org.datavec.dataframe.io

Class TypeUtils

java.lang.Object

org.datavec.dataframe.io.TypeUtils

@Immutable
public final class TypeUtils
extends java.lang.Object

Utilities for working with ColumnTypes

Field Summary

Fields

Modifier and Type	Field and Description
static java.time.format.DateTimeFormatter	DATE_FORMATTER
static java.time.format.DateTimeFormatter	DATE_TIME_FORMATTER
static java.util.List<java.lang.String>	FALSE_STRINGS
static java.util.List<java.lang.String>	FALSE_STRINGS_FOR_DETECTION
static com.google.common.collect.ImmutableList<java.lang.String>	MISSING_INDICATORS
static java.time.format.DateTimeFormatter	TIME_DETECTION_FORMATTER
static java.time.format.DateTimeFormatter	TIME_FORMATTER
static java.util.List<java.lang.String>	TRUE_STRINGS
static java.util.List<java.lang.String>	TRUE_STRINGS_FOR_DETECTION

Method Summary

Modifier and Type	Method and Description
static java.time.format.DateTimeFormatter	getDateFormatter(java.lang.String dateValue) Returns the first DateTimeFormatter to parse the string, which represents a DATE
static java.time.format.DateTimeFormatter	getDateTimeFormatter(java.lang.String dateTimeValue) Returns the first DateTimeFormatter to parse the string, which represents a DATE_TIME
static java.time.format.DateTimeFormatter	getTimeFormatter(java.lang.String timeValue) Returns the first DateTimeFormatter to parse the string, which represents a TIME
static Column	newColumn(java.lang.String name, ColumnType type) Constructs and returns a column for the given name and type

Methods inherited from class java.lang.Object

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

Field Detail

TRUE_STRINGS

public static final java.util.List<java.lang.String> TRUE_STRINGS

TRUE_STRINGS_FOR_DETECTION

public static final java.util.List<java.lang.String> TRUE_STRINGS_FOR_DETECTION

FALSE_STRINGS

public static final java.util.List<java.lang.String> FALSE_STRINGS

FALSE_STRINGS_FOR_DETECTION

public static final java.util.List<java.lang.String> FALSE_STRINGS_FOR_DETECTION

DATE_FORMATTER

public static final java.time.format.DateTimeFormatter DATE_FORMATTER

DATE_TIME_FORMATTER

public static final java.time.format.DateTimeFormatter DATE_TIME_FORMATTER

TIME_FORMATTER

public static final java.time.format.DateTimeFormatter TIME_FORMATTER

TIME_DETECTION_FORMATTER

public static final java.time.format.DateTimeFormatter TIME_DETECTION_FORMATTER

MISSING_INDICATORS

public static final com.google.common.collect.ImmutableList<java.lang.String> MISSING_INDICATORS

Method Detail

newColumn

public static Column newColumn(@Nonnull
                               java.lang.String name,
                               @Nonnull
                               ColumnType type)

Constructs and returns a column for the given name and type

getDateFormatter

public static java.time.format.DateTimeFormatter getDateFormatter(java.lang.String dateValue)

Returns the first DateTimeFormatter to parse the string, which represents a DATE

It's intended to be called at the start of a large formatting job so that it picks the write format and is not called again. This is an optimization, because the older version, which will try multiple formatters was too slow for large data sets.

getDateTimeFormatter

public static java.time.format.DateTimeFormatter getDateTimeFormatter(java.lang.String dateTimeValue)

Returns the first DateTimeFormatter to parse the string, which represents a DATE_TIME

It's intended to be called at the start of a large formatting job so that it picks the write format and is not called again. This is an optimization, because the older version, which will try multiple formatters was too slow for large data sets.

getTimeFormatter

public static java.time.format.DateTimeFormatter getTimeFormatter(java.lang.String timeValue)

Returns the first DateTimeFormatter to parse the string, which represents a TIME

It's intended to be called at the start of a large formatting job so that it picks the write format and is not called again. This is an optimization, because the older version, which will try multiple formatters was too slow for large data sets.