程序包 org.hibernate.internal.util

类 NullnessHelper

java.lang.Object

org.hibernate.internal.util.NullnessHelper

public class NullnessHelper
extends Object

作者:

Steve Ebersole

构造器概要

构造器

构造器	说明
NullnessHelper()

方法概要

修饰符和类型	方法	说明
static <T> T	coalesce(T... values)	Operates like SQL coalesce expression, except empty strings are treated as null.
static <T> T	coalesceSuppliedValues(Supplier<T>... valueSuppliers)	Find the first non-null value supplied by the given suppliers

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

NullnessHelper

public NullnessHelper()

方法详细资料

coalesce

public static <T> T coalesce(T... values)

Operates like SQL coalesce expression, except empty strings are treated as null. Return the first non-empty value

类型参数:

T - Generic type of values to coalesce

参数:

values - The list of values.

返回:

The first non-empty value, or null if all values were empty

coalesceSuppliedValues

public static <T> T coalesceSuppliedValues(Supplier<T>... valueSuppliers)

Find the first non-null value supplied by the given suppliers