fr.ms.lang.delegate.DefaultSyncLongFactory Maven / Gradle / Ivy

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/*
 * This file is part of Log4Jdbc.
 *
 * Log4Jdbc is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Log4Jdbc is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Log4Jdbc.  If not, see .
 *
 */
package fr.ms.lang.delegate;

import fr.ms.lang.ClassUtils;
import fr.ms.lang.sync.impl.AtomicLongImpl;
import fr.ms.lang.sync.impl.SyncLongImpl;

/**
 *
 * @see Marco4J
 *
 *
 * @author Marco Semiao
 *
 */
public class DefaultSyncLongFactory implements SyncLongFactory {

    private final static SyncLongFactory instance = new DefaultSyncLongFactory();

    private static SyncLongFactory delegate;

    static {
	if (ClassUtils.classPresent("java.util.concurrent.atomic.AtomicLong")) {
	    delegate = AtomicLongImpl.getSyncLongFactory();
	} else {
	    delegate = SyncLongImpl.getSyncLongFactory();
	}
    }

    private DefaultSyncLongFactory() {
    }

    public static SyncLongFactory getInstance() {
	return instance;
    }

    public SyncLong newLong() {
	return delegate.newLong();
    }

    public SyncLong newLong(final long initialValue) {
	return delegate.newLong(initialValue);
    }
}