org.hibernate.internal.util

Class NullnessHelper

java.lang.Object

org.hibernate.internal.util.NullnessHelper

public class NullnessHelper
extends Object

Author:

Steve Ebersole

Constructor Summary

Constructors

Constructor and Description
NullnessHelper()

Method Summary

Modifier and Type	Method and Description
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

Methods inherited from class java.lang.Object

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

Constructor Detail

NullnessHelper

public NullnessHelper()

Method Detail

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

Type Parameters:

T - Generic type of values to coalesce

Parameters:

values - The list of values.

Returns:

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