tech.tablesaw.io.csv

Class CsvReadOptions.Builder

java.lang.Object

tech.tablesaw.io.ReadOptions.Builder

tech.tablesaw.io.csv.CsvReadOptions.Builder

Enclosing class:

CsvReadOptions

public static class CsvReadOptions.Builder
extends ReadOptions.Builder

Field Summary

Fields inherited from class tech.tablesaw.io.ReadOptions.Builder

dateFormat, dateTimeFormat, file, inputStream, locale, minimizeColumnSizes, missingValueIndicator, reader, sample, tableName, timeFormat

Constructor Summary

Constructors

Constructor and Description
Builder(File file)
Builder(InputStream stream) This method may cause tablesaw to buffer the entire InputStream.
Builder(Reader reader) This method may cause tablesaw to buffer the entire InputStream.

Method Summary

Modifier and Type	Method and Description
CsvReadOptions	build()
CsvReadOptions.Builder	columnTypes(ColumnType[] columnTypes)
CsvReadOptions.Builder	commentPrefix(char commentPrefix)
CsvReadOptions.Builder	dateFormat(String dateFormat)
CsvReadOptions.Builder	dateTimeFormat(String dateTimeFormat)
CsvReadOptions.Builder	header(boolean header)
CsvReadOptions.Builder	lineEnding(String lineEnding)
CsvReadOptions.Builder	locale(Locale locale)
CsvReadOptions.Builder	maxNumberOfColumns(Integer maxNumberOfColumns) Defines maximal value of columns in csv file.
CsvReadOptions.Builder	minimizeColumnSizes(boolean minimize)
CsvReadOptions.Builder	missingValueIndicator(String missingValueIndicator)
CsvReadOptions.Builder	sample(boolean sample)
CsvReadOptions.Builder	separator(char separator)
CsvReadOptions.Builder	tableName(String tableName)
CsvReadOptions.Builder	timeFormat(String timeFormat)

Methods inherited from class java.lang.Object

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

Constructor Detail

Builder

public Builder(File file)

Builder

public Builder(Reader reader)

This method may cause tablesaw to buffer the entire InputStream.

If you have a large amount of data, you can do one of the following: 1. Use the method taking a File instead of a reader, or 2. Provide the array of column types as an option. If you provide the columnType array, we skip type detection and can avoid reading the entire file

Builder

public Builder(InputStream stream)

This method may cause tablesaw to buffer the entire InputStream.

If you have a large amount of data, you can do one of the following: 1. Use the method taking a File instead of a stream, or 2. Provide the array of column types as an option. If you provide the columnType array, we skip type detection and can avoid reading the entire file

Method Detail

tableName

public CsvReadOptions.Builder tableName(String tableName)

Overrides:

tableName in class ReadOptions.Builder

dateFormat

public CsvReadOptions.Builder dateFormat(String dateFormat)

Overrides:

dateFormat in class ReadOptions.Builder

timeFormat

public CsvReadOptions.Builder timeFormat(String timeFormat)

Overrides:

timeFormat in class ReadOptions.Builder

dateTimeFormat

public CsvReadOptions.Builder dateTimeFormat(String dateTimeFormat)

Overrides:

dateTimeFormat in class ReadOptions.Builder

header

public CsvReadOptions.Builder header(boolean header)

Overrides:

header in class ReadOptions.Builder

missingValueIndicator

public CsvReadOptions.Builder missingValueIndicator(String missingValueIndicator)

Overrides:

missingValueIndicator in class ReadOptions.Builder

separator

public CsvReadOptions.Builder separator(char separator)

lineEnding

public CsvReadOptions.Builder lineEnding(String lineEnding)

sample

public CsvReadOptions.Builder sample(boolean sample)

Overrides:

sample in class ReadOptions.Builder

minimizeColumnSizes

public CsvReadOptions.Builder minimizeColumnSizes(boolean minimize)

Overrides:

minimizeColumnSizes in class ReadOptions.Builder

locale

public CsvReadOptions.Builder locale(Locale locale)

Overrides:

locale in class ReadOptions.Builder

columnTypes

public CsvReadOptions.Builder columnTypes(ColumnType[] columnTypes)

maxNumberOfColumns

public CsvReadOptions.Builder maxNumberOfColumns(Integer maxNumberOfColumns)

Defines maximal value of columns in csv file.

Parameters:

maxNumberOfColumns - - must be positive integer. Default is 512. *

commentPrefix

public CsvReadOptions.Builder commentPrefix(char commentPrefix)

build

public CsvReadOptions build()

Overrides:

build in class ReadOptions.Builder