001/* 
002 * JKNIV, whinstone one contract to access your database.
003 * 
004 * Copyright (C) 2017, the original author or authors.
005 *
006 * This library is free software; you can redistribute it and/or
007 * modify it under the terms of the GNU Lesser General Public
008 * License as published by the Free Software Foundation; either
009 * version 2.1 of the License.
010 * 
011 * This library is distributed in the hope that it will be useful,
012 * but WITHOUT ANY WARRANTY; without even the implied warranty of
013 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
014 * Lesser General Public License for more details.
015 * 
016 * You should have received a copy of the GNU Lesser General Public
017 * License along with this library; if not, write to the Free Software Foundation, Inc., 
018 * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
019 */
020package net.sf.jkniv.whinstone.statement;
021
022import java.util.Iterator;
023
024/**
025 * Bound the key(s) to a entity model.
026 * 
027 * @param <K> key type (String, Long, etc) 
028 * 
029 * @author Alisson Gomes
030 * @since 0.6.0
031 */
032public interface AutoKey<K>
033{
034    /**
035     * Get a unique identifier 
036     * @return unique identifier 
037     */
038    String getUId();
039 
040    /**
041     * Get a identifier 
042     * @return identifier 
043     */
044    K getId();
045    
046    Iterator<K> iterator();
047    
048    boolean hasItem();
049    
050    boolean isEmpty();
051    
052    int size();
053}