Package io.goobi.viewer.controller.sorting

Class AlphanumComparator<T>

java.lang.Object

io.goobi.viewer.controller.sorting.AlphanumComparator<T>

Type Parameters:

T - the type of elements to be compared

All Implemented Interfaces:

Serializable, Comparator<T>

public class AlphanumComparator<T>
extends Object
implements Comparator<T>, Serializable

Comparator implementing the Alphanum algorithm, which sorts strings containing numbers in natural numeric order rather than ASCII order, with locale-aware collation and optional translation support.

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
AlphanumComparator(boolean asc, Locale locale, ITranslator<T> translator)
AlphanumComparator(boolean asc, Locale locale, Function<T,String> stringifier)
AlphanumComparator(String field, Locale locale, boolean asc, Function<T,String> stringifier)
AlphanumComparator(String field, Locale locale, Function<T,String> stringifier)

Method Summary

Modifier and Type	Method	Description
int	compare(T o1, T o2)
static String	normalizeString(String s, String ignoreChars)

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Comparator

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

Constructor Details

AlphanumComparator

public AlphanumComparator(String field,
 Locale locale,
 Function<T,String> stringifier)

AlphanumComparator

public AlphanumComparator(String field,
 Locale locale,
 boolean asc,
 Function<T,String> stringifier)

AlphanumComparator

public AlphanumComparator(boolean asc,
 Locale locale,
 ITranslator<T> translator)

AlphanumComparator

public AlphanumComparator(boolean asc,
 Locale locale,
 Function<T,String> stringifier)

Method Details

compare

public int compare(T o1,
 T o2)

Specified by:

compare in interface Comparator<T>

Parameters:

o1 - first object to compare

o2 - second object to compare

Returns:

a negative integer, zero, or a positive integer as the first argument is less than, equal to, or greater than the second

normalizeString

public static String normalizeString(String s,
 String ignoreChars)

Parameters:

s - String to normalize

ignoreChars - Optional string containing leading characters to remove from the string

Returns:

Cleaned-up string for comparison