Class

com.datastax.bdp.graph.spark.sql.vertex

SingleLabelVertexSource

Related Doc: package vertex

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class SingleLabelVertexSource extends RelationProvider with SchemaRelationProvider with CreatableRelationProvider with Logging

Graph vertex data source wrap a Cassandra data source It's used internally by DseGraphFrame to handle vertices stored in C*

Linear Supertypes
Logging, CreatableRelationProvider, SchemaRelationProvider, RelationProvider, AnyRef, Any
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Inherited
  1. SingleLabelVertexSource
  2. Logging
  3. CreatableRelationProvider
  4. SchemaRelationProvider
  5. RelationProvider
  6. AnyRef
  7. Any
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Instance Constructors

  1. new SingleLabelVertexSource()

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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. def TableRefAndOptions(parameters: Map[String, String]): (String, TableRef, CassandraSourceOptions)

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    Parse parameters into CassandraDataSourceOptions and TableRef object

  5. val VertexDataSourceLabelProperty: String

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  6. final def asInstanceOf[T0]: T0

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    Definition Classes
    Any
  7. def clone(): AnyRef

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    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  8. 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
    SingleLabelVertexSource → CreatableRelationProvider
  9. 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
    SingleLabelVertexSource → SchemaRelationProvider
  10. 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

    label -- vertex label name, required keyspace -- graph 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.fetchSizeInRows 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
    SingleLabelVertexSource → RelationProvider
  11. final def eq(arg0: AnyRef): Boolean

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    Definition Classes
    AnyRef
  12. def equals(arg0: Any): Boolean

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    Definition Classes
    AnyRef → Any
  13. def finalize(): Unit

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    Attributes
    protected[java.lang]
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    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )
  14. final def getClass(): Class[_]

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  15. def hashCode(): Int

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  16. final def isInstanceOf[T0]: Boolean

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    Definition Classes
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  17. def isTraceEnabled(): Boolean

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    Attributes
    protected
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    Logging
  18. def log: Logger

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    Attributes
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    Logging
  19. def logDebug(msg: ⇒ String, throwable: Throwable): Unit

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    Attributes
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    Logging
  20. def logDebug(msg: ⇒ String): Unit

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

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    Logging
  22. def logError(msg: ⇒ String): Unit

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

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    Attributes
    protected
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    Logging
  24. def logInfo(msg: ⇒ String): Unit

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    Attributes
    protected
    Definition Classes
    Logging
  25. def logName: String

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

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

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

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

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    Attributes
    protected
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    Logging
  30. final def ne(arg0: AnyRef): Boolean

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    Definition Classes
    AnyRef
  31. final def notify(): Unit

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

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

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    Definition Classes
    AnyRef
  34. def toString(): String

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    Definition Classes
    AnyRef → Any
  35. final def wait(): Unit

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

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    Annotations
    @throws( ... )
  37. final def wait(arg0: Long): Unit

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    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

Inherited from Logging

Inherited from CreatableRelationProvider

Inherited from SchemaRelationProvider

Inherited from RelationProvider

Inherited from AnyRef

Inherited from Any

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