org.aoju.bus.core.compare

Class FuncCompare<T>

java.lang.Object

org.aoju.bus.core.compare.NullCompare<T>

org.aoju.bus.core.compare.FuncCompare<T>

Type Parameters:

T - 被比较的对象

All Implemented Interfaces:

Serializable, Comparator<T>

Direct Known Subclasses:

FieldCompare, PropertyCompare

public class FuncCompare<T>
extends NullCompare<T>

指定函数排序器

Since:

JDK 1.8+

Version:

6.3.0

Author:

Kimi Liu

See Also:

Serialized Form

Field Summary

Fields inherited from class org.aoju.bus.core.compare.NullCompare

comparator, nullGreater

Constructor Summary

Constructors

Constructor and Description
FuncCompare(boolean nullGreater, Function<T,Comparable<?>> func) 构造

Method Summary

Modifier and Type	Method and Description
protected int	doCompare(T a, T b) 不检查null的比较方法 用户可自行重写此方法自定义比较方式

Methods inherited from class org.aoju.bus.core.compare.NullCompare

compare, reversed, 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, reverseOrder, thenComparing, thenComparing, thenComparingDouble, thenComparingInt, thenComparingLong

Constructor Detail

FuncCompare

public FuncCompare(boolean nullGreater,
                   Function<T,Comparable<?>> func)

构造

Parameters:

nullGreater - 是否null在后

func - 比较项获取函数

Method Detail

doCompare

protected int doCompare(T a,
                        T b)

Description copied from class: NullCompare

不检查null的比较方法 用户可自行重写此方法自定义比较方式

Overrides:

doCompare in class NullCompare<T>

Parameters:

a - A值

b - B值

Returns:

比较结果，-1:a小于b，0:相等，1:a大于b