cn.hutool.core.comparator

Class FieldComparator<T>

java.lang.Object

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

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

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

Type Parameters:

T - 被比较的Bean

All Implemented Interfaces:

Serializable, Comparator<T>

public class FieldComparator<T>
extends FuncComparator<T>

Bean字段排序器
参阅feilong-core中的PropertyComparator

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
FieldComparator(boolean nullGreater, boolean compareSelf, Field field) 构造
FieldComparator(Class<T> beanClass, String fieldName) 构造
FieldComparator(Field field) 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

FieldComparator

public FieldComparator(Class<T> beanClass,
                       String fieldName)

构造

Parameters:

beanClass - Bean类

fieldName - 字段名

FieldComparator

public FieldComparator(Field field)

构造

Parameters:

field - 字段

FieldComparator

public FieldComparator(boolean nullGreater,
                       boolean compareSelf,
                       Field field)

构造

Parameters:

nullGreater - 是否null在后

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。

field - 字段