ParquetReadSupport

Parquet read support used by org.apache.parquet.hadoop.ParquetInputFormat to read values from parquet input. User must define record schema and parquet tuple converter that permits to convert parquet tuple to user defined type For case class types, we provide a macro to generate the schema and read support: com.twitter.scalding.parquet.tuple.macros.Macros.caseClassParquetReadSupport

T: user defined value type

Linear Supertypes

Serializable, Serializable, ReadSupport[T], AnyRef, Any

Instance Constructors

new ParquetReadSupport(rootSchema: String)

Abstract Value Members

abstract val tupleConverter: ParquetTupleConverter[T]

Concrete Value Members

final def !=(arg0: Any): Boolean

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

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

Definition Classes
AnyRef → Any
final def asInstanceOf[T0]: T0

Definition Classes
Any
def clone(): AnyRef

Attributes
protected[java.lang]
Definition Classes
AnyRef
Annotations
@throws( ... )
final def eq(arg0: AnyRef): Boolean

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

Definition Classes
AnyRef → Any
def finalize(): Unit

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

Definition Classes
AnyRef → Any
def hashCode(): Int

Definition Classes
AnyRef → Any
def init(configuration: Configuration, map: Map[String, String], messageType: MessageType): ReadContext

Definition Classes
ParquetReadSupport → ReadSupport
def init(arg0: InitContext): ReadContext

Definition Classes
ReadSupport
final def isInstanceOf[T0]: Boolean

Definition Classes
Any
final def ne(arg0: AnyRef): Boolean

Definition Classes
AnyRef
final def notify(): Unit

Definition Classes
AnyRef
final def notifyAll(): Unit

Definition Classes
AnyRef
def prepareForRead(configuration: Configuration, map: Map[String, String], messageType: MessageType, readContext: ReadContext): RecordMaterializer[T]

Definition Classes
ParquetReadSupport → ReadSupport
val rootSchema: String
lazy val rootType: MessageType
final def synchronized[T0](arg0: ⇒ T0): T0

Definition Classes
AnyRef
def toString(): String

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

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

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

Definition Classes
AnyRef
Annotations
@throws( ... )

Related Doc: package scheme

abstract class ParquetReadSupport[T] extends ReadSupport[T] with Serializable

Instance Constructors

new ParquetReadSupport(rootSchema: String)

Abstract Value Members

abstract val tupleConverter: ParquetTupleConverter[T]

Concrete Value Members

final def !=(arg0: Any): Boolean

final def ##(): Int

final def ==(arg0: Any): Boolean

final def asInstanceOf[T0]: T0

def clone(): AnyRef

final def eq(arg0: AnyRef): Boolean

def equals(arg0: Any): Boolean

def finalize(): Unit

final def getClass(): Class[_]

def hashCode(): Int

def init(configuration: Configuration, map: Map[String, String], messageType: MessageType): ReadContext

def init(arg0: InitContext): ReadContext

final def isInstanceOf[T0]: Boolean

final def ne(arg0: AnyRef): Boolean

final def notify(): Unit

final def notifyAll(): Unit

def prepareForRead(configuration: Configuration, map: Map[String, String], messageType: MessageType, readContext: ReadContext): RecordMaterializer[T]

val rootSchema: String

lazy val rootType: MessageType

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

def toString(): String

final def wait(): Unit

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

final def wait(arg0: Long): Unit

Inherited from Serializable

Inherited from Serializable

Inherited from ReadSupport[T]

Inherited from AnyRef

Inherited from Any

Ungrouped