com.bigdata.bop.SimpleIdFactory Maven / Gradle / Ivy

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/**

Copyright (C) SYSTAP, LLC DBA Blazegraph 2006-2016.  All rights reserved.

Contact:
     SYSTAP, LLC DBA Blazegraph
     2501 Calvert ST NW #106
     Washington, DC 20008
     [email protected]

This program 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; version 2 of the License.

This program 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 this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*/
package com.bigdata.bop;

import java.util.concurrent.atomic.AtomicInteger;

public class SimpleIdFactory implements IdFactory {

    /**
     * Note: The ids are assigned using {@link AtomicInteger#incrementAndGet()}
     * so ONE (1) is the first id that will be assigned when we pass in ZERO (0)
     * as the initial state of the {@link AtomicInteger}.
     */
    private final AtomicInteger nextId = new AtomicInteger(0);

    /**
     * {@inheritDoc}
     */
    @Override
    public int nextId() {

        return nextId.incrementAndGet();
        
    }

}