simple or query with mongodb java driver

SimpleOrQuery.java

import java.util.ArrayList;
import java.util.List;

import com.mongodb.BasicDBObject;
import com.mongodb.DBCollection;
import com.mongodb.DBObject;
import com.mongodb.Mongo;

public class SimpleOrQuery {

	public static void main(String[] args) throws Exception {
		Mongo mongo = new Mongo("localhost");
		try {
			DBCollection collection = mongo.getDB("test").getCollection("foo");
			collection.insert(new BasicDBObject("foo", "bar1"));
			collection.insert(new BasicDBObject("foo", "bar2"));
			collection.insert(new BasicDBObject("foo", "bar3"));

			List<BasicDBObject> coll = new ArrayList<BasicDBObject>();
			coll.add(new BasicDBObject("foo", "bar1"));
			coll.add(new BasicDBObject("foo", "bar2"));
			BasicDBObject query = new BasicDBObject("$or", coll);

			// does only output two objects
			for (DBObject o : collection.find(query)) {
				System.out.println(o);
			}

		} finally {
			mongo.close();
		}
	}
}