java.lang.Object
- org.springframework.core.convert.converter.ConvertingComparator<S,T>

Type Parameters:
S - the source type
T - the target type
All Implemented Interfaces:
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.
Since:
3.2
Author:
Phillip Webb

Constructor Summary

Constructors
Constructor	Description
`ConvertingComparator(Comparator<T> comparator, ConversionService conversionService, Class<? extends T> targetType)`	Create a new `ComparableComparator` instance.
`ConvertingComparator(Comparator<T> comparator, Converter<S,T> converter)`	Create a new `ConvertingComparator` instance.
`ConvertingComparator(Converter<S,T> converter)`	Create a new `ConvertingComparator` instance.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`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`.

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 Detail
  - ConvertingComparator
```
public ConvertingComparator(Converter<S,T> converter)
```
    Create a new ConvertingComparator instance.
    Parameters:
    converter - the converter
  - ConvertingComparator
```
public ConvertingComparator(Comparator<T> comparator,
                            Converter<S,T> converter)
```
    Create a new ConvertingComparator instance.
    Parameters:
    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 ComparableComparator instance.
    Parameters:
    comparator - the underlying comparator
    conversionService - the conversion service
    targetType - the target type
- Method Detail
  - compare
```
public int compare(S o1,
                   S o2)
```
    Specified by:
    compare in interface 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.
    Parameters:
    comparator - the underlying comparator used to compare keys
    Returns:
    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.
    Parameters:
    comparator - the underlying comparator used to compare values
    Returns:
    a new ConvertingComparator instance

Class ConvertingComparator<S,​T>

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Methods inherited from interface java.util.Comparator

Constructor Detail

ConvertingComparator

ConvertingComparator

ConvertingComparator

Method Detail

compare

mapEntryKeys

mapEntryValues

Class ConvertingComparator<S,T>