org.apache.spark.sql

Class ColumnName

Object

org.apache.spark.sql.Column

org.apache.spark.sql.ColumnName

All Implemented Interfaces:

Logging

public class ColumnName
extends Column

A convenient class used for constructing schema.

Since:

1.3.0

Constructor Summary

Constructors

Constructor and Description
ColumnName(String name)

Method Summary

Modifier and Type	Method and Description
StructField	array(DataType dataType) Creates a new StructField of type array.
StructField	binary() Creates a new StructField of type binary.
StructField	date() Creates a new StructField of type date.
StructField	decimal() Creates a new StructField of type decimal.
StructField	decimal(int precision, int scale) Creates a new StructField of type decimal.
StructField	map(DataType keyType, DataType valueType) Creates a new StructField of type map.
StructField	map(MapType mapType)
StructField	string() Creates a new StructField of type string.
StructField	struct(scala.collection.Seq<StructField> fields) Creates a new StructField of type struct.
StructField	struct(StructType structType) Creates a new StructField of type struct.
StructField	timestamp() Creates a new StructField of type timestamp.

Methods inherited from class org.apache.spark.sql.Column

alias, and, apply, as, as, as, as, as, as, asc_nulls_first, asc_nulls_last, asc, between, bitwiseAND, bitwiseOR, bitwiseXOR, cast, cast, contains, desc_nulls_first, desc_nulls_last, desc, divide, endsWith, endsWith, eqNullSafe, equals, equalTo, explain, expr, geq, getField, getItem, gt, hashCode, isin, isin, isInCollection, isInCollection, isNaN, isNotNull, isNull, leq, like, lt, minus, mod, multiply, name, notEqual, or, otherwise, over, over, plus, rlike, startsWith, startsWith, substr, substr, toString, unapply, when

Methods inherited from class Object

getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.apache.spark.internal.Logging

initializeLogging, initializeLogIfNecessary, initializeLogIfNecessary, isTraceEnabled, log_, log, logDebug, logDebug, logError, logError, logInfo, logInfo, logName, logTrace, logTrace, logWarning, logWarning

Constructor Detail

ColumnName

public ColumnName(String name)

Method Detail

array

public StructField array(DataType dataType)

Creates a new StructField of type array.

Parameters:

dataType - (undocumented)

Returns:

(undocumented)

Since:

1.3.0

binary

public StructField binary()

Creates a new StructField of type binary.

Returns:

(undocumented)

Since:

1.3.0

date

public StructField date()

Creates a new StructField of type date.

Returns:

(undocumented)

Since:

1.3.0

decimal

public StructField decimal()

Creates a new StructField of type decimal.

Returns:

(undocumented)

Since:

1.3.0

decimal

public StructField decimal(int precision,
                           int scale)

Creates a new StructField of type decimal.

Parameters:

precision - (undocumented)

scale - (undocumented)

Returns:

(undocumented)

Since:

1.3.0

map

public StructField map(DataType keyType,
                       DataType valueType)

Creates a new StructField of type map.

Parameters:

keyType - (undocumented)

valueType - (undocumented)

Returns:

(undocumented)

Since:

1.3.0

map

public StructField map(MapType mapType)

string

public StructField string()

Creates a new StructField of type string.

Returns:

(undocumented)

Since:

1.3.0

struct

public StructField struct(scala.collection.Seq<StructField> fields)

Creates a new StructField of type struct.

Parameters:

fields - (undocumented)

Returns:

(undocumented)

Since:

1.3.0

struct

public StructField struct(StructType structType)

Creates a new StructField of type struct.

Parameters:

structType - (undocumented)

Returns:

(undocumented)

Since:

1.3.0

timestamp

public StructField timestamp()

Creates a new StructField of type timestamp.

Returns:

(undocumented)

Since:

1.3.0