Class

org.apache.spark.sql.execution.streaming

EventTimeWatermarkExec

Related Doc: package streaming

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case class EventTimeWatermarkExec(eventTime: Attribute, delay: CalendarInterval, child: SparkPlan) extends SparkPlan with Product with Serializable

Used to mark a column as the containing the event time for a given record. In addition to adding appropriate metadata to this column, this operator also tracks the maximum observed event time. Based on the maximum observed time and a user specified delay, we can calculate the watermark after which we assume we will no longer see late records for a particular time period. Note that event time is measured in milliseconds.

Linear Supertypes
SparkPlan, Serializable, Serializable, Logging, QueryPlan[SparkPlan], TreeNode[SparkPlan], Product, Equals, AnyRef, Any
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  1. EventTimeWatermarkExec
  2. SparkPlan
  3. Serializable
  4. Serializable
  5. Logging
  6. QueryPlan
  7. TreeNode
  8. Product
  9. Equals
  10. AnyRef
  11. Any
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Visibility
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Instance Constructors

  1. new EventTimeWatermarkExec(eventTime: Attribute, delay: CalendarInterval, child: SparkPlan)

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Value Members

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

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    Definition Classes
    AnyRef → Any
  2. final def ##(): Int

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    Definition Classes
    AnyRef → Any
  3. final def ==(arg0: Any): Boolean

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    Definition Classes
    AnyRef → Any
  4. lazy val allAttributes: AttributeSeq

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    Definition Classes
    QueryPlan
  5. def apply(number: Int): TreeNode[_]

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    Definition Classes
    TreeNode
  6. def argString: String

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    Definition Classes
    TreeNode
  7. def asCode: String

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    Definition Classes
    TreeNode
  8. final def asInstanceOf[T0]: T0

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    Definition Classes
    Any
  9. lazy val canonicalized: SparkPlan

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    Definition Classes
    QueryPlan
  10. val child: SparkPlan

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  11. def children: Seq[SparkPlan]

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    Definition Classes
    EventTimeWatermarkExec → TreeNode
  12. def clone(): AnyRef

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    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  13. def collect[B](pf: PartialFunction[SparkPlan, B]): Seq[B]

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    Definition Classes
    TreeNode
  14. def collectFirst[B](pf: PartialFunction[SparkPlan, B]): Option[B]

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    Definition Classes
    TreeNode
  15. def collectLeaves(): Seq[SparkPlan]

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    Definition Classes
    TreeNode
  16. lazy val constraints: ExpressionSet

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    Definition Classes
    QueryPlan
  17. lazy val containsChild: Set[TreeNode[_]]

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    Definition Classes
    TreeNode
  18. val delay: CalendarInterval

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  19. val delayMs: Long

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  20. def doExecute(): RDD[InternalRow]

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    Overridden by concrete implementations of SparkPlan.

    Overridden by concrete implementations of SparkPlan. Produces the result of the query as an RDD[InternalRow]

    Attributes
    protected
    Definition Classes
    EventTimeWatermarkExecSparkPlan
  21. def doExecuteBroadcast[T](): Broadcast[T]

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    Overridden by concrete implementations of SparkPlan.

    Overridden by concrete implementations of SparkPlan. Produces the result of the query as a broadcast variable.

    Attributes
    protected[org.apache.spark.sql]
    Definition Classes
    SparkPlan
  22. def doPrepare(): Unit

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    Overridden by concrete implementations of SparkPlan.

    Overridden by concrete implementations of SparkPlan. It is guaranteed to run before any execute of SparkPlan. This is helpful if we want to set up some state before executing the query, e.g., BroadcastHashJoin uses it to broadcast asynchronously.

    Note: the prepare method has already walked down the tree, so the implementation doesn't need to call children's prepare methods.

    This will only be called once, protected by this.

    Attributes
    protected
    Definition Classes
    SparkPlan
  23. final def eq(arg0: AnyRef): Boolean

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    Definition Classes
    AnyRef
  24. val eventTime: Attribute

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  25. val eventTimeStats: EventTimeStatsAccum

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  26. final def execute(): RDD[InternalRow]

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    Returns the result of this query as an RDD[InternalRow] by delegating to doExecute after preparations.

    Returns the result of this query as an RDD[InternalRow] by delegating to doExecute after preparations.

    Concrete implementations of SparkPlan should override doExecute.

    Definition Classes
    SparkPlan
  27. final def executeBroadcast[T](): Broadcast[T]

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    Returns the result of this query as a broadcast variable by delegating to doExecuteBroadcast after preparations.

    Returns the result of this query as a broadcast variable by delegating to doExecuteBroadcast after preparations.

    Concrete implementations of SparkPlan should override doExecuteBroadcast.

    Definition Classes
    SparkPlan
  28. def executeCollect(): Array[InternalRow]

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    Runs this query returning the result as an array.

    Runs this query returning the result as an array.

    Definition Classes
    SparkPlan
  29. def executeCollectPublic(): Array[Row]

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    Runs this query returning the result as an array, using external Row format.

    Runs this query returning the result as an array, using external Row format.

    Definition Classes
    SparkPlan
  30. final def executeQuery[T](query: ⇒ T): T

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    Execute a query after preparing the query and adding query plan information to created RDDs for visualization.

    Execute a query after preparing the query and adding query plan information to created RDDs for visualization.

    Attributes
    protected
    Definition Classes
    SparkPlan
  31. def executeTake(n: Int): Array[InternalRow]

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    Runs this query returning the first n rows as an array.

    Runs this query returning the first n rows as an array.

    This is modeled after RDD.take but never runs any job locally on the driver.

    Definition Classes
    SparkPlan
  32. def executeToIterator(): Iterator[InternalRow]

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    Runs this query returning the result as an iterator of InternalRow.

    Runs this query returning the result as an iterator of InternalRow.

    Note: this will trigger multiple jobs (one for each partition).

    Definition Classes
    SparkPlan
  33. final def expressions: Seq[Expression]

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    Definition Classes
    QueryPlan
  34. def fastEquals(other: TreeNode[_]): Boolean

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    Definition Classes
    TreeNode
  35. def finalize(): Unit

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    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )
  36. def find(f: (SparkPlan) ⇒ Boolean): Option[SparkPlan]

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    Definition Classes
    TreeNode
  37. def flatMap[A](f: (SparkPlan) ⇒ TraversableOnce[A]): Seq[A]

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    Definition Classes
    TreeNode
  38. def foreach(f: (SparkPlan) ⇒ Unit): Unit

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    Definition Classes
    TreeNode
  39. def foreachUp(f: (SparkPlan) ⇒ Unit): Unit

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    Definition Classes
    TreeNode
  40. def generateTreeString(depth: Int, lastChildren: Seq[Boolean], builder: StringBuilder, verbose: Boolean, prefix: String, addSuffix: Boolean): StringBuilder

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    Definition Classes
    TreeNode
  41. final def getClass(): Class[_]

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    Definition Classes
    AnyRef → Any
  42. def getRelevantConstraints(constraints: Set[Expression]): Set[Expression]

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    Attributes
    protected
    Definition Classes
    QueryPlan
  43. def hashCode(): Int

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    Definition Classes
    TreeNode → AnyRef → Any
  44. def initializeLogIfNecessary(isInterpreter: Boolean): Unit

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    Attributes
    protected
    Definition Classes
    Logging
  45. def innerChildren: Seq[QueryPlan[_]]

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    Attributes
    protected
    Definition Classes
    QueryPlan → TreeNode
  46. def inputSet: AttributeSet

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    Definition Classes
    QueryPlan
  47. final def isInstanceOf[T0]: Boolean

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    Definition Classes
    Any
  48. def isTraceEnabled(): Boolean

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    Attributes
    protected
    Definition Classes
    Logging
  49. def jsonFields: List[JField]

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    Attributes
    protected
    Definition Classes
    TreeNode
  50. def log: Logger

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    Attributes
    protected
    Definition Classes
    Logging
  51. def logDebug(msg: ⇒ String, throwable: Throwable): Unit

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    Attributes
    protected
    Definition Classes
    Logging
  52. def logDebug(msg: ⇒ String): Unit

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    Attributes
    protected
    Definition Classes
    Logging
  53. def logError(msg: ⇒ String, throwable: Throwable): Unit

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    Attributes
    protected
    Definition Classes
    Logging
  54. def logError(msg: ⇒ String): Unit

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    Attributes
    protected
    Definition Classes
    Logging
  55. def logInfo(msg: ⇒ String, throwable: Throwable): Unit

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    Attributes
    protected
    Definition Classes
    Logging
  56. def logInfo(msg: ⇒ String): Unit

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    Attributes
    protected
    Definition Classes
    Logging
  57. def logName: String

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    Attributes
    protected
    Definition Classes
    Logging
  58. def logTrace(msg: ⇒ String, throwable: Throwable): Unit

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    Attributes
    protected
    Definition Classes
    Logging
  59. def logTrace(msg: ⇒ String): Unit

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    Attributes
    protected
    Definition Classes
    Logging
  60. def logWarning(msg: ⇒ String, throwable: Throwable): Unit

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    Attributes
    protected
    Definition Classes
    Logging
  61. def logWarning(msg: ⇒ String): Unit

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    Attributes
    protected
    Definition Classes
    Logging
  62. def longMetric(name: String): SQLMetric

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    Return a LongSQLMetric according to the name.

    Return a LongSQLMetric according to the name.

    Definition Classes
    SparkPlan
  63. def makeCopy(newArgs: Array[AnyRef]): SparkPlan

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    Overridden make copy also propagates sqlContext to copied plan.

    Overridden make copy also propagates sqlContext to copied plan.

    Definition Classes
    SparkPlan → TreeNode
  64. def map[A](f: (SparkPlan) ⇒ A): Seq[A]

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    Definition Classes
    TreeNode
  65. def mapChildren(f: (SparkPlan) ⇒ SparkPlan): SparkPlan

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    Definition Classes
    TreeNode
  66. def mapExpressions(f: (Expression) ⇒ Expression): EventTimeWatermarkExec.this.type

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    Definition Classes
    QueryPlan
  67. def mapProductIterator[B](f: (Any) ⇒ B)(implicit arg0: ClassTag[B]): Array[B]

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    Attributes
    protected
    Definition Classes
    TreeNode
  68. def metadata: Map[String, String]

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    Return all metadata that describes more details of this SparkPlan.

    Return all metadata that describes more details of this SparkPlan.

    Definition Classes
    SparkPlan
  69. def metrics: Map[String, SQLMetric]

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    Return all metrics containing metrics of this SparkPlan.

    Return all metrics containing metrics of this SparkPlan.

    Definition Classes
    SparkPlan
  70. def missingInput: AttributeSet

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    Definition Classes
    QueryPlan
  71. final def ne(arg0: AnyRef): Boolean

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    Definition Classes
    AnyRef
  72. def newMutableProjection(expressions: Seq[Expression], inputSchema: Seq[Attribute], useSubexprElimination: Boolean = false): MutableProjection

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    Attributes
    protected
    Definition Classes
    SparkPlan
  73. def newNaturalAscendingOrdering(dataTypes: Seq[DataType]): Ordering[InternalRow]

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    Creates a row ordering for the given schema, in natural ascending order.

    Creates a row ordering for the given schema, in natural ascending order.

    Attributes
    protected
    Definition Classes
    SparkPlan
  74. def newOrdering(order: Seq[SortOrder], inputSchema: Seq[Attribute]): Ordering[InternalRow]

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    Attributes
    protected
    Definition Classes
    SparkPlan
  75. def newPredicate(expression: Expression, inputSchema: Seq[Attribute]): Predicate

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    Attributes
    protected
    Definition Classes
    SparkPlan
  76. def nodeName: String

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    Definition Classes
    TreeNode
  77. final def notify(): Unit

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    Definition Classes
    AnyRef
  78. final def notifyAll(): Unit

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    Definition Classes
    AnyRef
  79. def numberedTreeString: String

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    Definition Classes
    TreeNode
  80. val origin: Origin

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    Definition Classes
    TreeNode
  81. def otherCopyArgs: Seq[AnyRef]

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    Attributes
    protected
    Definition Classes
    TreeNode
  82. val output: Seq[Attribute]

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    Definition Classes
    EventTimeWatermarkExec → QueryPlan
  83. def outputOrdering: Seq[SortOrder]

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    Specifies how data is ordered in each partition.

    Specifies how data is ordered in each partition.

    Definition Classes
    SparkPlan
  84. def outputPartitioning: Partitioning

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    Specifies how data is partitioned across different nodes in the cluster.

    Specifies how data is partitioned across different nodes in the cluster.

    Definition Classes
    SparkPlan
  85. def outputSet: AttributeSet

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    Definition Classes
    QueryPlan
  86. def p(number: Int): SparkPlan

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    Definition Classes
    TreeNode
  87. def preCanonicalized: SparkPlan

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    Attributes
    protected
    Definition Classes
    QueryPlan
  88. final def prepare(): Unit

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    Prepare a SparkPlan for execution.

    Prepare a SparkPlan for execution. It's idempotent.

    Definition Classes
    SparkPlan
  89. def prepareSubqueries(): Unit

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    Finds scalar subquery expressions in this plan node and starts evaluating them.

    Finds scalar subquery expressions in this plan node and starts evaluating them.

    Attributes
    protected
    Definition Classes
    SparkPlan
  90. def prettyJson: String

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    Definition Classes
    TreeNode
  91. def printSchema(): Unit

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    Definition Classes
    QueryPlan
  92. def producedAttributes: AttributeSet

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    Definition Classes
    QueryPlan
  93. def references: AttributeSet

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    Definition Classes
    QueryPlan
  94. def requiredChildDistribution: Seq[Distribution]

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    Specifies any partition requirements on the input data for this operator.

    Specifies any partition requirements on the input data for this operator.

    Definition Classes
    SparkPlan
  95. def requiredChildOrdering: Seq[Seq[SortOrder]]

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    Specifies sort order for each partition requirements on the input data for this operator.

    Specifies sort order for each partition requirements on the input data for this operator.

    Definition Classes
    SparkPlan
  96. def resetMetrics(): Unit

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    Reset all the metrics.

    Reset all the metrics.

    Definition Classes
    SparkPlan
  97. final def sameResult(other: SparkPlan): Boolean

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    Definition Classes
    QueryPlan
  98. lazy val schema: StructType

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    Definition Classes
    QueryPlan
  99. def schemaString: String

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    Definition Classes
    QueryPlan
  100. final def semanticHash(): Int

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    Definition Classes
    QueryPlan
  101. def simpleString: String

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    Definition Classes
    QueryPlan → TreeNode
  102. def sparkContext: SparkContext

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    Attributes
    protected
    Definition Classes
    SparkPlan
  103. final val sqlContext: SQLContext

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    A handle to the SQL Context that was used to create this plan.

    A handle to the SQL Context that was used to create this plan. Since many operators need access to the sqlContext for RDD operations or configuration this field is automatically populated by the query planning infrastructure.

    Definition Classes
    SparkPlan
  104. def statePrefix: String

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    Attributes
    protected
    Definition Classes
    QueryPlan
  105. def stringArgs: Iterator[Any]

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    Attributes
    protected
    Definition Classes
    TreeNode
  106. val subexpressionEliminationEnabled: Boolean

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    Definition Classes
    SparkPlan
  107. def subqueries: Seq[SparkPlan]

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    Definition Classes
    QueryPlan
  108. final def synchronized[T0](arg0: ⇒ T0): T0

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    Definition Classes
    AnyRef
  109. def toJSON: String

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    Definition Classes
    TreeNode
  110. def toString(): String

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    Definition Classes
    TreeNode → AnyRef → Any
  111. def transform(rule: PartialFunction[SparkPlan, SparkPlan]): SparkPlan

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    Definition Classes
    TreeNode
  112. def transformAllExpressions(rule: PartialFunction[Expression, Expression]): EventTimeWatermarkExec.this.type

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    Definition Classes
    QueryPlan
  113. def transformDown(rule: PartialFunction[SparkPlan, SparkPlan]): SparkPlan

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    Definition Classes
    TreeNode
  114. def transformExpressions(rule: PartialFunction[Expression, Expression]): EventTimeWatermarkExec.this.type

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    Definition Classes
    QueryPlan
  115. def transformExpressionsDown(rule: PartialFunction[Expression, Expression]): EventTimeWatermarkExec.this.type

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    Definition Classes
    QueryPlan
  116. def transformExpressionsUp(rule: PartialFunction[Expression, Expression]): EventTimeWatermarkExec.this.type

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    Definition Classes
    QueryPlan
  117. def transformUp(rule: PartialFunction[SparkPlan, SparkPlan]): SparkPlan

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    Definition Classes
    TreeNode
  118. def treeString(verbose: Boolean, addSuffix: Boolean): String

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    Definition Classes
    TreeNode
  119. def treeString: String

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    Definition Classes
    TreeNode
  120. def validConstraints: Set[Expression]

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    Attributes
    protected
    Definition Classes
    QueryPlan
  121. def verboseString: String

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    Definition Classes
    QueryPlan → TreeNode
  122. def verboseStringWithSuffix: String

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    Definition Classes
    TreeNode
  123. final def wait(): Unit

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    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  124. final def wait(arg0: Long, arg1: Int): Unit

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    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  125. final def wait(arg0: Long): Unit

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    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  126. def waitForSubqueries(): Unit

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    Blocks the thread until all subqueries finish evaluation and update the results.

    Blocks the thread until all subqueries finish evaluation and update the results.

    Attributes
    protected
    Definition Classes
    SparkPlan
  127. def withNewChildren(newChildren: Seq[SparkPlan]): SparkPlan

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    Definition Classes
    TreeNode

Inherited from SparkPlan

Inherited from Serializable

Inherited from Serializable

Inherited from Logging

Inherited from QueryPlan[SparkPlan]

Inherited from TreeNode[SparkPlan]

Inherited from Product

Inherited from Equals

Inherited from AnyRef

Inherited from Any

Ungrouped