org.springframework.core.convert.converter

类 ConvertingComparator<S,T>

java.lang.Object

org.springframework.core.convert.converter.ConvertingComparator<S,T>

类型参数:

S - the source type

T - the target type

所有已实现的接口:

Comparator<S>

public class ConvertingComparator<S,T>
extends Object
implements Comparator<S>

A Comparator that converts values before they are compared. The specified Converter will be used to convert each value before it passed to the underlying Comparator.

从以下版本开始:

3.2

作者:

Phillip Webb

构造器概要

构造器

构造器和说明
ConvertingComparator(Comparator<T> comparator, ConversionService conversionService, Class<? extends T> targetType) Create a new ConvertingComparator instance.
ConvertingComparator(Comparator<T> comparator, Converter<S,T> converter) Create a new ConvertingComparator instance.
ConvertingComparator(Converter<S,T> converter) Create a new ConvertingComparator instance.

方法概要

限定符和类型	方法和说明
int	compare(S o1, S o2)
static <K,V> ConvertingComparator<Map.Entry<K,V>,K>	mapEntryKeys(Comparator<K> comparator) Create a new ConvertingComparator that compares map * entries based on their keys.
static <K,V> ConvertingComparator<Map.Entry<K,V>,V>	mapEntryValues(Comparator<V> comparator) Create a new ConvertingComparator that compares map entries based on their values.

从类继承的方法 java.lang.Object

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

从接口继承的方法 java.util.Comparator

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

构造器详细资料

ConvertingComparator

public ConvertingComparator(Converter<S,T> converter)

Create a new ConvertingComparator instance.

参数:

converter - the converter

ConvertingComparator

public ConvertingComparator(Comparator<T> comparator,
                            Converter<S,T> converter)

Create a new ConvertingComparator instance.

参数:

comparator - the underlying comparator used to compare the converted values

converter - the converter

ConvertingComparator

public ConvertingComparator(Comparator<T> comparator,
                            ConversionService conversionService,
                            Class<? extends T> targetType)

Create a new ConvertingComparator instance.

参数:

comparator - the underlying comparator

conversionService - the conversion service

targetType - the target type

方法详细资料

compare

public int compare(S o1,
                   S o2)

指定者:

compare 在接口中 Comparator<S>

mapEntryKeys

public static <K,V> ConvertingComparator<Map.Entry<K,V>,K> mapEntryKeys(Comparator<K> comparator)

Create a new ConvertingComparator that compares map * entries based on their keys.

参数:

comparator - the underlying comparator used to compare keys

返回:

a new ConvertingComparator instance

mapEntryValues

public static <K,V> ConvertingComparator<Map.Entry<K,V>,V> mapEntryValues(Comparator<V> comparator)

Create a new ConvertingComparator that compares map entries based on their values.

参数:

comparator - the underlying comparator used to compare values

返回:

a new ConvertingComparator instance