cn.hutool.core.comparator

Class PropertyComparator<T>

java.lang.Object

cn.hutool.core.comparator.NullComparator<T>

cn.hutool.core.comparator.FuncComparator<T>

cn.hutool.core.comparator.PropertyComparator<T>

Type Parameters:

T - 被比较的Bean

All Implemented Interfaces:

Serializable, Comparator<T>

public class PropertyComparator<T>
extends FuncComparator<T>

Bean属性排序器
支持读取Bean多层次下的属性

Author:

Looly

See Also:

Serialized Form

Field Summary

Fields inherited from class cn.hutool.core.comparator.NullComparator

comparator, nullGreater

Constructor Summary

Constructors

Constructor and Description
PropertyComparator(String property) 构造
PropertyComparator(String property, boolean isNullGreater) 构造
PropertyComparator(String property, boolean compareSelf, boolean isNullGreater) 构造

Method Summary

Methods inherited from class cn.hutool.core.comparator.NullComparator

compare, doCompare, thenComparing

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

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

Constructor Detail

PropertyComparator

public PropertyComparator(String property)

构造

Parameters:

property - 属性名

PropertyComparator

public PropertyComparator(String property,
                          boolean isNullGreater)

构造

Parameters:

property - 属性名

isNullGreater - null值是否排在后（从小到大排序）

PropertyComparator

public PropertyComparator(String property,
                          boolean compareSelf,
                          boolean isNullGreater)

构造

Parameters:

property - 属性名

compareSelf - 在字段值相同情况下，是否比较对象本身。 如果此项为false，字段值比较后为0会导致对象被认为相同，可能导致被去重。

isNullGreater - null值是否排在后（从小到大排序）

Since:

5.8.28