Package org.supercsv.encoder

Class SelectiveCsvEncoder

java.lang.Object

org.supercsv.encoder.DefaultCsvEncoder

org.supercsv.encoder.SelectiveCsvEncoder

All Implemented Interfaces:

CsvEncoder

public class SelectiveCsvEncoder
extends DefaultCsvEncoder

A selective CsvEncoder implementation - only the desired column numbers (if any) are encoded. Use with caution - disabling encoding may increase performance but at the risk of invalid CSV.

Since:

2.1.0

Author:

James Bassett

Constructor Summary

Constructors

Constructor	Description
SelectiveCsvEncoder(boolean[] columnsToEncode)	Constructs a new SelectiveCsvEncoder that encodes columns if the element representing that column in the supplied array is true.
SelectiveCsvEncoder(int... columnsToEncode)	Constructs a new SelectiveCsvEncoder that encodes columns by column number.

Method Summary

Modifier and Type	Method	Description
String	encode(String input, CsvContext context, CsvPreference preference)	Encodes a String to be written to a CSV file.

Methods inherited from class java.lang.Object

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

Constructor Detail

SelectiveCsvEncoder

public SelectiveCsvEncoder(int... columnsToEncode)

Constructs a new SelectiveCsvEncoder that encodes columns by column number. If no column numbers are supplied (i.e. no parameters) then no columns will be encoded.

Parameters:

columnsToEncode - the column numbers to encode

SelectiveCsvEncoder

public SelectiveCsvEncoder(boolean[] columnsToEncode)

Constructs a new SelectiveCsvEncoder that encodes columns if the element representing that column in the supplied array is true.

Parameters:

columnsToEncode - boolean array representing columns to encode (true indicates a column should be encoded).

Method Detail

encode

public String encode(String input,
                     CsvContext context,
                     CsvPreference preference)

Encodes a String to be written to a CSV file. The encoder should honour all CSV preferences including updating the current lineNumber (in the CSV context - it will be updated in the calling CsvWriter after encoding has completed) as line terminators are encountered in the String to be escaped (converting all 3 variations of line terminators to the end of line symbols specified in the preferences). The CsvContext can also be used to encode based on the current context (e.g. you may want to always put quotes around a particular column).

Specified by:

encode in interface CsvEncoder

Overrides:

encode in class DefaultCsvEncoder

Parameters:

input - the String to be encoded

context - the context

preference - the CSV preferences

Returns:

the encoded CSV