Package tech.tablesaw.io

Class FileReader

java.lang.Object

tech.tablesaw.io.FileReader

Direct Known Subclasses:

CsvReader, FixedWidthReader

public abstract class FileReader
extends Object

Constructor Summary

Constructors

Constructor	Description
FileReader()

Method Summary

Modifier and Type	Method	Description
String[]	getColumnNames(ReadOptions options, ReadOptions.ColumnTypeReadOptions columnTypeReadOptions, com.univocity.parsers.common.AbstractParser<?> parser)	Returns the column names for each column in the source.
ColumnType[]	getColumnTypes(Reader reader, ReadOptions options, int linesToSkip, com.univocity.parsers.common.AbstractParser<?> parser, String[] columnNames)	Returns an array containing the inferred columnTypes for the file being read, as calculated by the ColumnType inference logic.
protected String	getTypeString(Table structure)
protected Table	parseRows(ReadOptions options, boolean headerOnly, Reader reader, ReadOptions.ColumnTypeReadOptions columnTypeReadOptions, com.univocity.parsers.common.AbstractParser<?> parser)
protected Table	parseRows(ReadOptions options, boolean headerOnly, Reader reader, ReadOptions.ColumnTypeReadOptions columnTypeReadOptions, com.univocity.parsers.common.AbstractParser<?> parser, int sampleSize)

Methods inherited from class java.lang.Object

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

Constructor Details

FileReader

public FileReader()

Method Details

getColumnTypes

public ColumnType[] getColumnTypes(Reader reader,
 ReadOptions options,
 int linesToSkip,
 com.univocity.parsers.common.AbstractParser<?> parser,
 String[] columnNames)

Returns an array containing the inferred columnTypes for the file being read, as calculated by the ColumnType inference logic. These types may not be correct.

getColumnNames

public String[] getColumnNames(ReadOptions options,
 ReadOptions.ColumnTypeReadOptions columnTypeReadOptions,
 com.univocity.parsers.common.AbstractParser<?> parser)

Returns the column names for each column in the source.

parseRows

protected Table parseRows(ReadOptions options,
 boolean headerOnly,
 Reader reader,
 ReadOptions.ColumnTypeReadOptions columnTypeReadOptions,
 com.univocity.parsers.common.AbstractParser<?> parser)

parseRows

protected Table parseRows(ReadOptions options,
 boolean headerOnly,
 Reader reader,
 ReadOptions.ColumnTypeReadOptions columnTypeReadOptions,
 com.univocity.parsers.common.AbstractParser<?> parser,
 int sampleSize)

getTypeString

protected String getTypeString(Table structure)