DateTimeColumn (tablesaw-core 0.43.1 API)

java.lang.Object
- tech.tablesaw.columns.AbstractColumn<DateTimeColumn,LocalDateTime>
- - tech.tablesaw.api.DateTimeColumn

All Implemented Interfaces:

Iterable<LocalDateTime>, Comparator<LocalDateTime>, CategoricalColumn<LocalDateTime>, Column<LocalDateTime>, DateTimeFilters, DateTimeMapFunctions, TemporalColumn<LocalDateTime>, TemporalFillers<LocalDateTime,DateTimeColumn>, TemporalFilters<LocalDateTime>, TemporalMapFunctions<LocalDateTime>, DateAndDateTimeFilterSpec<LocalDateTime>, DateTimeFilterSpec<LocalDateTime>, FilterSpec<LocalDateTime>, InstantFilterSpec<LocalDateTime>, TimeAndDateTimeFilterSpec<LocalDateTime>
```
public class DateTimeColumn
extends AbstractColumn<DateTimeColumn,LocalDateTime>
implements DateTimeMapFunctions, DateTimeFilters, TemporalFillers<LocalDateTime,DateTimeColumn>, CategoricalColumn<LocalDateTime>
```
A column that contains long-integer encoded (packed) local date-time values

Field Summary

Fields
Modifier and Type Field Description

protected it.unimi.dsi.fastutil.longs.LongArrayList data
The dateTime values held in this column, in their PackedLocalDateTime format
- Fields inherited from class tech.tablesaw.columns.AbstractColumn
  DEFAULT_ARRAY_SIZE

Fields
Modifier and Type	Field	Description
`protected it.unimi.dsi.fastutil.longs.LongArrayList`	`data`	The dateTime values held in this column, in their `PackedLocalDateTime` format

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`DateTimeColumn`	`append(LocalDateTime dateTime)`	Appends value to the bottom of this column and return this column
`DateTimeColumn`	`append(Column<LocalDateTime> column)`	Appends all the values in the argument to the bottom of this column and return this column
`DateTimeColumn`	`append(Column<LocalDateTime> column, int row)`	Appends the value at the given row in the given column to the bottom of this column and return this column
`DateTimeColumn`	`appendCell(String stringValue)`	Add one element to the bottom of this column and set its value to the parsed value of the given String.
`DateTimeColumn`	`appendCell(String stringValue, AbstractColumnParser<?> parser)`	Add one element to the bottom of this column and set its value to the parsed value of the given String, as performed by the given parser
`DateTimeColumn`	`appendInternal(long dateTime)`	Returns this column with the argument appended at the bottom
`DateTimeColumn`	`appendMissing()`	Appends a missing value appropriate to the column
`DateTimeColumn`	`appendObj(Object obj)`	Appends the given value to the bottom of this column and return this column
`byte[]`	`asBytes(int rowNumber)`	Returns the contents of the cell at rowNumber as a byte[]
`double[]`	`asDoubleArray()`
`DoubleColumn`	`asDoubleColumn()`
`long[]`	`asEpochMillisArray()`	Returns an array where each entry is the difference, measured in milliseconds, between the LocalDateTime and midnight, January 1, 1970 UTC.
`long[]`	`asEpochMillisArray(ZoneOffset offset)`	Returns an array where each entry is the difference, measured in milliseconds, between the LocalDateTime and midnight, January 1, 1970 UTC.
`long[]`	`asEpochSecondArray()`	Returns an array where each entry is the difference, measured in seconds, between the LocalDateTime and midnight, January 1, 1970 UTC.
`long[]`	`asEpochSecondArray(ZoneOffset offset)`	Returns the seconds from epoch for each value as an array based on the given offset
`InstantColumn`	`asInstantColumn()`
`InstantColumn`	`asInstantColumn(ZoneId zone)`
`LocalDateTime[]`	`asObjectArray()`	Returns an array of objects as appropriate for my type of column
`Set<LocalDateTime>`	`asSet()`	Returns a Set containing all the unique values in this column
`List<LocalDateTime>`	`bottom(int n)`	Returns the smallest ("bottom") n values in the column
`int`	`byteSize()`	Returns the width of a cell in this column, in bytes.
`void`	`clear()`	Removes all elements TODO: Make this return this column
`int`	`compare(LocalDateTime o1, LocalDateTime o2)`
`boolean`	`contains(LocalDateTime dateTime)`	Returns `true` if the given object appears in this column, and false otherwise
`DateTimeColumn`	`copy()`	Returns a deep copy of the receiver
`int`	`countMissing()`	Returns the count of missing values in this column
`int`	`countUnique()`	Returns the count of unique values in this column.
`static DateTimeColumn`	`create(String name)`
`static DateTimeColumn`	`create(String name, int initialSize)`
`static DateTimeColumn`	`create(String name, LocalDateTime... data)`
`static DateTimeColumn`	`create(String name, Collection<LocalDateTime> data)`
`static DateTimeColumn`	`create(String name, Stream<LocalDateTime> stream)`
`static DateTimeColumn`	`createInternal(String name, long[] longs)`	For internal Tablesaw use only Returns a new column with the given name and data
`DateTimeColumn`	`emptyCopy()`	Returns a copy of the receiver with no data.
`DateTimeColumn`	`emptyCopy(int rowSize)`	Returns an empty copy of the receiver, with its internal storage initialized to the given row size.
`boolean`	`equals(int rowNumber1, int rowNumber2)`	Returns true if the value in this column at rowNumber1 is equal to the value at rowNumber2
`DateTimeColumn`	`fillWith(Iterable<LocalDateTime> iterable)`
`DateTimeColumn`	`fillWith(Supplier<LocalDateTime> supplier)`
`DateTimeColumn`	`fillWith(Iterator<LocalDateTime> iterator)`
`LocalDateTime`	`get(int index)`	Returns a value of the Object type stored in the column (e.g.
`double`	`getDouble(int i)`
`long`	`getLongInternal(int index)`	Returns the internal (long-encoded) value stored in the column at the given row
`protected long`	`getPackedDateTime(int index)`
`String`	`getString(int row)`	Returns a string representation of the value at the given row.
`String`	`getUnformattedString(int row)`	Returns a String representation of the value at index r, without any formatting applied
`boolean`	`isEmpty()`	Returns true if the column has no data
`boolean`	`isMissing(int rowNumber)`	Returns true if the value at rowNumber is missing
`Iterator<LocalDateTime>`	`iterator()`	Returns an iterator over elements of type `T`.
`DateTimeColumn`	`lag(int n)`	Returns a column of the same type and size as the receiver, containing the receivers values offset by n.
`it.unimi.dsi.fastutil.longs.LongIterator`	`longIterator()`
`LocalDateTime`	`max()`
`LocalDateTime`	`min()`
`DateTimeColumn`	`plus(long amountToAdd, ChronoUnit unit)`
`DateTimeColumn`	`removeMissing()`	Returns a copy of this column with the missing values removed
`it.unimi.dsi.fastutil.ints.IntComparator`	`rowComparator()`	Returns an IntComparator for sorting my rows
`DateTimeColumn`	`set(int index, long value)`
`DateTimeColumn`	`set(int index, LocalDateTime value)`	Sets the value at index row to the given value and return this column
`DateTimeColumn`	`set(int row, Column<LocalDateTime> column, int sourceRow)`	Sets the value at row to the value at sourceRow in the given column and return this column
`DateTimeColumn`	`set(Selection rowSelection, LocalDateTime newValue)`	Conditionally update this column, replacing current values with newValue for all rows where the current value matches the selection criteria
`DateTimeColumn`	`setMissing(int i)`	Sets the value at index i to the missing-value indicator for this column type, and return this column
`void`	`setPrintFormatter(DateTimeFormatter dateTimeFormatter)`
`void`	`setPrintFormatter(DateTimeFormatter dateTimeFormatter, String missingValueString)`
`void`	`setPrintFormatter(DateTimeColumnFormatter formatter)`
`int`	`size()`	Returns the number of elements in this column, including missing values
`void`	`sortAscending()`	Sorts my values in ascending order
`void`	`sortDescending()`	Sorts my values in descending order
`DateTimeColumn`	`subset(int[] rows)`	Return a column of the same type containing just those elements whose indexes are included in the given array
`Table`	`summary()`	Returns a table containing a ColumnType specific summary of the data in this column
`List<LocalDateTime>`	`top(int n)`	Returns the largest ("top") n values in the column
`DateTimeColumn`	`unique()`	Returns a column of the same type containing only the unique values
`int`	`valueHash(int rowNumber)`	Returns an int suitable as a hash for the value in this column at the given index
`static boolean`	`valueIsMissing(long value)`
`DateTimeColumn`	`where(Selection selection)`	Returns a new column containing the subset referenced by the `Selection`

Methods inherited from class tech.tablesaw.columns.AbstractColumn
asStringColumn, filter, first, indexOf, inRange, last, map, max, min, name, parser, sampleN, sampleX, set, setName, setParser, sorted, toString, type

Methods inherited from interface tech.tablesaw.api.CategoricalColumn
countByCategory

Methods inherited from interface tech.tablesaw.columns.Column
allMatch, anyMatch, asList, asStringColumn, columnWidth, count, count, filter, first, indexOf, inRange, interpolate, isMissing, isNotMissing, last, map, map, mapInto, max, max, min, min, name, noneMatch, parser, print, reduce, reduce, rolling, sampleN, sampleX, set, set, set, setMissingTo, setName, setParser, sorted, title, type

Methods inherited from interface java.util.Comparator
comparing, comparing, comparingDouble, comparingInt, comparingLong, equals, naturalOrder, nullsFirst, nullsLast, reversed, reverseOrder, thenComparing, thenComparing, thenComparing, thenComparingDouble, thenComparingInt, thenComparingLong

Methods inherited from interface tech.tablesaw.columns.datetimes.DateTimeFilters
isAfter, isAfter, isAfter, isAfterNoon, isBefore, isBefore, isBefore, isBeforeNoon, isBetweenExcluding, isBetweenIncluding, isEqualTo, isEqualTo, isFirstDayOfMonth, isFriday, isInApril, isInAugust, isInDecember, isInFebruary, isInJanuary, isInJuly, isInJune, isInMarch, isInMay, isInNovember, isInOctober, isInQ1, isInQ2, isInQ3, isInQ4, isInSeptember, isInYear, isLastDayOfMonth, isMidnight, isMissing, isMonday, isNoon, isNotEqualTo, isNotEqualTo, isNotMissing, isOnOrAfter, isOnOrAfter, isOnOrAfter, isOnOrBefore, isOnOrBefore, isOnOrBefore, isSaturday, isSunday, isThursday, isTuesday, isWednesday

Methods inherited from interface tech.tablesaw.columns.datetimes.DateTimeMapFunctions
date, dayOfMonth, dayOfWeek, dayOfWeekValue, dayOfYear, hour, hourMinute, lead, minute, minuteOfDay, month, monthValue, plusDays, plusHours, plusMicros, plusMillis, plusMinutes, plusMonths, plusSeconds, plusWeeks, plusYears, secondOfDay, time, timeWindow, timeWindow, year, yearDay, yearMonth, yearQuarter, yearWeek

Methods inherited from interface java.lang.Iterable
forEach, spliterator

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface tech.tablesaw.columns.temporal.TemporalFilters
eval, eval, eval, eval, eval, isAfter, isBefore, isBetweenExcluding, isBetweenIncluding, isEqualTo

Methods inherited from interface tech.tablesaw.columns.temporal.TemporalMapFunctions
difference, differenceInDays, differenceInHours, differenceInMilliseconds, differenceInMinutes, differenceInSeconds, differenceInYears, missingValues, temporalColumnName

- Field Detail
  - data
```
protected it.unimi.dsi.fastutil.longs.LongArrayList data
```
    The dateTime values held in this column, in their PackedLocalDateTime format
- Method Detail
  - valueHash
```
public int valueHash(int rowNumber)
```
    Returns an int suitable as a hash for the value in this column at the given index
    
    Specified by:
    
    valueHash in interface Column<LocalDateTime>
  - equals
```
public boolean equals(int rowNumber1,
                      int rowNumber2)
```
    Returns true if the value in this column at rowNumber1 is equal to the value at rowNumber2
    
    Specified by:
    
    equals in interface Column<LocalDateTime>
  - createInternal
```
public static DateTimeColumn createInternal(String name,
                                            long[] longs)
```
    For internal Tablesaw use only Returns a new column with the given name and data
    
    Parameters:
    
    name - The column name
    
    longs - An array of longs representing datetime values in Tablesaw internal format
  - create
```
public static DateTimeColumn create(String name)
```
  - create
```
public static DateTimeColumn create(String name,
                                    int initialSize)
```
  - create
```
public static DateTimeColumn create(String name,
                                    Collection<LocalDateTime> data)
```
  - create
```
public static DateTimeColumn create(String name,
                                    Stream<LocalDateTime> stream)
```
  - plus
```
public DateTimeColumn plus(long amountToAdd,
                           ChronoUnit unit)
```
    Specified by:
    
    plus in interface DateTimeMapFunctions
    
    Specified by:
    
    plus in interface TemporalMapFunctions<LocalDateTime>
  - create
```
public static DateTimeColumn create(String name,
                                    LocalDateTime... data)
```
  - valueIsMissing
```
public static boolean valueIsMissing(long value)
```
  - isMissing
```
public boolean isMissing(int rowNumber)
```
    Returns true if the value at rowNumber is missing
    
    Specified by:
    
    isMissing in interface Column<LocalDateTime>
  - subset
```
public DateTimeColumn subset(int[] rows)
```
    Return a column of the same type containing just those elements whose indexes are included in the given array
    
    Specified by:
    
    subset in interface Column<LocalDateTime>
    
    Overrides:
    
    subset in class AbstractColumn<DateTimeColumn,LocalDateTime>
  - removeMissing
```
public DateTimeColumn removeMissing()
```
    Returns a copy of this column with the missing values removed
    
    Specified by:
    
    removeMissing in interface Column<LocalDateTime>
  - contains
```
public boolean contains(LocalDateTime dateTime)
```
    Returns true if the given object appears in this column, and false otherwise
    TODO override in column subtypes for performance
    
    Specified by:
    
    contains in interface Column<LocalDateTime>
  - setMissing
```
public DateTimeColumn setMissing(int i)
```
    Sets the value at index i to the missing-value indicator for this column type, and return this column
    
    Specified by:
    
    setMissing in interface Column<LocalDateTime>
  - where
```
public DateTimeColumn where(Selection selection)
```
    Returns a new column containing the subset referenced by the Selection
    
    Specified by:
    
    where in interface Column<LocalDateTime>
  - setPrintFormatter
```
public void setPrintFormatter(DateTimeFormatter dateTimeFormatter,
                              String missingValueString)
```
  - setPrintFormatter
```
public void setPrintFormatter(DateTimeFormatter dateTimeFormatter)
```
  - setPrintFormatter
```
public void setPrintFormatter(DateTimeColumnFormatter formatter)
```
  - lag
```
public DateTimeColumn lag(int n)
```
    Returns a column of the same type and size as the receiver, containing the receivers values offset by n.
    For example if you lag a column containing 2, 3, 4 by 1, you get a column containing NA, 2, 3
    
    Specified by:
    
    lag in interface Column<LocalDateTime>
    
    Specified by:
    
    lag in interface DateTimeMapFunctions
  - appendCell
```
public DateTimeColumn appendCell(String stringValue)
```
    Add one element to the bottom of this column and set its value to the parsed value of the given String. Parsing is type-specific
    
    Specified by:
    
    appendCell in interface Column<LocalDateTime>
  - appendCell
```
public DateTimeColumn appendCell(String stringValue,
                                 AbstractColumnParser<?> parser)
```
    Add one element to the bottom of this column and set its value to the parsed value of the given String, as performed by the given parser
    
    Specified by:
    
    appendCell in interface Column<LocalDateTime>
  - append
```
public DateTimeColumn append(LocalDateTime dateTime)
```
    Appends value to the bottom of this column and return this column
    
    Specified by:
    
    append in interface Column<LocalDateTime>
  - appendObj
```
public DateTimeColumn appendObj(Object obj)
```
    Appends the given value to the bottom of this column and return this column
    
    Specified by:
    
    appendObj in interface Column<LocalDateTime>
  - size
```
public int size()
```
    Returns the number of elements in this column, including missing values
    
    Specified by:
    
    size in interface Column<LocalDateTime>
    
    Specified by:
    
    size in interface TemporalFilters<LocalDateTime>
  - appendInternal
```
public DateTimeColumn appendInternal(long dateTime)
```
    Returns this column with the argument appended at the bottom
    
    Specified by:
    
    appendInternal in interface TemporalColumn<LocalDateTime>
  - getString
```
public String getString(int row)
```
    Returns a string representation of the value at the given row.
    
    Specified by:
    
    getString in interface Column<LocalDateTime>
    
    Parameters:
    
    row - The index of the row.
    
    Returns:
    
    value as String
  - getUnformattedString
```
public String getUnformattedString(int row)
```
    Returns a String representation of the value at index r, without any formatting applied
    
    Specified by:
    
    getUnformattedString in interface Column<LocalDateTime>
  - emptyCopy
```
public DateTimeColumn emptyCopy()
```
    Returns a copy of the receiver with no data. The column name and type are the same.
    
    Specified by:
    
    emptyCopy in interface Column<LocalDateTime>
    
    Specified by:
    
    emptyCopy in interface TemporalMapFunctions<LocalDateTime>
    
    Specified by:
    
    emptyCopy in class AbstractColumn<DateTimeColumn,LocalDateTime>
    
    Returns:
    
    a empty copy of Column
  - emptyCopy
```
public DateTimeColumn emptyCopy(int rowSize)
```
    Returns an empty copy of the receiver, with its internal storage initialized to the given row size.
    
    Specified by:
    
    emptyCopy in interface Column<LocalDateTime>
    
    Parameters:
    
    rowSize - the initial row size
    
    Returns:
    
    a Column
  - copy
```
public DateTimeColumn copy()
```
    Returns a deep copy of the receiver
    
    Specified by:
    
    copy in interface Column<LocalDateTime>
    
    Returns:
    
    a Column
  - clear
```
public void clear()
```
    Removes all elements TODO: Make this return this column
    
    Specified by:
    
    clear in interface Column<LocalDateTime>
  - sortAscending
```
public void sortAscending()
```
    Sorts my values in ascending order
    
    Specified by:
    
    sortAscending in interface Column<LocalDateTime>
  - sortDescending
```
public void sortDescending()
```
    Sorts my values in descending order
    
    Specified by:
    
    sortDescending in interface Column<LocalDateTime>
  - summary
```
public Table summary()
```
    Returns a table containing a ColumnType specific summary of the data in this column
    
    Specified by:
    
    summary in interface Column<LocalDateTime>
  - countUnique
```
public int countUnique()
```
    Returns the count of unique values in this column.
    
    Specified by:
    
    countUnique in interface Column<LocalDateTime>
    
    Returns:
    
    unique values as int
  - unique
```
public DateTimeColumn unique()
```
    Returns a column of the same type containing only the unique values
    
    Specified by:
    
    unique in interface Column<LocalDateTime>
    
    Returns:
    
    a Column
  - isEmpty
```
public boolean isEmpty()
```
    Returns true if the column has no data
    
    Specified by:
    
    isEmpty in interface Column<LocalDateTime>
    
    Returns:
    
    true if empty, false if not
  - getLongInternal
```
public long getLongInternal(int index)
```
    Returns the internal (long-encoded) value stored in the column at the given row
    
    Specified by:
    
    getLongInternal in interface TemporalColumn<LocalDateTime>
    
    Specified by:
    
    getLongInternal in interface TemporalFilters<LocalDateTime>
  - getPackedDateTime
```
protected long getPackedDateTime(int index)
```
  - get
```
public LocalDateTime get(int index)
```
    Returns a value of the Object type stored in the column (e.g. a LocalDateTime) at the given row
    
    Specified by:
    
    get in interface Column<LocalDateTime>
    
    Specified by:
    
    get in interface TemporalColumn<LocalDateTime>
    
    Specified by:
    
    get in interface TemporalFilters<LocalDateTime>
  - rowComparator
```
public it.unimi.dsi.fastutil.ints.IntComparator rowComparator()
```
    Returns an IntComparator for sorting my rows
    
    Specified by:
    
    rowComparator in interface Column<LocalDateTime>
  - set
```
public DateTimeColumn set(Selection rowSelection,
                          LocalDateTime newValue)
```
    Conditionally update this column, replacing current values with newValue for all rows where the current value matches the selection criteria
    Example: myColumn.set(myColumn.valueIsMissing(), LocalDateTime.now()); // no more missing values
    
    Specified by:
    
    set in interface Column<LocalDateTime>
    
    Overrides:
    
    set in class AbstractColumn<DateTimeColumn,LocalDateTime>
  - countMissing
```
public int countMissing()
```
    Returns the count of missing values in this column
    
    Specified by:
    
    countMissing in interface Column<LocalDateTime>
    
    Returns:
    
    missing values as int
  - asEpochSecondArray
```
public long[] asEpochSecondArray()
```
    Returns an array where each entry is the difference, measured in seconds, between the LocalDateTime and midnight, January 1, 1970 UTC.
    If a value is missing, DateTimeColumnType.missingValueIndicator() is used
  - asEpochSecondArray
```
public long[] asEpochSecondArray(ZoneOffset offset)
```
    Returns the seconds from epoch for each value as an array based on the given offset
    If a value is missing, DateTimeColumnType.missingValueIndicator() is used
  - asEpochMillisArray
```
public long[] asEpochMillisArray()
```
    Returns an array where each entry is the difference, measured in milliseconds, between the LocalDateTime and midnight, January 1, 1970 UTC.
    If a missing value is encountered, DateTimeColumnType.missingValueIndicator() is inserted in the array
  - asEpochMillisArray
```
public long[] asEpochMillisArray(ZoneOffset offset)
```
    Returns an array where each entry is the difference, measured in milliseconds, between the LocalDateTime and midnight, January 1, 1970 UTC.
    If a missing value is encountered, DateTimeColumnType.missingValueIndicator() is inserted in the array
  - asInstantColumn
```
public InstantColumn asInstantColumn()
```
  - asInstantColumn
```
public InstantColumn asInstantColumn(ZoneId zone)
```
  - append
```
public DateTimeColumn append(Column<LocalDateTime> column)
```
    Appends all the values in the argument to the bottom of this column and return this column
    
    Specified by:
    
    append in interface Column<LocalDateTime>
  - append
```
public DateTimeColumn append(Column<LocalDateTime> column,
                             int row)
```
    Appends the value at the given row in the given column to the bottom of this column and return this column
    
    Specified by:
    
    append in interface Column<LocalDateTime>
  - set
```
public DateTimeColumn set(int row,
                          Column<LocalDateTime> column,
                          int sourceRow)
```
    Sets the value at row to the value at sourceRow in the given column and return this column
    
    Specified by:
    
    set in interface Column<LocalDateTime>
  - max
```
public LocalDateTime max()
```
  - appendMissing
```
public DateTimeColumn appendMissing()
```
    Appends a missing value appropriate to the column
    
    Specified by:
    
    appendMissing in interface Column<LocalDateTime>
  - min
```
public LocalDateTime min()
```
    Specified by:
    
    min in interface TemporalMapFunctions<LocalDateTime>
  - set
```
public DateTimeColumn set(int index,
                          long value)
```
  - set
```
public DateTimeColumn set(int index,
                          LocalDateTime value)
```
    Sets the value at index row to the given value and return this column
    
    Specified by:
    
    set in interface Column<LocalDateTime>
  - top
```
public List<LocalDateTime> top(int n)
```
    Returns the largest ("top") n values in the column
    
    Parameters:
    
    n - The maximum number of records to return. The actual number will be smaller if n is greater than the number of observations in the column
    
    Returns:
    
    A list, possibly empty, of the largest observations
  - bottom
```
public List<LocalDateTime> bottom(int n)
```
    Returns the smallest ("bottom") n values in the column
    
    Parameters:
    
    n - The maximum number of records to return. The actual number will be smaller if n is greater than the number of observations in the column
    
    Returns:
    
    A list, possibly empty, of the smallest n observations
  - longIterator
```
public it.unimi.dsi.fastutil.longs.LongIterator longIterator()
```
  - asSet
```
public Set<LocalDateTime> asSet()
```
    Description copied from interface: Column
    
    Returns a Set containing all the unique values in this column
    
    Specified by:
    
    asSet in interface Column<LocalDateTime>
  - byteSize
```
public int byteSize()
```
    Returns the width of a cell in this column, in bytes.
    
    Specified by:
    
    byteSize in interface Column<LocalDateTime>
    
    Returns:
    
    width in bytes
  - asBytes
```
public byte[] asBytes(int rowNumber)
```
    Returns the contents of the cell at rowNumber as a byte[]
    
    Specified by:
    
    asBytes in interface Column<LocalDateTime>
    
    Parameters:
    
    rowNumber - index of the row
    
    Returns:
    
    content as byte[]
  - getDouble
```
public double getDouble(int i)
```
  - asDoubleArray
```
public double[] asDoubleArray()
```
  - asDoubleColumn
```
public DoubleColumn asDoubleColumn()
```
  - iterator
```
public Iterator<LocalDateTime> iterator()
```
    Returns an iterator over elements of type T.
    
    Specified by:
    
    iterator in interface Iterable<LocalDateTime>
    
    Returns:
    
    an Iterator.
  - fillWith
```
public DateTimeColumn fillWith(Iterator<LocalDateTime> iterator)
```
    Specified by:
    
    fillWith in interface TemporalFillers<LocalDateTime,DateTimeColumn>
  - fillWith
```
public DateTimeColumn fillWith(Iterable<LocalDateTime> iterable)
```
    Specified by:
    
    fillWith in interface TemporalFillers<LocalDateTime,DateTimeColumn>
  - fillWith
```
public DateTimeColumn fillWith(Supplier<LocalDateTime> supplier)
```
    Specified by:
    
    fillWith in interface TemporalFillers<LocalDateTime,DateTimeColumn>
  - asObjectArray
```
public LocalDateTime[] asObjectArray()
```
    Returns an array of objects as appropriate for my type of column
    
    Specified by:
    
    asObjectArray in interface Column<LocalDateTime>
  - compare
```
public int compare(LocalDateTime o1,
                   LocalDateTime o2)
```
    Specified by:
    
    compare in interface Comparator<LocalDateTime>

Class DateTimeColumn

Field Summary

Fields inherited from class tech.tablesaw.columns.AbstractColumn

Method Summary

Methods inherited from class tech.tablesaw.columns.AbstractColumn

Methods inherited from interface tech.tablesaw.api.CategoricalColumn

Methods inherited from interface tech.tablesaw.columns.Column

Methods inherited from interface java.util.Comparator

Methods inherited from interface tech.tablesaw.columns.datetimes.DateTimeFilters

Methods inherited from interface tech.tablesaw.columns.datetimes.DateTimeMapFunctions

Methods inherited from interface java.lang.Iterable

Methods inherited from class java.lang.Object

Methods inherited from interface tech.tablesaw.columns.temporal.TemporalFilters

Methods inherited from interface tech.tablesaw.columns.temporal.TemporalMapFunctions

Field Detail

data

Method Detail

valueHash

equals

createInternal

create

create

create

create

plus

create

valueIsMissing

isMissing

subset

removeMissing

contains

setMissing

where

setPrintFormatter

setPrintFormatter

setPrintFormatter

lag

appendCell

appendCell

append

appendObj

size

appendInternal

getString

getUnformattedString

emptyCopy

emptyCopy

copy

clear

sortAscending

sortDescending

summary

countUnique

unique

isEmpty

getLongInternal

getPackedDateTime

get

rowComparator

set

countMissing

asEpochSecondArray

asEpochSecondArray

asEpochMillisArray

asEpochMillisArray

asInstantColumn

asInstantColumn

append

append

set

max

appendMissing

min

set

set

top

bottom

longIterator

asSet

byteSize