Based on the spring framework, the instance is configured as a bean to get the incremental value of the sequence that already exists on Oracle. ____oracle

Import java.util.Collections;
Import Java.util.HashMap;
Import java.util.List;
Import Java.util.Map;

Import Javax.sql.DataSource;

Import Org.springframework.jdbc.support.incrementer.OracleSequenceMaxValueIncrementer;

Import com.huawei.widget.commons.dao.DBException;
Import Com.huawei.widget.commons.dao.spi.SequenceGenerator;
Import Com.huawei.widget.commons.exception.ErrorCode;

/**
* Based on the spring framework, the instance is configured as a bean to get the incremental value of the sequence that already exists on Oracle.
*
* @author g00106664
* @version C02 2009-5-14
* @since OpenEye widget_srv V100R001C02
*/
public class Oraclesequencegeneratorspringimpl implements Sequencegenerator
{
/**
* Self-Booster cache container
*/
Private map<string, oraclesequencemaxvalueincrementer> incrementermap = null;

/**
* Default constructor
*/
Public Oraclesequencegeneratorspringimpl ()
{
}

/*
* (Non-Javadoc)
*
* @see Com.huawei.widget.commons.dao.spi.sequencegenerator#init (Javax.sql.DataSource,
* java.util.List)
*/
public void Init (DataSource DataSource, list<string> sequencenames)
{
Incrementermap = Collections
. Synchronizedmap (New hashmap<string, oraclesequencemaxvalueincrementer> ());

        if (sequencenames!= null)
         {
            for String sequencename: Sequencenames)
            {
                 incrementermap.put (Sequencename,
                         New Oraclesequencemaxvalueincrementer (DataSource,
                                  sequencename));
           }
       }
   }

/*
* (Non-Javadoc)
*
* @see Com.huawei.widget.commons.dao.spi.sequencegenerator#nextintvalue (java.lang.String)
*/
public int Nextintvalue (String sequencename) throws Dbexception
{
Return Getincrementer (Sequencename). Nextintvalue ();
}

/*
* (Non-Javadoc)
*
* @see Com.huawei.widget.commons.dao.spi.sequencegenerator#nextlongvalue (java.lang.String)
*/
Public long Nextlongvalue (String sequencename) throws Dbexception
{
Return Getincrementer (Sequencename). Nextlongvalue ();
}

/*
* (Non-Javadoc)
*
* @see Com.huawei.widget.commons.dao.spi.sequencegenerator#nextstringvalue (java.lang.String)
*/
public string Nextstringvalue (String sequencename) throws Dbexception
{
Return Getincrementer (Sequencename). Nextstringvalue ();
}

Private Oraclesequencemaxvalueincrementer Getincrementer (String sequencename)
Throws Dbexception
{
Oraclesequencemaxvalueincrementer Incrementer = Incrementermap
. get (Sequencename);
if (null = = Incrementer)
{
throw new Dbexception (Errorcode.common_get_sequence_unikey_fail,
"The Incrementer of sequence:" + sequencename
+ "is not initialized.");
}

        return incrementer;
   }
}