tech.tablesaw.columns.strings

Class AbstractStringColumn<C extends AbstractColumn<C,String>>

java.lang.Object

tech.tablesaw.columns.AbstractColumn<C,String>

tech.tablesaw.columns.strings.AbstractStringColumn<C>

All Implemented Interfaces:

Iterable<String>, Comparator<String>, CategoricalColumn<String>, Column<String>, StringFilters, StringMapFunctions, StringReduceUtils, FilterSpec<Selection>, StringFilterSpec<Selection>

Direct Known Subclasses:

StringColumn, TextColumn

public abstract class AbstractStringColumn<C extends AbstractColumn<C,String>>
extends AbstractColumn<C,String>
implements CategoricalColumn<String>, StringFilters, StringMapFunctions, StringReduceUtils

Abstract super class for Text like columns.

Field Summary

Fields inherited from class tech.tablesaw.columns.AbstractColumn

DEFAULT_ARRAY_SIZE

Constructor Summary

Constructors

Constructor and Description
AbstractStringColumn(ColumnType type, String name)

Method Summary

Modifier and Type	Method and Description
Column<String>	append(Column<String> column, int row)
List<String>	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.
int	compare(String o1, String o2)
StringColumnFormatter	getPrintFormatter()
String	getString(int row) Returns a string representation of the value at the given row.
String	getUnformattedString(int row)
Column<String>	set(int row, Column<String> column, int sourceRow)
void	setPrintFormatter(StringColumnFormatter formatter)
List<String>	top(int n) Returns the largest ("top") n values in the column

Methods inherited from class tech.tablesaw.columns.AbstractColumn

asStringColumn, emptyCopy, filter, first, inRange, last, map, max, min, name, sampleN, sampleX, set, set, setName, sorted, subset, toString, type

Methods inherited from class java.lang.Object

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

Methods inherited from interface tech.tablesaw.api.CategoricalColumn

countByCategory

Methods inherited from interface tech.tablesaw.columns.strings.StringFilters

containsString, endsWith, equalsIgnoreCase, equalsIgnoreCase, eval, eval, eval, eval, get, isAlpha, isAlphaNumeric, isEmptyString, isEqualTo, isEqualTo, isIn, isIn, isLongerThan, isLowerCase, isMissing, isNotEqualTo, isNotEqualTo, isNotIn, isNotIn, isNotMissing, isNumeric, isShorterThan, isUpperCase, lengthEquals, matchesRegex, startsWith, startsWith

Methods inherited from interface tech.tablesaw.columns.strings.StringMapFunctions

abbreviate, capitalize, commonPrefix, commonSuffix, concatenate, concatenate, countTokens, distance, format, join, length, lowerCase, padEnd, padStart, parseDouble, parseFloat, parseInt, repeat, replaceAll, replaceAll, replaceFirst, substring, substring, tokenizeAndRemoveDuplicates, tokenizeAndSort, tokenizeAndSort, tokens, trim, uniqueTokens, upperCase

Methods inherited from interface tech.tablesaw.columns.strings.StringReduceUtils

appendAll, appendAll

Methods inherited from interface tech.tablesaw.columns.Column

allMatch, anyMatch, append, append, appendCell, appendCell, appendMissing, appendObj, asBytes, asList, asObjectArray, asStringColumn, clear, columnWidth, contains, copy, count, count, countMissing, countUnique, emptyCopy, emptyCopy, filter, first, inRange, interpolate, isEmpty, isMissing, lag, last, lead, map, map, mapInto, max, max, min, min, name, noneMatch, print, reduce, reduce, removeMissing, rolling, rowComparator, sampleN, sampleX, set, set, set, set, set, setMissing, setMissingTo, setName, size, sortAscending, sortDescending, sorted, subset, summary, title, type, unique, where

Methods inherited from interface java.lang.Iterable

forEach, iterator, spliterator

Methods inherited from interface java.util.Comparator

comparing, comparing, comparingDouble, comparingInt, comparingLong, equals, naturalOrder, nullsFirst, nullsLast, reversed, reverseOrder, thenComparing, thenComparing, thenComparing, thenComparingDouble, thenComparingInt, thenComparingLong

Constructor Detail

AbstractStringColumn

public AbstractStringColumn(ColumnType type,
                            String name)

Method Detail

setPrintFormatter

public void setPrintFormatter(StringColumnFormatter formatter)

getPrintFormatter

public StringColumnFormatter getPrintFormatter()

getString

public String getString(int row)

Description copied from interface: Column

Returns a string representation of the value at the given row.

Specified by:

getString in interface Column<String>

Parameters:

row - The index of the row.

Returns:

value as String

getUnformattedString

public String getUnformattedString(int row)

Specified by:

getUnformattedString in interface Column<String>

top

public List<String> 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<String> 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

append

public Column<String> append(Column<String> column,
                             int row)

Specified by:

append in interface Column<String>

set

public Column<String> set(int row,
                          Column<String> column,
                          int sourceRow)

Specified by:

set in interface Column<String>

byteSize

public int byteSize()

Description copied from interface: Column

Returns the width of a cell in this column, in bytes.

Specified by:

byteSize in interface Column<String>

Returns:

width in bytes

compare

public int compare(String o1,
                   String o2)

Specified by:

compare in interface Comparator<String>