Encoders (Spark 3.0.3 JavaDoc)

Object
- org.apache.spark.sql.Encoders

```
public class Encoders
extends Object
```
Methods for creating an Encoder.

Since:

1.6.0

Constructor Summary

Constructors
Constructor and Description

Encoders()

Constructors
Constructor and Description
`Encoders()`

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method and Description
`static <T> Encoder<T>`	`bean(Class<T> beanClass)` Creates an encoder for Java Bean of type T.
`static Encoder<byte[]>`	`BINARY()` An encoder for arrays of bytes.
`static Encoder<Boolean>`	`BOOLEAN()` An encoder for nullable boolean type.
`static Encoder<Byte>`	`BYTE()` An encoder for nullable byte type.
`static Encoder<java.sql.Date>`	`DATE()` An encoder for nullable date type.
`static Encoder<java.math.BigDecimal>`	`DECIMAL()` An encoder for nullable decimal type.
`static Encoder<Double>`	`DOUBLE()` An encoder for nullable double type.
`static Encoder<Float>`	`FLOAT()` An encoder for nullable float type.
`static Encoder<java.time.Instant>`	`INSTANT()` Creates an encoder that serializes instances of the `java.time.Instant` class to the internal representation of nullable Catalyst's TimestampType.
`static Encoder<Integer>`	`INT()` An encoder for nullable int type.
`static <T> Encoder<T>`	`javaSerialization(Class<T> clazz)` Creates an encoder that serializes objects of type T using generic Java serialization.
`static <T> Encoder<T>`	`javaSerialization(scala.reflect.ClassTag<T> evidence$2)` (Scala-specific) Creates an encoder that serializes objects of type T using generic Java serialization.
`static <T> Encoder<T>`	`kryo(Class<T> clazz)` Creates an encoder that serializes objects of type T using Kryo.
`static <T> Encoder<T>`	`kryo(scala.reflect.ClassTag<T> evidence$1)` (Scala-specific) Creates an encoder that serializes objects of type T using Kryo.
`static Encoder<java.time.LocalDate>`	`LOCALDATE()` Creates an encoder that serializes instances of the `java.time.LocalDate` class to the internal representation of nullable Catalyst's DateType.
`static Encoder<Long>`	`LONG()` An encoder for nullable long type.
`static <T extends scala.Product> Encoder<T>`	`product(scala.reflect.api.TypeTags.TypeTag<T> evidence$5)` An encoder for Scala's product type (tuples, case classes, etc).
`static Encoder<Object>`	`scalaBoolean()` An encoder for Scala's primitive boolean type.
`static Encoder<Object>`	`scalaByte()` An encoder for Scala's primitive byte type.
`static Encoder<Object>`	`scalaDouble()` An encoder for Scala's primitive double type.
`static Encoder<Object>`	`scalaFloat()` An encoder for Scala's primitive float type.
`static Encoder<Object>`	`scalaInt()` An encoder for Scala's primitive int type.
`static Encoder<Object>`	`scalaLong()` An encoder for Scala's primitive long type.
`static Encoder<Object>`	`scalaShort()` An encoder for Scala's primitive short type.
`static Encoder<Short>`	`SHORT()` An encoder for nullable short type.
`static Encoder<String>`	`STRING()` An encoder for nullable string type.
`static Encoder<java.sql.Timestamp>`	`TIMESTAMP()` An encoder for nullable timestamp type.
`static <T1,T2> Encoder<scala.Tuple2<T1,T2>>`	`tuple(Encoder<T1> e1, Encoder<T2> e2)` An encoder for 2-ary tuples.
`static <T1,T2,T3> Encoder<scala.Tuple3<T1,T2,T3>>`	`tuple(Encoder<T1> e1, Encoder<T2> e2, Encoder<T3> e3)` An encoder for 3-ary tuples.
`static <T1,T2,T3,T4> Encoder<scala.Tuple4<T1,T2,T3,T4>>`	`tuple(Encoder<T1> e1, Encoder<T2> e2, Encoder<T3> e3, Encoder<T4> e4)` An encoder for 4-ary tuples.
`static <T1,T2,T3,T4,T5> Encoder<scala.Tuple5<T1,T2,T3,T4,T5>>`	`tuple(Encoder<T1> e1, Encoder<T2> e2, Encoder<T3> e3, Encoder<T4> e4, Encoder<T5> e5)` An encoder for 5-ary tuples.

Methods inherited from class Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - Encoders
```
public Encoders()
```
- Method Detail
  - BOOLEAN
```
public static Encoder<Boolean> BOOLEAN()
```
    An encoder for nullable boolean type. The Scala primitive encoder is available as scalaBoolean.
    
    Returns:
    
    (undocumented)
    
    Since:
    
    1.6.0
  - BYTE
```
public static Encoder<Byte> BYTE()
```
    An encoder for nullable byte type. The Scala primitive encoder is available as scalaByte.
    
    Returns:
    
    (undocumented)
    
    Since:
    
    1.6.0
  - SHORT
```
public static Encoder<Short> SHORT()
```
    An encoder for nullable short type. The Scala primitive encoder is available as scalaShort.
    
    Returns:
    
    (undocumented)
    
    Since:
    
    1.6.0
  - INT
```
public static Encoder<Integer> INT()
```
    An encoder for nullable int type. The Scala primitive encoder is available as scalaInt.
    
    Returns:
    
    (undocumented)
    
    Since:
    
    1.6.0
  - LONG
```
public static Encoder<Long> LONG()
```
    An encoder for nullable long type. The Scala primitive encoder is available as scalaLong.
    
    Returns:
    
    (undocumented)
    
    Since:
    
    1.6.0
  - FLOAT
```
public static Encoder<Float> FLOAT()
```
    An encoder for nullable float type. The Scala primitive encoder is available as scalaFloat.
    
    Returns:
    
    (undocumented)
    
    Since:
    
    1.6.0
  - DOUBLE
```
public static Encoder<Double> DOUBLE()
```
    An encoder for nullable double type. The Scala primitive encoder is available as scalaDouble.
    
    Returns:
    
    (undocumented)
    
    Since:
    
    1.6.0
  - STRING
```
public static Encoder<String> STRING()
```
    An encoder for nullable string type.
    
    Returns:
    
    (undocumented)
    
    Since:
    
    1.6.0
  - DECIMAL
```
public static Encoder<java.math.BigDecimal> DECIMAL()
```
    An encoder for nullable decimal type.
    
    Returns:
    
    (undocumented)
    
    Since:
    
    1.6.0
  - DATE
```
public static Encoder<java.sql.Date> DATE()
```
    An encoder for nullable date type.
    
    Returns:
    
    (undocumented)
    
    Since:
    
    1.6.0
  - LOCALDATE
```
public static Encoder<java.time.LocalDate> LOCALDATE()
```
    Creates an encoder that serializes instances of the java.time.LocalDate class to the internal representation of nullable Catalyst's DateType.
    
    Returns:
    
    (undocumented)
    
    Since:
    
    3.0.0
  - TIMESTAMP
```
public static Encoder<java.sql.Timestamp> TIMESTAMP()
```
    An encoder for nullable timestamp type.
    
    Returns:
    
    (undocumented)
    
    Since:
    
    1.6.0
  - INSTANT
```
public static Encoder<java.time.Instant> INSTANT()
```
    Creates an encoder that serializes instances of the java.time.Instant class to the internal representation of nullable Catalyst's TimestampType.
    
    Returns:
    
    (undocumented)
    
    Since:
    
    3.0.0
  - BINARY
```
public static Encoder<byte[]> BINARY()
```
    An encoder for arrays of bytes.
    
    Returns:
    
    (undocumented)
    
    Since:
    
    1.6.1
  - bean
```
public static <T> Encoder<T> bean(Class<T> beanClass)
```
    Creates an encoder for Java Bean of type T.
    T must be publicly accessible.
    supported types for java bean field: - primitive types: boolean, int, double, etc. - boxed types: Boolean, Integer, Double, etc. - String - java.math.BigDecimal, java.math.BigInteger - time related: java.sql.Date, java.sql.Timestamp, java.time.LocalDate, java.time.Instant - collection types: array, java.util.List, and map - nested java bean.
    
    Parameters:
    
    beanClass - (undocumented)
    
    Returns:
    
    (undocumented)
    
    Since:
    
    1.6.0
  - kryo
```
public static <T> Encoder<T> kryo(scala.reflect.ClassTag<T> evidence$1)
```
    (Scala-specific) Creates an encoder that serializes objects of type T using Kryo. This encoder maps T into a single byte array (binary) field.
    T must be publicly accessible.
    
    Parameters:
    
    evidence$1 - (undocumented)
    
    Returns:
    
    (undocumented)
    
    Since:
    
    1.6.0
  - kryo
```
public static <T> Encoder<T> kryo(Class<T> clazz)
```
    Creates an encoder that serializes objects of type T using Kryo. This encoder maps T into a single byte array (binary) field.
    T must be publicly accessible.
    
    Parameters:
    
    clazz - (undocumented)
    
    Returns:
    
    (undocumented)
    
    Since:
    
    1.6.0
  - javaSerialization
```
public static <T> Encoder<T> javaSerialization(scala.reflect.ClassTag<T> evidence$2)
```
    (Scala-specific) Creates an encoder that serializes objects of type T using generic Java serialization. This encoder maps T into a single byte array (binary) field.
    T must be publicly accessible.
    
    Parameters:
    
    evidence$2 - (undocumented)
    
    Returns:
    
    (undocumented)
    
    Since:
    
    1.6.0
    
    Note:
    
    This is extremely inefficient and should only be used as the last resort.
  - javaSerialization
```
public static <T> Encoder<T> javaSerialization(Class<T> clazz)
```
    Creates an encoder that serializes objects of type T using generic Java serialization. This encoder maps T into a single byte array (binary) field.
    T must be publicly accessible.
    
    Parameters:
    
    clazz - (undocumented)
    
    Returns:
    
    (undocumented)
    
    Since:
    
    1.6.0
    
    Note:
    
    This is extremely inefficient and should only be used as the last resort.
  - tuple
```
public static <T1,T2> Encoder<scala.Tuple2<T1,T2>> tuple(Encoder<T1> e1,
                                                         Encoder<T2> e2)
```
    An encoder for 2-ary tuples.
    
    Parameters:
    
    e1 - (undocumented)
    
    e2 - (undocumented)
    
    Returns:
    
    (undocumented)
    
    Since:
    
    1.6.0
  - tuple
```
public static <T1,T2,T3> Encoder<scala.Tuple3<T1,T2,T3>> tuple(Encoder<T1> e1,
                                                               Encoder<T2> e2,
                                                               Encoder<T3> e3)
```
    An encoder for 3-ary tuples.
    
    Parameters:
    
    e1 - (undocumented)
    
    e2 - (undocumented)
    
    e3 - (undocumented)
    
    Returns:
    
    (undocumented)
    
    Since:
    
    1.6.0
  - tuple
```
public static <T1,T2,T3,T4> Encoder<scala.Tuple4<T1,T2,T3,T4>> tuple(Encoder<T1> e1,
                                                                     Encoder<T2> e2,
                                                                     Encoder<T3> e3,
                                                                     Encoder<T4> e4)
```
    An encoder for 4-ary tuples.
    
    Parameters:
    
    e1 - (undocumented)
    
    e2 - (undocumented)
    
    e3 - (undocumented)
    
    e4 - (undocumented)
    
    Returns:
    
    (undocumented)
    
    Since:
    
    1.6.0
  - tuple
```
public static <T1,T2,T3,T4,T5> Encoder<scala.Tuple5<T1,T2,T3,T4,T5>> tuple(Encoder<T1> e1,
                                                                           Encoder<T2> e2,
                                                                           Encoder<T3> e3,
                                                                           Encoder<T4> e4,
                                                                           Encoder<T5> e5)
```
    An encoder for 5-ary tuples.
    
    Parameters:
    
    e1 - (undocumented)
    
    e2 - (undocumented)
    
    e3 - (undocumented)
    
    e4 - (undocumented)
    
    e5 - (undocumented)
    
    Returns:
    
    (undocumented)
    
    Since:
    
    1.6.0
  - product
```
public static <T extends scala.Product> Encoder<T> product(scala.reflect.api.TypeTags.TypeTag<T> evidence$5)
```
    An encoder for Scala's product type (tuples, case classes, etc).
    
    Parameters:
    
    evidence$5 - (undocumented)
    
    Returns:
    
    (undocumented)
    
    Since:
    
    2.0.0
  - scalaInt
```
public static Encoder<Object> scalaInt()
```
    An encoder for Scala's primitive int type.
    
    Returns:
    
    (undocumented)
    
    Since:
    
    2.0.0
  - scalaLong
```
public static Encoder<Object> scalaLong()
```
    An encoder for Scala's primitive long type.
    
    Returns:
    
    (undocumented)
    
    Since:
    
    2.0.0
  - scalaDouble
```
public static Encoder<Object> scalaDouble()
```
    An encoder for Scala's primitive double type.
    
    Returns:
    
    (undocumented)
    
    Since:
    
    2.0.0
  - scalaFloat
```
public static Encoder<Object> scalaFloat()
```
    An encoder for Scala's primitive float type.
    
    Returns:
    
    (undocumented)
    
    Since:
    
    2.0.0
  - scalaByte
```
public static Encoder<Object> scalaByte()
```
    An encoder for Scala's primitive byte type.
    
    Returns:
    
    (undocumented)
    
    Since:
    
    2.0.0
  - scalaShort
```
public static Encoder<Object> scalaShort()
```
    An encoder for Scala's primitive short type.
    
    Returns:
    
    (undocumented)
    
    Since:
    
    2.0.0
  - scalaBoolean
```
public static Encoder<Object> scalaBoolean()
```
    An encoder for Scala's primitive boolean type.
    
    Returns:
    
    (undocumented)
    
    Since:
    
    2.0.0

Class Encoders

Constructor Summary

Method Summary

Methods inherited from class Object

Constructor Detail

Encoders

Method Detail

BOOLEAN

BYTE

SHORT

INT

LONG

FLOAT

DOUBLE

STRING

DECIMAL

DATE

LOCALDATE

TIMESTAMP

INSTANT

BINARY

bean

kryo

kryo

javaSerialization

javaSerialization

tuple

tuple

tuple

tuple

product

scalaInt

scalaLong

scalaDouble

scalaFloat

scalaByte

scalaShort

scalaBoolean