Package org.apache.spark.sql

Class ColumnName

Object

org.apache.spark.sql.Column

org.apache.spark.sql.ColumnName

All Implemented Interfaces:

org.apache.spark.internal.Logging

public class ColumnName
extends Column

A convenient class used for constructing schema.

Since:

1.3.0

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.spark.internal.Logging

org.apache.spark.internal.Logging.LogStringContext, org.apache.spark.internal.Logging.SparkShellLoggingFilter

Constructor Summary

Constructors

Constructor	Description
ColumnName(String name)

Method Summary

Modifier and Type	Method	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(StructType structType)	Creates a new StructField of type struct.
StructField	struct(scala.collection.immutable.Seq<StructField> fields)	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, asc_nulls_first, asc_nulls_last, between, bitwiseAND, bitwiseOR, bitwiseXOR, cast, cast, contains, desc, desc_nulls_first, desc_nulls_last, divide, dropFields, endsWith, endsWith, eqNullSafe, equals, equalTo, explain, geq, getField, getItem, gt, hashCode, ilike, isin, isin, isInCollection, isInCollection, isNaN, isNotNull, isNull, leq, like, lt, minus, mod, multiply, name, node, notEqual, or, otherwise, over, over, plus, rlike, startsWith, startsWith, substr, substr, toString, try_cast, try_cast, when, withField

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

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

initializeForcefully, initializeLogIfNecessary, initializeLogIfNecessary, initializeLogIfNecessary$default$2, isTraceEnabled, log, logDebug, logDebug, logDebug, logDebug, logError, logError, logError, logError, logInfo, logInfo, logInfo, logInfo, logName, LogStringContext, logTrace, logTrace, logTrace, logTrace, logWarning, logWarning, logWarning, logWarning, org$apache$spark$internal$Logging$$log_, org$apache$spark$internal$Logging$$log__$eq, withLogContext

Constructor Details

ColumnName

public ColumnName(String name)

Method Details

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.immutable.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