javatools.filehandlers
Class CSVLines

java.lang.Object
  javatools.datatypes.PeekIterator<java.util.List<java.lang.String>>
      javatools.filehandlers.CSVLines

All Implemented Interfaces:

java.io.Closeable, java.lang.Iterable<java.util.List<java.lang.String>>, java.util.Iterator<java.util.List<java.lang.String>>

public class CSVLines
extends PeekIterator<java.util.List<java.lang.String>>

This class is part of the Java Tools (see http://mpii.de/yago-naga/javatools). It is licensed under the Creative Commons Attribution License (see http://creativecommons.org/licenses/by/3.0) by the YAGO-NAGA team (see http://mpii.de/yago-naga). The class provides an iterator over the lines in a comma-separated file
Example:

      for(List columns : new CSVFile("c:\\autoexec.csv")) {
         System.out.println(columns);
      }
  

Recognizes column headers if introduced by '#'. Recognizes all types of encodings (see Char.decode()).

Nested Class Summary

Nested classes/interfaces inherited from class javatools.datatypes.PeekIterator

PeekIterator.ElementaryPeekIterator<T>, PeekIterator.SimplePeekIterator<T>

Field Summary

Fields inherited from class javatools.datatypes.PeekIterator

closed, initialized, next

Constructor Summary

CSVLines(java.io.File f)
Constructs a CSVReader

CSVLines(java.io.Reader reader)
Constructs a CSVReader

CSVLines(java.lang.String file)
Constructs a CSVReader

Method Summary

void	close() Closes the underlying resource
java.util.List<java.lang.String>	columnNames() returns the column names (or NULL)
static void	main(java.lang.String[] args) Test method
java.lang.Integer	numColumns() returns the number of columns (or NULL)
void	setSeparator(char s) Sets the separator (comma by default)

Methods inherited from class javatools.datatypes.PeekIterator

asList, asList, asSet, asSet, asSet, emptyIterator, hasNext, iterator, list, list, next, nextOrNull, numElements, numElements, peek, remove, toString, toString, toString

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

CSVLines

public CSVLines(java.io.File f)
         throws java.io.IOException

Constructs a CSVReader

Throws:

java.io.IOException

CSVLines

public CSVLines(java.io.Reader reader)
         throws java.io.IOException

Constructs a CSVReader

Throws:

java.io.IOException

CSVLines

public CSVLines(java.lang.String file)
         throws java.io.IOException

Constructs a CSVReader

Throws:

java.io.IOException

Method Detail

setSeparator

public void setSeparator(char s)

Sets the separator (comma by default)

columnNames

public java.util.List<java.lang.String> columnNames()

returns the column names (or NULL)

numColumns

public java.lang.Integer numColumns()

returns the number of columns (or NULL)

close

public void close()

Description copied from class: PeekIterator

Closes the underlying resource

Specified by:

close in interface java.io.Closeable

Overrides:

close in class PeekIterator<java.util.List<java.lang.String>>

main

public static void main(java.lang.String[] args)
                 throws java.lang.Exception

Test method

Throws:

java.lang.Exception