Packages

abstract class SPARQLQuery extends Transformer

A SPARQL query transformer instance takes a SPARQL query string as constructor argument and can than be invoked (via the transform method) on a Dataset[Triple] object returning a DataFrame which contains one column for each SPARQL projection variable.

The SPARQL query transformer only works with SELECT queries.

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Transformer, PipelineStage, Logging, Params, Serializable, Serializable, Identifiable, AnyRef, Any
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Inherited
  1. SPARQLQuery
  2. Transformer
  3. PipelineStage
  4. Logging
  5. Params
  6. Serializable
  7. Serializable
  8. Identifiable
  9. AnyRef
  10. Any
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Visibility
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Instance Constructors

  1. new SPARQLQuery(queryString: String)

    queryString

    String containing the SPARQL select query to run on a Dataset[Triple] object

Abstract Value Members

  1. abstract def transform(dataset: Dataset[_]): DataFrame
    Definition Classes
    Transformer
    Annotations
    @Since( "2.0.0" )

Concrete Value Members

  1. final def !=(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  2. final def ##(): Int
    Definition Classes
    AnyRef → Any
  3. final def $[T](param: Param[T]): T
    Attributes
    protected
    Definition Classes
    Params
  4. final def ==(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  5. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  6. final def clear(param: Param[_]): SPARQLQuery.this.type
    Definition Classes
    Params
  7. def clone(): AnyRef
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... ) @native() @HotSpotIntrinsicCandidate()
  8. def copy(extra: ParamMap): Transformer
    Definition Classes
    SPARQLQuery → Transformer → PipelineStage → Params
  9. def copyValues[T <: Params](to: T, extra: ParamMap): T
    Attributes
    protected
    Definition Classes
    Params
  10. final def defaultCopy[T <: Params](extra: ParamMap): T
    Attributes
    protected
    Definition Classes
    Params
  11. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  12. def equals(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  13. def explainParam(param: Param[_]): String
    Definition Classes
    Params
  14. def explainParams(): String
    Definition Classes
    Params
  15. final def extractParamMap(): ParamMap
    Definition Classes
    Params
  16. final def extractParamMap(extra: ParamMap): ParamMap
    Definition Classes
    Params
  17. final def get[T](param: Param[T]): Option[T]
    Definition Classes
    Params
  18. final def getClass(): Class[_]
    Definition Classes
    AnyRef → Any
    Annotations
    @native() @HotSpotIntrinsicCandidate()
  19. final def getDefault[T](param: Param[T]): Option[T]
    Definition Classes
    Params
  20. final def getOrDefault[T](param: Param[T]): T
    Definition Classes
    Params
  21. def getParam(paramName: String): Param[Any]
    Definition Classes
    Params
  22. def getResultBindings(dataset: Dataset[_]): RDD[Binding]
    Attributes
    protected
  23. final def hasDefault[T](param: Param[T]): Boolean
    Definition Classes
    Params
  24. def hasParam(paramName: String): Boolean
    Definition Classes
    Params
  25. def hashCode(): Int
    Definition Classes
    AnyRef → Any
    Annotations
    @native() @HotSpotIntrinsicCandidate()
  26. def initializeLogIfNecessary(isInterpreter: Boolean, silent: Boolean): Boolean
    Attributes
    protected
    Definition Classes
    Logging
  27. def initializeLogIfNecessary(isInterpreter: Boolean): Unit
    Attributes
    protected
    Definition Classes
    Logging
  28. final def isDefined(param: Param[_]): Boolean
    Definition Classes
    Params
  29. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  30. final def isSet(param: Param[_]): Boolean
    Definition Classes
    Params
  31. def isTraceEnabled(): Boolean
    Attributes
    protected
    Definition Classes
    Logging
  32. def log: Logger
    Attributes
    protected
    Definition Classes
    Logging
  33. def logDebug(msg: ⇒ String, throwable: Throwable): Unit
    Attributes
    protected
    Definition Classes
    Logging
  34. def logDebug(msg: ⇒ String): Unit
    Attributes
    protected
    Definition Classes
    Logging
  35. def logError(msg: ⇒ String, throwable: Throwable): Unit
    Attributes
    protected
    Definition Classes
    Logging
  36. def logError(msg: ⇒ String): Unit
    Attributes
    protected
    Definition Classes
    Logging
  37. def logInfo(msg: ⇒ String, throwable: Throwable): Unit
    Attributes
    protected
    Definition Classes
    Logging
  38. def logInfo(msg: ⇒ String): Unit
    Attributes
    protected
    Definition Classes
    Logging
  39. def logName: String
    Attributes
    protected
    Definition Classes
    Logging
  40. def logTrace(msg: ⇒ String, throwable: Throwable): Unit
    Attributes
    protected
    Definition Classes
    Logging
  41. def logTrace(msg: ⇒ String): Unit
    Attributes
    protected
    Definition Classes
    Logging
  42. def logWarning(msg: ⇒ String, throwable: Throwable): Unit
    Attributes
    protected
    Definition Classes
    Logging
  43. def logWarning(msg: ⇒ String): Unit
    Attributes
    protected
    Definition Classes
    Logging
  44. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  45. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native() @HotSpotIntrinsicCandidate()
  46. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native() @HotSpotIntrinsicCandidate()
  47. lazy val params: Array[Param[_]]
    Definition Classes
    Params
  48. final def set(paramPair: ParamPair[_]): SPARQLQuery.this.type
    Attributes
    protected
    Definition Classes
    Params
  49. final def set(param: String, value: Any): SPARQLQuery.this.type
    Attributes
    protected
    Definition Classes
    Params
  50. final def set[T](param: Param[T], value: T): SPARQLQuery.this.type
    Definition Classes
    Params
  51. final def setDefault(paramPairs: ParamPair[_]*): SPARQLQuery.this.type
    Attributes
    protected
    Definition Classes
    Params
  52. final def setDefault[T](param: Param[T], value: T): SPARQLQuery.this.type
    Attributes
    protected
    Definition Classes
    Params
  53. val spark: SparkSession
    Attributes
    protected
  54. final def synchronized[T0](arg0: ⇒ T0): T0
    Definition Classes
    AnyRef
  55. def toString(): String
    Definition Classes
    Identifiable → AnyRef → Any
  56. def transform(dataset: Dataset[_], paramMap: ParamMap): DataFrame
    Definition Classes
    Transformer
    Annotations
    @Since( "2.0.0" )
  57. def transform(dataset: Dataset[_], firstParamPair: ParamPair[_], otherParamPairs: ParamPair[_]*): DataFrame
    Definition Classes
    Transformer
    Annotations
    @Since( "2.0.0" ) @varargs()
  58. def transformSchema(schema: StructType): StructType
    Definition Classes
    SPARQLQuery → PipelineStage
  59. def transformSchema(schema: StructType, logging: Boolean): StructType
    Attributes
    protected
    Definition Classes
    PipelineStage
    Annotations
    @DeveloperApi()
  60. val uid: String
    Definition Classes
    SPARQLQuery → Identifiable
  61. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  62. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... ) @native()
  63. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

Deprecated Value Members

  1. def finalize(): Unit
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] ) @Deprecated @deprecated
    Deprecated

    (Since version ) see corresponding Javadoc for more information.

Inherited from Transformer

Inherited from PipelineStage

Inherited from Logging

Inherited from Params

Inherited from Serializable

Inherited from Serializable

Inherited from Identifiable

Inherited from AnyRef

Inherited from Any

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