JavaHashMapIteration.java

// ////////////////////////////////////////////////////////////////////////////
// Copyright (c) 2009, Rob Eden All Rights Reserved.
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
//
// This library 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 Lesser 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 gnu.trove.benchmark;

import java.util.HashMap;
import java.util.Map;


/**
 *
 */
class JavaHashMapIteration implements Benchmark {
	private Map<Integer,Integer> map = new HashMap<Integer,Integer>();
	
	public void setUp() {
		if ( !map.isEmpty() ) return;

		for( int j = 0; j < 2; j++ ) {
			for( Integer i : BenchmarkRunner.INTEGERS ) {
				map.put( i, i );
			}
		}
	}

	public void tearDown() {}

	public String getName() {
		return "Java HashMap Iteration";
	}

	public void run() {
		int total = 0;

		for( int i = 0; i < 5; i++ ) {
			for( Map.Entry<Integer,Integer> entry : map.entrySet() ) {
				total += entry.getKey().intValue();
			}
		}
	}
}