Package com.helger.commons.compare

Interface IComparator<DATATYPE>

Type Parameters:

DATATYPE - The data type to be compared

All Superinterfaces:

Comparator<DATATYPE>, Serializable

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@NotThreadSafe
@FunctionalInterface
public interface IComparator<DATATYPE>
extends Comparator<DATATYPE>, Serializable

A special interface that combines Comparator and Serializable for easier reuse since Comparators should be Serializable.

Author:

Philip Helger

Method Summary

Static Methods

Modifier and Type	Method	Description
static Comparator<String>	getComparatorCollating(Collator aCollator)
static <T> Comparator<T>	getComparatorCollating(Function<? super T,String> aMapper, Collator aCollator)
static <T> Comparator<T>	getComparatorCollating(Function<? super T,String> aMapper, Locale aSortLocale)
static Comparator<String>	getComparatorCollating(Locale aSortLocale)
static IComparator<String>	getComparatorStringIgnoreCase()
static IComparator<String>	getComparatorStringIgnoreCase(boolean bNullValuesComeFirst)
static IComparator<String>	getComparatorStringLongestFirst()
static IComparator<String>	getComparatorStringLongestFirst(boolean bNullValuesComeFirst)
static IComparator<String>	getComparatorStringShortestFirst()
static IComparator<String>	getComparatorStringShortestFirst(boolean bNullValuesComeFirst)

Methods inherited from interface java.util.Comparator

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

Method Detail

getComparatorCollating

@Nonnull
static Comparator<String> getComparatorCollating(@Nullable
                                                 Locale aSortLocale)

getComparatorCollating

@Nonnull
static Comparator<String> getComparatorCollating(@Nonnull
                                                 Collator aCollator)

getComparatorCollating

@Nonnull
static <T> Comparator<T> getComparatorCollating(@Nonnull
                                                Function<? super T,String> aMapper,
                                                @Nullable
                                                Locale aSortLocale)

getComparatorCollating

@Nonnull
static <T> Comparator<T> getComparatorCollating(@Nonnull
                                                Function<? super T,String> aMapper,
                                                @Nonnull
                                                Collator aCollator)

getComparatorStringLongestFirst

@Nonnull
static IComparator<String> getComparatorStringLongestFirst()

getComparatorStringLongestFirst

@Nonnull
static IComparator<String> getComparatorStringLongestFirst(boolean bNullValuesComeFirst)

getComparatorStringShortestFirst

@Nonnull
static IComparator<String> getComparatorStringShortestFirst()

getComparatorStringShortestFirst

@Nonnull
static IComparator<String> getComparatorStringShortestFirst(boolean bNullValuesComeFirst)

getComparatorStringIgnoreCase

@Nonnull
static IComparator<String> getComparatorStringIgnoreCase()

getComparatorStringIgnoreCase

@Nonnull
static IComparator<String> getComparatorStringIgnoreCase(boolean bNullValuesComeFirst)