DSEDirectJoinStrategy

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. def aliasMap(aliases: Seq[NamedExpression]): Map[String, Attribute]

   

   Map Source Names to Attributes

5. def allPartitionKeysAreJoined(plan: LogicalPlan, joinKeys: Seq[Expression]): Boolean

   

   Every partition key column must be a join key

6. final def asInstanceOf[T0]: T0

   

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7. def clone(): AnyRef

   

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8. def containsSafePlans(plan: LogicalPlan): Boolean

   

   Checks whether a logical plan contains only Filters, Aliases and CassandraSource Relations

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

   

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10. def equals(arg0: Any): Boolean

    

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11. def finalize(): Unit

    

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12. def getCassandraSource(plan: LogicalPlan): Option[CassandraSourceRelation]

    

    Checks whether there is only a single leaf to this plan and that the leaf is a CassandraSourceRelation.

    Checks whether there is only a single leaf to this plan and that the leaf is a CassandraSourceRelation. If it is returns that relation.

13. def getCassandraTableScanRDD(rdd: RDD[_]): Option[CassandraTableScanRDD[_]]

    

    Recursively search the dependencies of an RDD for a CassandraTableScanRDD Only searches single dependency chains, on branches chooses left

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

    

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15. def getLogicalRelation(plan: LogicalPlan): Option[LogicalRelation]

    

    Returns a single logical source for the branch if there is one

16. def getScanExec(plan: SparkPlan): Option[DataSourceScanExec]

    

    Returns the single DataSourceScanExec for the branch if there is one

17. def hasCassandraChild[T <: QueryPlan[T]](plan: T): Boolean

    

    Checks whether a query plan has either a logical or physical node pulling data from cassandra

18. def hashCode(): Int

    

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19. final def isInstanceOf[T0]: Boolean

    

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20. def isTraceEnabled(): Boolean

    

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21. def log: Logger

    

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22. def logDebug(msg: ⇒ String, throwable: Throwable): Unit

    

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23. def logDebug(msg: ⇒ String): Unit

    

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24. def logError(msg: ⇒ String, throwable: Throwable): Unit

    

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25. def logError(msg: ⇒ String): Unit

    

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26. def logInfo(msg: ⇒ String, throwable: Throwable): Unit

    

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27. def logInfo(msg: ⇒ String): Unit

    

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28. def logName: String

    

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29. def logTrace(msg: ⇒ String, throwable: Throwable): Unit

    

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30. def logTrace(msg: ⇒ String): Unit

    

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31. def logWarning(msg: ⇒ String, throwable: Throwable): Unit

    

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32. def logWarning(msg: ⇒ String): Unit

    

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

    

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34. final def notify(): Unit

    

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35. final def notifyAll(): Unit

    

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36. def reorderPlan(plan: SparkPlan, directJoin: DSEDirectJoinExec): SparkPlan

    

    Given our target Cassandra based branch, we remove the node which draws data from cassandra (DataSourceScanExec) and replace it with the passed directJoin plan instead.

    Given our target Cassandra based branch, we remove the node which draws data from cassandra (DataSourceScanExec) and replace it with the passed directJoin plan instead.

    INPUT :

    //directJoin: DirectJoinPlan// DirectJoin <-- GetKeyOperations

    //plan: Optimized CassandraScanBranch/ OtherOperations <-- CassandraScan

    OUTPUT:

    OtherOperations <-- DirectJoin <-- GetKeyOperations

    The output of (plan) is not changed, but its children should be changed.

    This should only be called on optimized Physical Plans

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

    

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38. def toString(): String

    

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39. def validJoinBranch(plan: LogicalPlan, keys: Seq[Expression]): Boolean

    

    Checks whether the Plan contains only acceptable logical nodes and all partition keys are joined

40. def validJoinType(cassandraSide: BuildSide, joinType: JoinType): Boolean

    

41. val validJoins: Map[BuildSide, Seq[JoinType]]

    

    Currently we will only support Inner, LeftOuter and RightOuter joins Depending on the side of the CassandraTarget different joins are allowed.

42. final def wait(): Unit

    

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

    

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

    

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