com.vital.api.core.Suppliers Maven / Gradle / Ivy

Go to download
/**
 * This file was auto-generated by Fern from our API Definition.
 */
package com.vital.api.core;

import java.util.Objects;
import java.util.concurrent.atomic.AtomicReference;
import java.util.function.Supplier;

public final class Suppliers {
    private Suppliers() {}

    public static  Supplier memoize(Supplier delegate) {
        AtomicReference value = new AtomicReference<>();
        return () -> {
            T val = value.get();
            if (val == null) {
                val = value.updateAndGet(cur -> cur == null ? Objects.requireNonNull(delegate.get()) : cur);
            }
            return val;
        };
    }
}