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Carefully designed and efficient extension of the Java Collections Framework with primitive specializations and more, built for Java 8 (Implementation)

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/*
 * Copyright 2014 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.koloboke.collect.impl.hash;

import com.koloboke.collect.hash.*;

import java.util.Random;
import java.util.concurrent
     .ThreadLocalRandom;


abstract class LongQHashFactory
         extends LongHashFactorySO {

    LongQHashFactory(HashConfig hashConf, int defaultExpectedSize
            , long lower, long upper) {
        super(hashConf, defaultExpectedSize, lower, upper);
    }

    abstract MT createNewMutable(int expectedSize, long free, long removed);

    

    MT newMutableHash(int expectedSize) {
        long free, removed;
        if (randomRemoved) {
            Random random = ThreadLocalRandom.current();
            removed = (long) random.nextLong();
            if (randomFree) {
                free = (long) random.nextLong();
            } else {
                free = freeValue;
            }
            while (free == removed) {
                removed = (long) random.nextLong();
            }
        } else {
            removed = removedValue;
            free = freeValue;
        }
        return createNewMutable(expectedSize, free, removed);
    }

}