Package org.carrot2.util

Class CharArrayComparators

java.lang.Object

org.carrot2.util.CharArrayComparators

public class CharArrayComparators
extends Object

A set of specific comparators for char [] arrays.

Field Summary

Fields

Modifier and Type	Field	Description
static Comparator<char[]>	CASE_INSENSITIVE_CHAR_ARRAY_COMPARATOR	A case-insensitive lexicographic comparator.
static Comparator<char[]>	FAST_CHAR_ARRAY_COMPARATOR	A case-sensitive lexicographic comparator.
static Comparator<char[]>	NORMALIZING_CHAR_ARRAY_COMPARATOR	A comparator that groups different strings into different buckets (case-insensitive) and strings within these buckets (case-sensitive).

Method Summary

Methods inherited from class java.lang.Object

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

Field Details

CASE_INSENSITIVE_CHAR_ARRAY_COMPARATOR

public static final Comparator<char[]> CASE_INSENSITIVE_CHAR_ARRAY_COMPARATOR

A case-insensitive lexicographic comparator.

FAST_CHAR_ARRAY_COMPARATOR

public static final Comparator<char[]> FAST_CHAR_ARRAY_COMPARATOR

A case-sensitive lexicographic comparator.

NORMALIZING_CHAR_ARRAY_COMPARATOR

public static final Comparator<char[]> NORMALIZING_CHAR_ARRAY_COMPARATOR

A comparator that groups different strings into different buckets (case-insensitive) and strings within these buckets (case-sensitive). The comparator that applies the following rules in the following order:

1. A null string is greater than a non-null one
2. A longer string is greater
3. Strings are first compared in case-insensitive mode
4. Finally, strings are compared in case-sensitive mode

This comparator does not provide a lexicographic order, which makes it much faster, but not suitable for general purpose sorting.