datasourcemanager.java

SAP这个系统的一个转换器

package com.scxh.eei.sql;


import java.util.Hashtable;
import javax.sql.DataSource;

public class DataSourceManager {
  private static Hashtable dslist=new Hashtable();
  private static String defaultdatasourcename="";
  static public void registDataSource(String dsname,DataSource ds){
    bind(dsname,ds);
  }
  static public void registerDefaultDatasource(String defaultname,
                                    DataSource ds){
    registDataSource(defaultname,ds);
    defaultdatasourcename=defaultname;
  }
  static public void bind(String dsname,DataSource ds){
    dslist.put(dsname,ds);
  }
  static public void removeDataSource(String dsname){
    unbind(dsname);
  }
  static public void unbind(String dsname){
    dslist.remove(dsname);
  }
  static public DataSource lookup(String dsname){
    return (DataSource)dslist.get(dsname);
  }
  static public DataSource lookup(){
    return lookup(defaultdatasourcename);
  }
}