程序包 cn.taketoday.util.comparator

类 Comparators

java.lang.Object

cn.taketoday.util.comparator.Comparators

public abstract class Comparators
extends Object

Convenient entry point with generically typed factory methods for common Comparator variants.

从以下版本开始:

4.0

作者:

Juergen Hoeller

构造器概要

构造器

构造器	说明
Comparators()

方法概要

修饰符和类型	方法	说明
static <T> Comparator<T>	comparable()	Return a Comparable adapter.
static <T> Comparator<T>	nullsHigh()	Return a Comparable adapter which accepts null values and sorts them higher than non-null values.
static <T> Comparator<T>	nullsHigh(Comparator<T> comparator)	Return a decorator for the given comparator which accepts null values and sorts them higher than non-null values.
static <T> Comparator<T>	nullsLow()	Return a Comparable adapter which accepts null values and sorts them lower than non-null values.
static <T> Comparator<T>	nullsLow(Comparator<T> comparator)	Return a decorator for the given comparator which accepts null values and sorts them lower than non-null values.

从类继承的方法 java.lang.Object

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

构造器详细资料

Comparators

public Comparators()

方法详细资料

comparable

public static <T> Comparator<T> comparable()

Return a Comparable adapter.

另请参阅:

• ComparableComparator.INSTANCE

nullsLow

public static <T> Comparator<T> nullsLow()

Return a Comparable adapter which accepts null values and sorts them lower than non-null values.

另请参阅:

• NullSafeComparator.NULLS_LOW

nullsLow

public static <T> Comparator<T> nullsLow(Comparator<T> comparator)

Return a decorator for the given comparator which accepts null values and sorts them lower than non-null values.

另请参阅:

• NullSafeComparator(boolean)

nullsHigh

public static <T> Comparator<T> nullsHigh()

Return a Comparable adapter which accepts null values and sorts them higher than non-null values.

另请参阅:

• NullSafeComparator.NULLS_HIGH

nullsHigh

public static <T> Comparator<T> nullsHigh(Comparator<T> comparator)

Return a decorator for the given comparator which accepts null values and sorts them higher than non-null values.

另请参阅:

• NullSafeComparator(boolean)