queryresult.java

来自「一个利用javabeanjsp产生联动分布的源代码」· Java 代码 · 共 44 行

//Source file: C:\\Rose2Java\\zhsoft\\dbcon\\QueryResult.java

package zhsoft.dbcon;

import java.util.Vector;

/**
 * 数据库查询结果集
 *
 * @author 雨亦奇([e-mail])
 * @version 1.0
 * @since 2003.05.18
 */
public class QueryResult extends Vector
{

   /**
    * @roseuid 3ED8687E02FB
    */
   public QueryResult()
   {

   }

   /**
    * 取一行结果
    *
    * @param lineno - 行号
    * @return zhsoft.dbcon.ResultRow
    * @throws java.lang.Exception
    * @roseuid 3ED55155003C
    */
   public ResultRow getRow(int lineno) throws Exception
   {
        if (this.size() == 0) {
            throw new Exception("结果集中记录为0");
        }
        if (lineno < 0 || lineno >= this.size()) {
            throw new Exception("无指定行号的记录,行号范围[0.." + (this.size() - 1) + "]");
        }
        return (ResultRow) ( (ResultRow) (this.elementAt(lineno))).clone();
   }
}