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/*******************************************************************************
 *  Copyright (C) 2007, 2015:
 *  
 *    - Ferdinando Villa 
 *    - integratedmodelling.org
 *    - any other authors listed in @author annotations
 *
 *    All rights reserved. This file is part of the k.LAB software suite,
 *    meant to enable modular, collaborative, integrated 
 *    development of interoperable data and model components. For
 *    details, see http://integratedmodelling.org.
 *    
 *    This program is free software; you can redistribute it and/or
 *    modify it under the terms of the Affero General Public License 
 *    Version 3 or 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
 *    Affero General Public License for more details.
 *  
 *     You should have received a copy of the Affero 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.
 *     The license is also available at: https://www.gnu.org/licenses/agpl.html
 *******************************************************************************/
package org.integratedmodelling.engine.kbox.sql.h2;

import java.util.Arrays;
import java.util.Comparator;
import java.util.Iterator;
import java.util.List;

import org.integratedmodelling.api.monitoring.IMonitor;
import org.integratedmodelling.collections.ImmutableList;
import org.integratedmodelling.common.utils.MatchedSorter;

/**
 * List to return results of a NeoKBox query. Only stores object IDs, creating
 * any object lazily.
 * 
 * Allows specifying a sorting score from outside for each result. If the scores
 * are given, iteration will be in descending score order. Scores are doubles and
 * expected to be 0-1; the default value of a score when only some are specified 
 * is 0.
 * 
 * @author Ferd
 *
 */
public class H2Result extends ImmutableList /* implements SQL.ResultHandler */ {

    List results;
    H2Kbox     kbox;
    IMonitor   monitor;
    Class cls;

    class KboxIterator implements Iterator {

        int idx = 0;

        @Override
        public boolean hasNext() {
            return idx < results.size();
        }

        @Override
        public T next() {
            return (T)get(idx++);
        }

        @Override
        public void remove() {
            throw new UnsupportedOperationException("cannot modify read-only kbox iterator");
        }
    }

    public H2Result(H2Kbox kbox, List res, List