Lens

Abstract Value Members

abstract def column: Vector[String]

Focused column vector
Focused column vector
returns
the vector
abstract def focusDataType: DataType

The spark sql type of the focused element
The spark sql type of the focused element
returns
a spark DataType value

See also
org.apache.spark.sql.types.DataType
abstract def innerSchema: StructType

Schema of the structure that holds the focused element.
Schema of the structure that holds the focused element.
returns
a spark StructType

See also
org.apache.spark.sql.types.StructType
abstract def prune(prev: Vector[String] = Vector.empty): Array[Column]

Removes the focused column
Removes the focused column
prev
the vector with the strings of the columns that prefix this lens.
returns
an array of columns with the modifications.
abstract def renameWithPrefix(newName: String, prev: Vector[String]): Array[Column]

Renames the column of focused element.
Renames the column of focused element.
newName
the new name of the column.
prev
the vector with the strings of the columns that prefix this lens.
returns
an array of columns with the modifications.
abstract def schema: StructType

Schema of the context element.
Schema of the context element.
returns
a spark StructType

See also
org.apache.spark.sql.types.StructType
abstract def setAux(newValue: Column, prev: Vector[String]): Array[Column]

Sets a new value in the focused lens, with previous columns.
Sets a new value in the focused lens, with previous columns.
newValue
the new value to set.
prev
the vector with the strings of the columns that prefix this lens.
returns
the array of columns with the modifications.

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( ... )
def composeLens(nextLens: Lens): Lens
def composeProtoLens(nextProto: ProtoLens): Lens

Compose a lens with a protoLens.
Compose a lens with a protoLens.
nextProto
protolens with columns inside the structure already focused.
returns
a lens focusing into the protoLens reference.
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] )
def get: Column

The column reference that is in focus.
The column reference that is in focus.
returns
a spark Column

See also
org.apache.spark.sql.Column
final def getClass(): Class[_]

Definition Classes
AnyRef → Any
def hashCode(): Int

Definition Classes
AnyRef → Any
final def isInstanceOf[T0]: Boolean

Definition Classes
Any
def modify(f: (Column) ⇒ Column): Array[Column]

Modifies the column with the provided function.
Modifies the column with the provided function.
f
the new value to set.
returns
the array of columns with the modifications.
final def ne(arg0: AnyRef): Boolean

Definition Classes
AnyRef
final def notify(): Unit

Definition Classes
AnyRef
final def notifyAll(): Unit

Definition Classes
AnyRef
def rename(newName: String): Array[Column]

Renames the column of focused element.
Renames the column of focused element.
newName
the new name of the column.
returns
an array with all the columns to use in a select.
def set(c: Column): Array[Column]

Sets a value in the focused column.
Sets a value in the focused column.
c
the new value to set.
returns
the array of columns with the modifications.
final def synchronized[T0](arg0: ⇒ T0): T0

Definition Classes
AnyRef
def toString(): String

Definition Classes
Lens → 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 Docs: object Lens | package sparkOptics

sealed abstract class Lens extends AnyRef

Abstract Value Members

abstract def column: Vector[String]

abstract def focusDataType: DataType

abstract def innerSchema: StructType

abstract def prune(prev: Vector[String] = Vector.empty): Array[Column]

abstract def renameWithPrefix(newName: String, prev: Vector[String]): Array[Column]

abstract def schema: StructType

abstract def setAux(newValue: Column, prev: Vector[String]): Array[Column]

Concrete Value Members

final def !=(arg0: Any): Boolean

final def ##(): Int

final def ==(arg0: Any): Boolean

final def asInstanceOf[T0]: T0

def clone(): AnyRef

def composeLens(nextLens: Lens): Lens

def composeProtoLens(nextProto: ProtoLens): Lens

final def eq(arg0: AnyRef): Boolean

def equals(arg0: Any): Boolean

def finalize(): Unit

def get: Column

final def getClass(): Class[_]

def hashCode(): Int

final def isInstanceOf[T0]: Boolean

def modify(f: (Column) ⇒ Column): Array[Column]

final def ne(arg0: AnyRef): Boolean

final def notify(): Unit

final def notifyAll(): Unit

def rename(newName: String): Array[Column]

def set(c: Column): Array[Column]

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 AnyRef

Inherited from Any

Ungrouped