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/*
    SpecRunner - Acceptance Test Driven Development Tool
    Copyright (C) 2011-2014  Thiago Santos

    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 3 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, see 
 */
package org.specrunner.dbms;

import java.util.Comparator;

/**
 * Paring algorithm.
 * 
 * @author Thiago Santos
 *
 * @param 
 *            Object type.
 */
public interface IPairing {

    /**
     * Get an iteration of ordered elements.
     * 
     * @param old
     *            List of old elements.
     * @param current
     *            List of current elements.
     * @param comparator
     *            Object comparators.
     * @return An iteration of pairs.
     */
    Iterable> pair(Iterable old, Iterable current, Comparator comparator);
}