Package org.h2.value

Class CompareModeDefault

java.lang.Object

org.h2.value.CompareMode

org.h2.value.CompareModeDefault

All Implemented Interfaces:

java.util.Comparator<Value>

public class CompareModeDefault
extends CompareMode

The default implementation of CompareMode. It uses java.text.Collator.

Field Summary

Fields

Modifier and Type	Field	Description
private CompareModeDefault	caseInsensitive
private SmallLRUCache<java.lang.String,java.text.CollationKey>	collationKeys
private java.text.Collator	collator

Fields inherited from class org.h2.value.CompareMode

CHARSET, DEFAULT, ICU4J, OFF

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	CompareModeDefault(java.lang.String name, int strength)

Method Summary

Modifier and Type	Method	Description
int	compareString(java.lang.String a, java.lang.String b, boolean ignoreCase)	Compare two strings.
boolean	equalsChars(java.lang.String a, int ai, java.lang.String b, int bi, boolean ignoreCase)	Compare two characters in a string.
private java.text.CollationKey	getKey(java.lang.String a)

Methods inherited from class org.h2.value.CompareMode

compare, compareLocaleNames, equals, getCollationLocales, getCollator, getInstance, getName, getName, getStrength, hashCode

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Comparator

reversed, thenComparing, thenComparing, thenComparing, thenComparingDouble, thenComparingInt, thenComparingLong

Field Detail

collator

private final java.text.Collator collator

collationKeys

private final SmallLRUCache<java.lang.String,java.text.CollationKey> collationKeys

caseInsensitive

private volatile CompareModeDefault caseInsensitive

Constructor Detail

CompareModeDefault

protected CompareModeDefault(java.lang.String name,
                             int strength)

Method Detail

compareString

public int compareString(java.lang.String a,
                         java.lang.String b,
                         boolean ignoreCase)

Description copied from class: CompareMode

Compare two strings.

Overrides:

compareString in class CompareMode

Parameters:

a - the first string

b - the second string

ignoreCase - true if a case-insensitive comparison should be made

Returns:

-1 if the first string is 'smaller', 1 if the second string is smaller, and 0 if they are equal

equalsChars

public boolean equalsChars(java.lang.String a,
                           int ai,
                           java.lang.String b,
                           int bi,
                           boolean ignoreCase)

Description copied from class: CompareMode

Compare two characters in a string.

Overrides:

equalsChars in class CompareMode

Parameters:

a - the first string

ai - the character index in the first string

b - the second string

bi - the character index in the second string

ignoreCase - true if a case-insensitive comparison should be made

Returns:

true if the characters are equals

getKey

private java.text.CollationKey getKey(java.lang.String a)