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• 1.0.0
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• NullUtil.java

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io.polyglotted.common.util.NullUtil Maven / Gradle / Ivy

package io.polyglotted.common.util;

import java.util.function.Function;
import java.util.function.Supplier;

@SuppressWarnings({"unused", "WeakerAccess"})
public abstract class NullUtil {

    public static  T nonNull(T nullable, Supplier function) { return nullable != null ? nullable : function.get(); }

    public static  T nonNull(T nullable, T defValue) { return nullable != null ? nullable : defValue; }

    public static  T nonNull(T first, T second, T third) { return first != null ? first : second != null ? second : third; }

    @SafeVarargs public static  T nonNullIn(T... list) { for (T t : list) { if (t != null) return t; } return null; }

    public static  V nonNullFn(K nullable, Function function, V defVal) { return nullable != null ? function.apply(nullable) : defVal; }
}