seqno.java

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package jm.entity;

import jm.entity.ESM000900;
import jm.framework.util.SimpleDBTable;
import jm.util.JM2DArray;
import jm.util.JMENDateUtil;
import jm.util.JMMap;
import jm.util.JMReLoad;
import jm.util.JMUtility;

/**
 * �ɷ�����ݿⶨ����Ҫ�ɷ�����Ŀ���ࣨ���ȣ�����ݵ�ǰʱ��ɷ���YYYYMMDDHHMISS��</p>
 * Ŀǰû�в�����ݿⶨ�峤�ȣ����س���ͳһ
 * <p>Copyright: Copyright (c) 2004-2006</p>
 *
 * <p>Company: 1SHome</p>
 *
 * <p>@author Spook</p>
 *
 * @since 1.3
 * @see JDK 1.5.0.6
 */
public class SEQNo implements JMReLoad {
    private static SEQNo SeqNo = null;
    public static SEQNo getInstance () {
        if (SeqNo == null) {
            SeqNo = new SEQNo();
        }
        return SeqNo;
    }

    private SEQNo(){
//        reLoad();
    }

    private JMMap seqs_ = new JMMap();
    private final static int LENGTH = 4;
    public boolean reLoad () {
//        try {
//            SimpleDBTable _dbTable = new SimpleDBTable(CommandSYKeys.DBTABLE_SEQ);
//            String[] _field = new String[] {CommandSYKeys.DB_KEY_SM000900_SEQVALUE};
//
//            //����
//            JM2DArray seq = _dbTable.select(_field).getResultData();
//            ESM000900 _item = null;
//            for (int i = 0; i < seq.rowCount(); i++) {
//                _item = new ESM000900();
//                _item.setSEQValue(seq.getStringValue(i, 0));
//                seqs_.put(_item.getSEQValue(), _item);
//            }
////System.out.println("SEQNo=="+seqs_);         
//            return true;
//        } catch (Exception e) {
//            e.printStackTrace();
//        }
        return false;
    }

    public synchronized String getNextSeqNo (String key) throws Exception {
//        ESM000900 _item = (ESM000900)seqs_.get(key);
    	ESM000900 _item = new ESM000900();
    	_item.setSEQValue(CommandOftenKeys.SEQ_FAQ);
    	_item.setSEQVName(CommandOftenKeys.SEQ_FAQ);
    	_item.setSEQVCount(0);
    	_item.setUpDateTime("20070723111012");

        String nowDateTime = JMENDateUtil.nowDate(JMENDateUtil.PATTERN_DB_REGIST_DATETIME);
        String oldDateTime = _item.getUpDateTime();
        int nowNum = _item.getSEQVCount();

        if (!nowDateTime.equals(oldDateTime)) {
            nowNum = 0;
            _item.setUpDateTime(nowDateTime);
        } else {
            nowNum++;
        }
        _item.setSEQVCount(nowNum);
        return key + nowDateTime + JMUtility.complement("" + nowNum, "0", LENGTH, true);
    }

//    public static void main (String[] args) {
//        try {
//            reLoad();
//            System.out.println(seqs_);
//            for (int i = 0; i < 10000; i++)
//                System.out.println(getNextSeqNo(OftenCommandKeys.SEQ_KINDID));
//        } catch (Exception e) {
//            e.printStackTrace();
//        }
//    }
}