util

class AbstractScalaRowIterator[T] extends Iterator[T]

Shim to allow us to implement scala.Iterator in Java.
class ArrayBasedMapData extends MapData
abstract class ArrayData extends SpecializedGetters with Serializable
class CaseInsensitiveMap[T] extends Map[String, T] with Serializable

Builds a map in which keys are case insensitive.
class GenericArrayData extends ArrayData
abstract class MapData extends Serializable

This is an internal data representation for map type in Spark SQL.
class QuantileSummaries extends Serializable

Helper class to compute approximate quantile summary.
class StringKeyHashMap[T] extends AnyRef

object ArrayBasedMapData extends Serializable
object ArrayData extends Serializable
object CaseInsensitiveMap extends Serializable
object CompressionCodecs
object DateTimeUtils

Helper functions for converting between internal and external date and time representations.
object NumberConverter
object ParseModes
object QuantileSummaries extends Serializable
object StringKeyHashMap

Build a map with String type of key, and it also supports either key case sensitive or insensitive.
object StringUtils
object TypeUtils

Helper functions to check for valid data types.
def benchmark[A](f: ⇒ A): A
def fileToString(file: File, encoding: String = "UTF-8"): String
def quietly[A](f: ⇒ A): A

Silences output to stderr or stdout for the duration of f
def quoteIdentifier(name: String): String
def resourceToBytes(resource: String, classLoader: ClassLoader = Utils.getSparkClassLoader): Array[Byte]
def resourceToString(resource: String, encoding: String = "UTF-8", classLoader: ClassLoader = Utils.getSparkClassLoader): String
def sideBySide(left: Seq[String], right: Seq[String]): Seq[String]
def sideBySide(left: String, right: String): Seq[String]
def stackTraceToString(t: Throwable): String
def stringOrNull(a: AnyRef): String
def stringToFile(file: File, str: String): File
def toPrettySQL(e: Expression): String
def usePrettyExpression(e: Expression): Expression