Package org.apache.spark.sql

Class DatasetHolder<T>

Object

org.apache.spark.sql.DatasetHolder<T>

public abstract class DatasetHolder<T>
extends Object

A container for a Dataset, used for implicit conversions in Scala.

To use this, import implicit conversions in SQL:

   val spark: SparkSession = ...
   import spark.implicits._
 

Since:

1.6.0

Constructor Summary

Constructors

Constructor	Description
DatasetHolder()

Method Summary

Modifier and Type	Method	Description
abstract Dataset<Row>	toDF()
abstract Dataset<Row>	toDF(scala.collection.immutable.Seq<String> colNames)
abstract Dataset<T>	toDS()

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

DatasetHolder

public DatasetHolder()

Method Details

toDF

public abstract Dataset<Row> toDF()

toDF

public abstract Dataset<Row> toDF(scala.collection.immutable.Seq<String> colNames)

toDS

public abstract Dataset<T> toDS()