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/*
 * Copyright (c) 1997, 2021 Oracle and/or its affiliates. All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v. 1.0, which is available at
 * http://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */
package com.sun.xml.ws.transport.tcp.connectioncache.spi.concurrent;

import com.sun.xml.ws.transport.tcp.connectioncache.impl.concurrent.ConcurrentQueueBlockingImpl;
import com.sun.xml.ws.transport.tcp.connectioncache.impl.concurrent.ConcurrentQueueImpl;

/**
 * A factory class for creating instances of ConcurrentQueue. Note that a rather
 * unusual syntax is needed for calling these methods:
 *
 * {@code ConcurrentQueueFactory.makeXXXConcurrentQueue()}
 *
 * This is required because the type variable V is not used in the parameters of
 * the factory method, so the correct type cannot be inferred by the compiler.
 */
public final class ConcurrentQueueFactory {

    private ConcurrentQueueFactory() {
    }

    /**
     * Create a ConcurrentQueue whose implementation uses conventional locking
     * to protect the data structure.
     */
    public static  ConcurrentQueue makeBlockingConcurrentQueue() {
        return new ConcurrentQueueBlockingImpl();
    }

    /**
     * Create a ConcurrentQueue that does no locking at all. For use in data
     * structures that manage their own locking.
     */
    public static  ConcurrentQueue makeConcurrentQueue() {
        return new ConcurrentQueueImpl();
    }
}




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