Class/Object

org.apache.spark.sql.cassandra

DefaultSource

Related Docs: object DefaultSource | package cassandra

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class DefaultSource extends RelationProvider with SchemaRelationProvider with CreatableRelationProvider with StreamSinkProvider with Logging

Cassandra data source extends RelationProvider, SchemaRelationProvider and CreatableRelationProvider. It's used internally by Spark SQL to create Relation for a table which specifies the Cassandra data source e.g.

CREATE TEMPORARY TABLE tmpTable USING org.apache.spark.sql.cassandra OPTIONS ( table "table", keyspace "keyspace", cluster "test_cluster", pushdown "true", spark.cassandra.input.fetch.sizeInRows "10", spark.cassandra.output.consistency.level "ONE", spark.cassandra.connection.timeoutMS "1000" )

Linear Supertypes
Logging, StreamSinkProvider, CreatableRelationProvider, SchemaRelationProvider, RelationProvider, AnyRef, Any
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Inherited
  1. DefaultSource
  2. Logging
  3. StreamSinkProvider
  4. CreatableRelationProvider
  5. SchemaRelationProvider
  6. RelationProvider
  7. AnyRef
  8. Any
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Visibility
  1. Public
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Instance Constructors

  1. new DefaultSource()

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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. final def asInstanceOf[T0]: T0

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    Definition Classes
    Any

  5. def clone(): AnyRef

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

  6. def createRelation(sqlContext: SQLContext, mode: SaveMode, parameters: Map[String, String], data: DataFrame): BaseRelation

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    Creates a new relation for a cassandra table given table, keyspace, cluster, push_down and schema as parameters.

    Creates a new relation for a cassandra table given table, keyspace, cluster, push_down and schema as parameters. It saves the data to the Cassandra table depends on SaveMode

    Definition Classes
    DefaultSource → CreatableRelationProvider

  7. def createRelation(sqlContext: SQLContext, parameters: Map[String, String], schema: StructType): BaseRelation

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    Creates a new relation for a cassandra table given table, keyspace, cluster and push_down as parameters and explicitly pass schema StructType as a parameter

    Creates a new relation for a cassandra table given table, keyspace, cluster and push_down as parameters and explicitly pass schema StructType as a parameter

    Definition Classes
    DefaultSource → SchemaRelationProvider

  8. def createRelation(sqlContext: SQLContext, parameters: Map[String, String]): BaseRelation

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    Creates a new relation for a cassandra table.

    Creates a new relation for a cassandra table. The parameters map stores table level data. User can specify vale for following keys

    table -- table name, required keyspace -- keyspace name, required cluster -- cluster name, optional, default name is "default" pushdown -- true/false, optional, default is true Cassandra connection settings -- optional, e.g. spark.cassandra.connection.timeoutMS Cassandra Read Settings -- optional, e.g. spark.cassandra.input.fetch.sizeInRows Cassandra Write settings -- optional, e.g. spark.cassandra.output.consistency.level

    When push_down is true, some filters are pushed down to CQL.

    Definition Classes
    DefaultSource → RelationProvider

  9. def createSink(sqlContext: SQLContext, parameters: Map[String, String], partitionColumns: Seq[String], outputMode: OutputMode): Sink

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    Definition Classes
    DefaultSource → StreamSinkProvider

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

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    Definition Classes
    AnyRef

  11. def equals(arg0: Any): Boolean

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    Definition Classes
    AnyRef → Any

  12. def finalize(): Unit

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

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

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    AnyRef → Any

  14. def hashCode(): Int

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  15. final def isInstanceOf[T0]: Boolean

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    Definition Classes
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  16. def isTraceEnabled(): Boolean

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    Attributes
    protected
    Definition Classes
    Logging

  17. def log: Logger

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    Attributes
    protected
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    Logging

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

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    Attributes
    protected
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    Logging

  19. def logDebug(msg: ⇒ String): Unit

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    Attributes
    protected
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    Logging

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

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    Attributes
    protected
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    Logging

  21. def logError(msg: ⇒ String): Unit

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    Attributes
    protected
    Definition Classes
    Logging

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

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    Attributes
    protected
    Definition Classes
    Logging

  23. def logInfo(msg: ⇒ String): Unit

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    Attributes
    protected
    Definition Classes
    Logging

  24. def logName: String

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    Attributes
    protected
    Definition Classes
    Logging

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

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    Attributes
    protected
    Definition Classes
    Logging

  26. def logTrace(msg: ⇒ String): Unit

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    Attributes
    protected
    Definition Classes
    Logging

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

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    Attributes
    protected
    Definition Classes
    Logging

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

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    Attributes
    protected
    Definition Classes
    Logging

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

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    Definition Classes
    AnyRef

  30. final def notify(): Unit

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    Definition Classes
    AnyRef

  31. final def notifyAll(): Unit

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    Definition Classes
    AnyRef

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

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    Definition Classes
    AnyRef

  33. def toString(): String

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    Definition Classes
    AnyRef → Any

  34. final def wait(): Unit

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    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

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

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    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

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

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    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

Inherited from Logging

Inherited from StreamSinkProvider

Inherited from CreatableRelationProvider

Inherited from SchemaRelationProvider

Inherited from RelationProvider

Inherited from AnyRef

Inherited from Any

Ungrouped