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/*
 * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
 * or more contributor license agreements. Licensed under the Elastic License
 * 2.0 and the Server Side Public License, v 1; you may not use this file except
 * in compliance with, at your election, the Elastic License 2.0 or the Server
 * Side Public License, v 1.
 */

package org.elasticsearch.common;

import java.util.function.Supplier;

public class MemoizedSupplier implements Supplier {
    private Supplier supplier;
    private T value;

    public MemoizedSupplier(Supplier supplier) {
        this.supplier = supplier;
    }

    @Override
    public T get() {
        if (supplier != null) {
            value = supplier.get();
            supplier = null;
        }
        return value;
    }
}