org.datavec.api.transform.transform.time

Class DeriveColumnsFromTimeTransform.Builder

java.lang.Object

org.datavec.api.transform.transform.time.DeriveColumnsFromTimeTransform.Builder

Enclosing class:

DeriveColumnsFromTimeTransform

public static class DeriveColumnsFromTimeTransform.Builder
extends Object

Constructor Summary

Constructors

Constructor and Description
Builder(String timeColumnName)

Method Summary

Modifier and Type	Method and Description
DeriveColumnsFromTimeTransform.Builder	addIntegerDerivedColumn(String columnName, org.joda.time.DateTimeFieldType type) Add an integer derived column - for example, the hour of day, etc.
DeriveColumnsFromTimeTransform.Builder	addStringDerivedColumn(String columnName, String format, org.joda.time.DateTimeZone timeZone) Add a String column (for example, human readable format), derived from the time
DeriveColumnsFromTimeTransform	build() Create the transform instance
DeriveColumnsFromTimeTransform.Builder	insertAfter(String columnName) Where should the new columns be inserted? By default, they will be inserted after the source column

Methods inherited from class java.lang.Object

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

Constructor Detail

Builder

public Builder(String timeColumnName)

Parameters:

timeColumnName - The name of the time column from which to derive the new values

Method Detail

insertAfter

public DeriveColumnsFromTimeTransform.Builder insertAfter(String columnName)

Where should the new columns be inserted? By default, they will be inserted after the source column

Parameters:

columnName - Name of the column to insert the derived columns after

addStringDerivedColumn

public DeriveColumnsFromTimeTransform.Builder addStringDerivedColumn(String columnName,
                                                                     String format,
                                                                     org.joda.time.DateTimeZone timeZone)

Add a String column (for example, human readable format), derived from the time

Parameters:

columnName - Name of the new/derived column

format - Joda time format, as per http://www.joda.org/joda-time/apidocs/org/joda/time/format/DateTimeFormat.html

timeZone - Timezone to use for formatting

addIntegerDerivedColumn

public DeriveColumnsFromTimeTransform.Builder addIntegerDerivedColumn(String columnName,
                                                                      org.joda.time.DateTimeFieldType type)

Add an integer derived column - for example, the hour of day, etc. Uses timezone from the time column metadata

Parameters:

columnName - Name of the column

type - Type of field (for example, DateTimeFieldType.hourOfDay() etc)

build

public DeriveColumnsFromTimeTransform build()

Create the transform instance