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List:       taglibs-user
Subject:    Re: Rowcount from DBtags in the pageContext - How(?)
From:       Morgan Delagrange <morgand () apache ! org>
Date:       2001-06-27 20:53:43
[Download RAW message or body]

You could assign the row count to a variable using a tag library, e.g. the
Page taglib.  That's the easiest way to capture output from the page.

On Tue, 26 Jun 2001 Damicabi@aol.com wrote:

> Hi people
> 
> I'm using the DBtags and the utility tag libraries, and what I want to 
> achieve is printing the result of
> a query in a textfield, retrieve the number of rows in the resultset, and use 
> it in the JSP page context
> Can I do that using these tag libraries?
> 
> To be concrete
> 
> <sql:preparedStatement id="stmt2" conn="conn1">
>   <sql:query>
>     select surname, name, age from account
>     order by 1
>   </sql:query>
>   <sql:resultSet id="rset1">
>     <tr>
>       <td><INPUT TYPE="TEXT" NAME="name_<sql:rowCount/>" 
> VALUE="<sql:getColumn position='1'/>"</td>
>       <td><INPUT TYPE="TEXT" NAME="surname_<sql:rowCount/>" 
> VALUE="<sql:getColumn position='2'/>"</td>
>       <td><INPUT TYPE="TEXT" NAME="age_<sql:rowCount/>" VALUE="<sql:getColumn 
> position='3'/>"
>       <sql:wasNull>[no description]</sql:wasNull></td>
>     </tr>
>   </sql:resultSet>
> 
> 
>  
>  <jLib:for varName="j" iterations="<%=<sql:rowCount/>+5%>" 
> begin="<%=<sql:rowCount/>%>" > 
>     <tr>
>       <td><INPUT TYPE="TEXT" NAME="name_<%=j.intValue()%>" VALUE=""></td>
>       <td><INPUT TYPE="TEXT" NAME="surname_<%=j.intValue()%>" VALUE=""></td>
>       <td><INPUT TYPE="TEXT" NAME="age_<%=j.intValue()%>" VALUE=""></td>
>     </tr>
> </jLib:for>
> 
> Of course the line
> 
> <jLib:for varName="j" iterations="<%=<sql:rowCount/>+5%>" 
> begin="<%=<sql:rowCount/>%>" > 
>  
> 
>  does not work. I should retrieve a variable from the page context 
>  <% int totalRows = <sql:rowCount/>; %>
> 
>  but that does not work. There should be a TEI class in the tag library which 
> gives me the number of rows.
>  I see the dbtags puts the resultSet and the statement in the page Context, 
> but there is not a way, as far as I see,
>  to retrieve the number of the current row from these, for instance through
> 
> <% int totalRows = rset1.getRowCount(); %>
> 
> As far as I can see, the ResultSetTag increments his rowCount while 
> retrieving the data.
> 
> Can you help me achieve what I want?
> 
> Greetings
> Diego
> 
> 

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