org.gbif.utils.text

Class LineComparator

java.lang.Object

org.gbif.utils.text.LineComparator

All Implemented Interfaces:

Comparator<String>

public class LineComparator
extends Object
implements Comparator<String>

A comparator for delimited lines that compares the content of a given column number for all rows. This allows to sort for example tab delimited files by any column and not only the first one.

If no explicit comparator is given a string comparison is done for the actual column content.

Constructor Summary

Constructors

Constructor and Description
LineComparator(int column, String columnDelimiter)
LineComparator(int column, String columnDelimiter, Character quoteChar)
LineComparator(int column, String columnDelimiter, Character quoteChar, Comparator<String> columnComparator)
LineComparator(int column, String columnDelimiter, Comparator<String> columnComparator)

Method Summary

Modifier and Type	Method and Description
int	compare(String o1, String o2)
Comparator<String>	getColumnComparator()

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Comparator

comparing, comparing, comparingDouble, comparingInt, comparingLong, equals, naturalOrder, nullsFirst, nullsLast, reversed, reverseOrder, thenComparing, thenComparing, thenComparing, thenComparingDouble, thenComparingInt, thenComparingLong

Constructor Detail

LineComparator

public LineComparator(int column,
                      String columnDelimiter)

LineComparator

public LineComparator(int column,
                      String columnDelimiter,
                      Character quoteChar)

LineComparator

public LineComparator(int column,
                      String columnDelimiter,
                      Character quoteChar,
                      Comparator<String> columnComparator)

LineComparator

public LineComparator(int column,
                      String columnDelimiter,
                      Comparator<String> columnComparator)

Method Detail

compare

public int compare(String o1,
                   String o2)

Specified by:

compare in interface Comparator<String>

getColumnComparator

public Comparator<String> getColumnComparator()