatted resolves to the new method in String which has reversed parameters.

Inherited from WithCheckpointInterval

Inherited from Logging

Inherited from WithAlgorithmChoice

Inherited from Arguments

Inherited from AnyRef

Inherited from Any

Inherited by implicit conversion any2stringadd from ShortestPaths to any2stringadd[ShortestPaths]

Inherited by implicit conversion StringFormat from ShortestPaths to StringFormat[ShortestPaths]

Inherited by implicit conversion Ensuring from ShortestPaths to Ensuring[ShortestPaths]

Inherited by implicit conversion ArrowAssoc from ShortestPaths to ArrowAssoc[ShortestPaths]

Ungrouped