cat.inspiracio.io

Class CSVReader

java.lang.Object

cat.inspiracio.io.CSVReader

public class CSVReader
extends Object

Reads CSV records from a java.io.Reader, one at a time. Can be used to read the records and process them without having to read all of them into memory (streaming). Example:

 CSVReader csv=new CSVReader(reader)
 Object[] line=csv.readln()
 while(line!=null){
  for(Object field : line)
    process(field)
  processEndOfLine()
  line=csv.readln()
 }
 

When interpreting numbers, Locale.US is assumed.

Constructor Summary

Constructors

Constructor and Description
CSVReader(Reader reader)

Method Summary

Modifier and Type	Method and Description
int	getCount() How many records have been read?
Object[]	readln() Reads (parses) one more record from the CSV file.
void	setDelimiter(char delimiter) Sets the field delimiter.
void	setSeparator(char separator) Sets the field separator.

Methods inherited from class java.lang.Object

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

Constructor Detail

CSVReader

public CSVReader(Reader reader)

Parameters:

reader - An open reader of a CSV file

Method Detail

setDelimiter

public void setDelimiter(char delimiter)

Sets the field delimiter. Accepts '"' and '\''.

setSeparator

public void setSeparator(char separator)

Sets the field separator. Accepts ',' and ';' and ':' and TAB and SPACE.

getCount

public int getCount()

How many records have been read?

readln

public Object[] readln()
                throws IOException

Reads (parses) one more record from the CSV file. If there is nothing more, returns null to signal end of input. The object returned are Strings, Numbers, or Booleans. Should be called when the position is just before a record or at the end of input. Leaves the position just before the next record or at the end of input.

Returns:

array of the fields, or null if there are no more records The array contains: String, Number, Boolean, null.

Throws:

IOException