de.unknownreality.dataframe.csv

Class CSVWriter

java.lang.Object

de.unknownreality.dataframe.csv.CSVWriter

All Implemented Interfaces:

DataWriter

public class CSVWriter
extends Object
implements DataWriter

Created by Alex on 14.03.2016.

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	CSVWriter(char separator, boolean containsHeader, String headerPrefix, boolean gzip) Creates a csv writer

Method Summary

Modifier and Type	Method and Description
Map<String,String>	getAttributes() Returns the attributes map used by CSVReaderBuilder.
static void	print(DataContainer<?,?> dataContainer, char separator, boolean containsHeader, String headerPrefix) Prints a csv file to System.out
void	print(DataContainer<? extends Header,? extends Row> dataContainer) Prints a data container to System.out
void	print(PrintStream printWriter, DataContainer<? extends Header,? extends Row> dataContainer) Prints a data container to a PrintStream
static void	write(File file, DataContainer<?,?> dataContainer, char separator, boolean containsHeader, String headerPrefix, boolean gzip) Writes a csv file
void	write(File file, DataContainer<? extends Header,? extends Row> dataContainer) Writes a data container into a file
static void	write(File file, DataContainer dataContainer, char separator) Writes a csv file
static void	write(File file, DataContainer dataContainer, char separator, boolean containsHeader, String headerPrefix) Writes a csv file
void	write(File file, DataFrame dataFrame, boolean writeMetaFile) Writes a DataFrame into a file and if specified also writes a meta file

Methods inherited from class java.lang.Object

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

Constructor Detail

CSVWriter

protected CSVWriter(char separator,
                    boolean containsHeader,
                    String headerPrefix,
                    boolean gzip)

Creates a csv writer

Parameters:

separator - csv column separator char

containsHeader - write csv header line

headerPrefix - csv header line prefix

gzip - use gzip

Method Detail

write

public static void write(File file,
                         DataContainer dataContainer,
                         char separator)

Writes a csv file

Parameters:

file - target file

dataContainer - data container

separator - separator char

write

public static void write(File file,
                         DataContainer dataContainer,
                         char separator,
                         boolean containsHeader,
                         String headerPrefix)

Writes a csv file

Parameters:

file - target file

dataContainer - data container

separator - separator char

containsHeader - write header line

headerPrefix - header line prefix

write

public static void write(File file,
                         DataContainer<?,?> dataContainer,
                         char separator,
                         boolean containsHeader,
                         String headerPrefix,
                         boolean gzip)

Writes a csv file

Parameters:

file - target file

dataContainer - data container

separator - separator char

containsHeader - write header line

headerPrefix - header line prefix

gzip - use gzip

print

public static void print(DataContainer<?,?> dataContainer,
                         char separator,
                         boolean containsHeader,
                         String headerPrefix)

Prints a csv file to System.out

Parameters:

dataContainer - data container

separator - separator char

containsHeader - write header line

headerPrefix - header line prefix

write

public void write(File file,
                  DataContainer<? extends Header,? extends Row> dataContainer)

Description copied from interface: DataWriter

Writes a data container into a file

Specified by:

write in interface DataWriter

Parameters:

file - target file

dataContainer - container to write

write

public void write(File file,
                  DataFrame dataFrame,
                  boolean writeMetaFile)

Description copied from interface: DataWriter

Writes a DataFrame into a file and if specified also writes a meta file

Specified by:

write in interface DataWriter

Parameters:

file - target file

dataFrame - data frame to write

writeMetaFile - write a meta file parameter

print

public void print(DataContainer<? extends Header,? extends Row> dataContainer)

Description copied from interface: DataWriter

Prints a data container to System.out

Specified by:

print in interface DataWriter

Parameters:

dataContainer - data container to print

print

public void print(PrintStream printWriter,
                  DataContainer<? extends Header,? extends Row> dataContainer)

Description copied from interface: DataWriter

Prints a data container to a PrintStream

Specified by:

print in interface DataWriter

Parameters:

printWriter - target stream

dataContainer - data container to print

getAttributes

public Map<String,String> getAttributes()

Returns the attributes map used by CSVReaderBuilder.

Specified by:

getAttributes in interface DataWriter

Returns:

attributes map

See Also:

CSVReaderBuilder.loadAttributes(Map)