sepangprevaylerdriver.java

个人感觉非常不错的poleperst-acid

/* 
This file is part of the PolePosition database benchmark
http://www.polepos.org

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; either version 2
of the License, or (at your option) any later version.

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 org.polepos.teams.prevayler.sepang;

import org.polepos.circuits.sepang.*;
import org.polepos.teams.prevayler.*;

/**
 * @author Herkules
 */
public class SepangPrevaylerDriver extends PrevaylerDriver implements SepangDriver{
    
	private final SepangSystem _sepangSystem = (SepangSystem)_prevayler.prevalentSystem();

    public void write() {
        _prevayler.execute(new TreeCreationTransaction(setup().getTreeDepth()));
	}

	public void read(){
        Tree.traverse(_sepangSystem.tree(), new TreeVisitor() {
            public void visit(Tree tree) {
                addToCheckSum(tree.getDepth());
            }
        });
	}

    public void read_hot() {
        read();
    }

    public void delete() {
        _prevayler.execute(new TreeDeletionTransaction());
    }

    protected Object prevalentSystem() {
        return new SepangSystem();
    }
    
}