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How Does it Work RowMapper

sushi kumar
Greenhorn

Joined: Oct 17, 2008
Posts: 2
Hi,
I wanted to know when is the mapRow Method is been called.


Starts Here////

List userList=login.getLogindataList(bean.getUserName().trim(),encpassword);





public class ListRowMapper implements RowMapper
{
public Object mapRow(ResultSet rs, int rowNum) throws SQLException
{
Loginbean data = new Loginbean(rs.getInt(1),rs.getString(2));
return data;
}

ListRowMapper()
{
}


}


//////////////////////// Method //////////////

public List getLogindataList(String username,String password)
{
Object parms[]={username.toUpperCase(),password};
List noOfUsers = _jdbcTemplate.query("Select user_no,user_type from email.admin_user_master where upper(user_id) = ? and password = ?",parms, new ListRowMapper());
return noOfUsers;
}
Mark Spritzler
ranger
Sheriff

Joined: Feb 05, 2001
Posts: 17250
    
    6

The JdbcTemplate hides the normal regular plumbing code of jdbc. After the query is run a ResultSet is returned. In the JdbcTemplate, it will loop through the ResultSet and get a row, it will pass that row to the RowMapper class via the mapRow() method, along with which record number it is in the ResultSet.

That is all, it is called right after the query is run.

Mark


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