Iteration problem. Please GUIDE.

Question

i am facing a tricky problem
I have a predefined RowsetIterator tag which iterates over a datasource
So if a datasource has 20 rows,the iterator will go over each row.
displayPositions.jsp
<pd:RowsetIterator   datasource="ViewObject" >
    <mytag:DetailRowsIterate>
</pd:RowsetIterator>The above code displays all 20 rows.Thats fine.
There is a slight change in the functionality.
I need to display the next row after the current row.
ie,display the next row after current record.
So i wrote by own tag called 'DetailRowsIterate' as a nested tag.
This tag looks at the datasource and displays the next record
after the current record.(So i can view 10 records only.right?)
The problem is that i can i can see the 10 records on the system.out.println
but not on my JSP page.
I can view the 10 records on my System.out.println and then the 20 records
gets displayed in the JSP Page.I dont want that.I want the 10 records only
to be displayed by the page.
I tried using 'DetailRowsIterate' as a nested tag but still,its displays the
10 records first on the System,out.println() and then the 20 records
on the JSP Page.
I tried this
<jbo:RowsetIterate datasource="<%=dsParam%>" changecurrentrow="false" userange="true">
      <imjbo:DetailRowsIterate >
             <imjbo:DisplayValue />  
       </imjbo:DetailRowsIterate />
    </jbo:RowsetIterate>No luck.
iS THERE A FAULT IN MY DetailRowsIterate tag?
This is the code
public class CheckDetailRowsIterate extends TagSupport
     public int doStartTag() throws JspException
       /* Just for Seeing data values. */
       StatusLog log = StatusLog.getLogger();
       String ClassName = this.getClass().getName();
       Row currentRow = null;
       Row nextRow = null;
       ViewObject vo = null;
       DataSource dataSource = null;
       /* Get the Current Row data */
       String c_CmpyCode;
       /* Get the Next Row data */
       String n_CmpyCode;
       /* Find the current row and get Data out of it */
       RowsetIterateTag detailIterator = (RowsetIterateTag)TagSupport.findAncestorWithClass(this, RowsetIterateTag.class);
       if (detailIterator != null)
          currentRow = detailIterator.getRow();
          dataSource =  detailIterator.getDataSource();
       else
           // No row iterator
       if(currentRow != null)
         String[] attrNames = currentRow.getAttributeNames();
         Object[] obj = currentRow.getAttributeValues();
         // Get the attribute Values of the Current Row.
         c_CmpyCode = obj[currentRow.getAttributeIndexOf("CmpyCode")].toString();
         // Obtain an ApplicationModule.
         ApplicationModule am  = dataSource.getApplicationModule();
         // Get the DataSourceName.
         String dataSourceName = detailIterator.getDataSourceName();
         // Obtain a View Object by passing the dataSourceName.
         vo = am.findViewObject(dataSourceName);  
         // Go the current record.
         nextRow = vo.next();
         if(vo.hasNext())
           nextRow = vo.next();  // Go to the record after the 'current record',
                                 // this is the next row after the current row.
           attrNames = nextRow.getAttributeNames();
           obj = nextRow.getAttributeValues();
           // Get the attribute Values for the NEXT RECORD.
           n_CmpyCode = obj[nextRow.getAttributeIndexOf("CmpyCode")].toString();
          System.out.println(NEW NEXT ROW Values ARE : " + n_CmpyCode);
           // Extremely Important.
           nextRow = vo.previous();                                                              
         }  // End if(vo.hasNext())
        }  // End if(currentRow !=null)
        //return Tag.SKIP_BODY;
        return EVAL_BODY_INCLUDE;
     } // End of doStartTag()
}  // End class.

Answer 1

How do you know it is not working?