tech.tablesaw.io

Class ReadOptions

java.lang.Object

tech.tablesaw.io.ReadOptions

Direct Known Subclasses:

CsvReadOptions, FixedWidthReadOptions

public class ReadOptions
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	ReadOptions.Builder

Field Summary

Fields

Modifier and Type	Field and Description
protected String	dateFormat
protected String	dateTimeFormat
static List<ColumnType>	EXTENDED_TYPE_ARRAY An extended list of types that are used if minimizeColumnSizes is true.
protected File	file
protected boolean	header
protected InputStream	inputStream
protected Locale	locale
protected boolean	minimizeColumnSizes
protected String	missingValueIndicator
protected Reader	reader
protected boolean	sample
protected String	tableName
protected String	timeFormat

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	ReadOptions(ReadOptions.Builder builder)

Method Summary

Modifier and Type	Method and Description
static ReadOptions.Builder	builder(File file)
static ReadOptions.Builder	builder(InputStream stream, String tableName) This method may cause tablesaw to buffer the entire InputStream.
static ReadOptions.Builder	builder(Reader reader, String tableName) This method may cause tablesaw to buffer the entire InputStream.
static ReadOptions.Builder	builder(String fileName)
DateTimeFormatter	dateFormatter()
DateTimeFormatter	dateTimeFormatter()
File	file()
boolean	header()
InputStream	inputStream()
Locale	locale()
boolean	minimizeColumnSizes()
String	missingValueIndicator()
Reader	reader()
boolean	sample()
String	tableName()
DateTimeFormatter	timeFormatter()

Methods inherited from class java.lang.Object

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

Field Detail

EXTENDED_TYPE_ARRAY

public static final List<ColumnType> EXTENDED_TYPE_ARRAY

An extended list of types that are used if minimizeColumnSizes is true. By including extra types like Short the resulting table size is reduced at the cost of some additional complexity for the programmer if, for example, they will subsequently modify the data in a way that exceeds the range of the type.

file

protected final File file

reader

protected final Reader reader

inputStream

protected final InputStream inputStream

tableName

protected final String tableName

sample

protected final boolean sample

dateFormat

protected final String dateFormat

dateTimeFormat

protected final String dateTimeFormat

timeFormat

protected final String timeFormat

locale

protected final Locale locale

missingValueIndicator

protected final String missingValueIndicator

minimizeColumnSizes

protected final boolean minimizeColumnSizes

header

protected final boolean header

Constructor Detail

ReadOptions

protected ReadOptions(ReadOptions.Builder builder)

Method Detail

builder

public static ReadOptions.Builder builder(File file)

builder

public static ReadOptions.Builder builder(String fileName)

builder

public static ReadOptions.Builder builder(InputStream stream,
                                          String tableName)

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

builder

public static ReadOptions.Builder builder(Reader reader,
                                          String tableName)

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

file

public File file()

reader

public Reader reader()

inputStream

public InputStream inputStream()

tableName

public String tableName()

sample

public boolean sample()

minimizeColumnSizes

public boolean minimizeColumnSizes()

missingValueIndicator

public String missingValueIndicator()

locale

public Locale locale()

header

public boolean header()

dateTimeFormatter

public DateTimeFormatter dateTimeFormatter()

timeFormatter

public DateTimeFormatter timeFormatter()

dateFormatter

public DateTimeFormatter dateFormatter()