Package tech.tablesaw.columns

Class AbstractColumnParser<T>

java.lang.Object

tech.tablesaw.columns.AbstractColumnParser<T>

Type Parameters:

T - The Class of object to be inserted: String for StringColumn, LocalDate for DateColumn, etc.

Direct Known Subclasses:

BooleanParser, DateParser, DateTimeParser, DoubleParser, FloatParser, InstantParser, IntParser, LongParser, ShortParser, StringParser, TimeParser

public abstract class AbstractColumnParser<T>
extends Object

A parser for turning strings into objects that can be inserted into a column

It serves two purposes, to determine if a string can be parsed into the desired object type, and to actually parse the string.

Implementations may take additional parameters such as a locale or DateTimeFormatter.

Field Summary

Fields

Modifier and Type	Field	Description
protected List<String>	missingValueStrings

Constructor Summary

Constructors

Constructor	Description
AbstractColumnParser(ColumnType columnType)

Method Summary

Modifier and Type	Method	Description
abstract boolean	canParse(String s)
ColumnType	columnType()
boolean	isMissing(String s)
abstract T	parse(String s)
byte	parseByte(String s)
double	parseDouble(String s)
float	parseFloat(String s)
int	parseInt(String s)
long	parseLong(String s)
short	parseShort(String s)
protected static String	remove(String str, char remove)
void	setMissingValueStrings(List<String> missingValueStrings)

Methods inherited from class java.lang.Object

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

Field Detail

missingValueStrings

protected List<String> missingValueStrings

Constructor Detail

AbstractColumnParser

public AbstractColumnParser(ColumnType columnType)

Method Detail

canParse

public abstract boolean canParse(String s)

parse

public abstract T parse(String s)

columnType

public ColumnType columnType()

isMissing

public boolean isMissing(String s)

parseByte

public byte parseByte(String s)

parseInt

public int parseInt(String s)

parseShort

public short parseShort(String s)

parseLong

public long parseLong(String s)

parseDouble

public double parseDouble(String s)

parseFloat

public float parseFloat(String s)

remove

protected static String remove(String str,
                               char remove)

setMissingValueStrings

public void setMissingValueStrings(List<String> missingValueStrings)