ExpressionEncoder

A factory for constructing encoders that convert objects and primitives to and from the internal row format using catalyst expressions and code generation. By default, the expressions used to retrieve values from an input row when producing an object will be created as follows:

Classes will have their sub fields extracted by name using UnresolvedAttribute expressions and UnresolvedExtractValue expressions.
Tuples will have their subfields extracted by position using BoundReference expressions.
Primitives will have their values extracted from the first ordinal with a schema that defaults to the name value.

Linear Supertypes

Serializable, Serializable, AnyRef, Any

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
def apply[T]()(implicit arg0: scala.reflect.api.JavaUniverse.TypeTag[T]): ExpressionEncoder[T]
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
final def isInstanceOf[T0]: Boolean

Definition Classes
Any
def javaBean[T](beanClass: Class[T]): ExpressionEncoder[T]
final def ne(arg0: AnyRef): Boolean

Definition Classes
AnyRef
final def notify(): Unit

Definition Classes
AnyRef
final def notifyAll(): Unit

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

Definition Classes
AnyRef
def toString(): String

Definition Classes
AnyRef → Any
def tuple[T1, T2, T3, T4, T5](e1: ExpressionEncoder[T1], e2: ExpressionEncoder[T2], e3: ExpressionEncoder[T3], e4: ExpressionEncoder[T4], e5: ExpressionEncoder[T5]): ExpressionEncoder[(T1, T2, T3, T4, T5)]
def tuple[T1, T2, T3, T4](e1: ExpressionEncoder[T1], e2: ExpressionEncoder[T2], e3: ExpressionEncoder[T3], e4: ExpressionEncoder[T4]): ExpressionEncoder[(T1, T2, T3, T4)]
def tuple[T1, T2, T3](e1: ExpressionEncoder[T1], e2: ExpressionEncoder[T2], e3: ExpressionEncoder[T3]): ExpressionEncoder[(T1, T2, T3)]
def tuple[T1, T2](e1: ExpressionEncoder[T1], e2: ExpressionEncoder[T2]): ExpressionEncoder[(T1, T2)]
def tuple[T](e: ExpressionEncoder[T]): ExpressionEncoder[(T)]
def tuple(encoders: Seq[ExpressionEncoder[_]]): ExpressionEncoder[_]

Given a set of N encoders, constructs a new encoder that produce objects as items in an N-tuple.
Given a set of N encoders, constructs a new encoder that produce objects as items in an N-tuple. Note that these encoders should be unresolved so that information about name/positional binding is preserved.
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: class ExpressionEncoder | package encoders

object ExpressionEncoder extends Serializable

Value Members

final def !=(arg0: Any): Boolean

final def ##(): Int

final def ==(arg0: Any): Boolean

def apply[T]()(implicit arg0: scala.reflect.api.JavaUniverse.TypeTag[T]): ExpressionEncoder[T]

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

final def isInstanceOf[T0]: Boolean

def javaBean[T](beanClass: Class[T]): ExpressionEncoder[T]

final def ne(arg0: AnyRef): Boolean

final def notify(): Unit

final def notifyAll(): Unit

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

def toString(): String

def tuple[T1, T2, T3, T4, T5](e1: ExpressionEncoder[T1], e2: ExpressionEncoder[T2], e3: ExpressionEncoder[T3], e4: ExpressionEncoder[T4], e5: ExpressionEncoder[T5]): ExpressionEncoder[(T1, T2, T3, T4, T5)]

def tuple[T1, T2, T3, T4](e1: ExpressionEncoder[T1], e2: ExpressionEncoder[T2], e3: ExpressionEncoder[T3], e4: ExpressionEncoder[T4]): ExpressionEncoder[(T1, T2, T3, T4)]

def tuple[T1, T2, T3](e1: ExpressionEncoder[T1], e2: ExpressionEncoder[T2], e3: ExpressionEncoder[T3]): ExpressionEncoder[(T1, T2, T3)]

def tuple[T1, T2](e1: ExpressionEncoder[T1], e2: ExpressionEncoder[T2]): ExpressionEncoder[(T1, T2)]

def tuple[T](e: ExpressionEncoder[T]): ExpressionEncoder[(T)]

def tuple(encoders: Seq[ExpressionEncoder[_]]): ExpressionEncoder[_]

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 AnyRef

Inherited from Any

Ungrouped