Class ObjectUtils

java.lang.Object

com.kingsrook.qqq.backend.core.utils.ObjectUtils

public class ObjectUtils
extends Object

Constructor Summary

Constructors

Constructor	Description
ObjectUtils()

Method Summary

Modifier and Type	Method	Description
static boolean	ifCan(UnsafeSupplier<Boolean,? extends Throwable> supplier)	Utility to test a chained unsafe expression CAN get to the end and return true.
static <T> void	ifNotNull(T object, Consumer<T> consumer)
static <T, E extends Exception> void	ifNotNullUnsafe(T object, UnsafeConsumer<T,E> consumer)
static <T> T	requireConditionElse(T a, Predicate<T> condition, T b)
static <T> T	requireNonNullElse(T... objects)	A varargs version of Objects.requireNonNullElse
static <T> T	tryAndRequireNonNullElse(UnsafeSupplier<T,?> supplier, T defaultIfThrew)	Like Objects.requireNonNullElse, only use an (unsafe) supplier as the first arg, and if it throws or returns null, then return the 2nd arg
static <T> T	tryElse(UnsafeSupplier<T,?> supplier, T defaultIfThrew)	Like Objects.requireNonNullElse, only use an (unsafe) supplier as the first arg, and only if it throws, return the 2nd arg

Methods inherited from class java.lang.Object

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

Constructor Details

ObjectUtils

public ObjectUtils()

Method Details

requireNonNullElse

@SafeVarargs
public static <T> T requireNonNullElse(T... objects)

A varargs version of Objects.requireNonNullElse

tryElse

public static <T> T tryElse(UnsafeSupplier<T,?> supplier,
 T defaultIfThrew)

Like Objects.requireNonNullElse, only use an (unsafe) supplier as the first arg, and only if it throws, return the 2nd arg

tryAndRequireNonNullElse

public static <T> T tryAndRequireNonNullElse(UnsafeSupplier<T,?> supplier,
 T defaultIfThrew)

Like Objects.requireNonNullElse, only use an (unsafe) supplier as the first arg, and if it throws or returns null, then return the 2nd arg

ifNotNull

public static <T> void ifNotNull(T object,
 Consumer<T> consumer)

ifNotNullUnsafe

public static <T,
E extends Exception> void ifNotNullUnsafe(T object,
 UnsafeConsumer<T,E> consumer)
                                                     throws E

Throws:

E

requireConditionElse

public static <T> T requireConditionElse(T a,
 Predicate<T> condition,
 T b)

ifCan

public static boolean ifCan(UnsafeSupplier<Boolean,? extends Throwable> supplier)

Utility to test a chained unsafe expression CAN get to the end and return true. e.g., instead of: if(a invalid input: '&'invalid input: '&' a.b invalid input: '&'invalid input: '&' a.b.c invalid input: '&'invalid input: '&' a.b.c.d) we can do: if(ifCan(() -> a.b.c.d)) Note - if the supplier returns null, that counts as false!