io.polyglotted.common.util

Class NullUtil

java.lang.Object

io.polyglotted.common.util.NullUtil

public abstract class NullUtil
extends java.lang.Object

Constructor Summary

Constructors

Constructor and Description
NullUtil()

Method Summary

Modifier and Type	Method and Description
static <T> T	nonNull(T nullable, java.util.function.Supplier<T> supplier)
static <T> T	nonNull(T nullable, T defValue)
static <T> T	nonNull(T first, T second, T third)
static <K,V> V	nonNullFn(K nullable, java.util.function.Function<K,V> function, java.util.function.Supplier<V> supplier)
static <K,V> V	nonNullFn(K nullable, java.util.function.Function<K,V> function, V defVal)
static <T> T	nonNullIn(T... list)
static java.lang.String	sysVar(java.lang.String key)
static java.lang.String	sysVar(java.lang.String key, java.lang.String defVal)
static java.lang.String	sysVarOrNull(java.lang.String key)

Methods inherited from class java.lang.Object

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

Constructor Detail

NullUtil

public NullUtil()

Method Detail

sysVar

public static java.lang.String sysVar(java.lang.String key)

sysVarOrNull

public static java.lang.String sysVarOrNull(java.lang.String key)

sysVar

public static java.lang.String sysVar(java.lang.String key,
                                      java.lang.String defVal)

nonNull

public static <T> T nonNull(T nullable,
                            java.util.function.Supplier<T> supplier)

nonNull

public static <T> T nonNull(T nullable,
                            T defValue)

nonNull

public static <T> T nonNull(T first,
                            T second,
                            T third)

nonNullIn

@SafeVarargs
public static <T> T nonNullIn(T... list)

nonNullFn

public static <K,V> V nonNullFn(K nullable,
                                java.util.function.Function<K,V> function,
                                V defVal)

nonNullFn

public static <K,V> V nonNullFn(K nullable,
                                java.util.function.Function<K,V> function,
                                java.util.function.Supplier<V> supplier)