<!--StartFragment--> package org.apache.taglibs.display.test;
import org.apache.taglibs.display.TableDecorator;
/** * This decorator only does a summing of different groups in the reporting * style examples... **/
public class TotalWrapper extends TableDecorator
{
private double cityTotal = 0;
private double grandTotal = 0;/** * After every row completes we evaluate to see if we should be drawing a * new total line and summing the results from the previous group. */
public String finishRow()
{
int listindex = this.getList().indexOf( this.getObject() );
ReportableListObject o1 = (ReportableListObject)this.getObject();
String nextCity = ""; cityTotal += o1.getAmount();
grandTotal += o1.getAmount(); if( listindex == this.getList().size() - 1 ) {
nextCity = "XXXXXX"; // Last row hack, it's only a demo folks...
} else {
nextCity = ( (ReportableListObject)this.getList().get( listindex +
1 ) ).getCity();
}StringBuffer sb = new StringBuffer( 1000 );
// City subtotals...
if( !nextCity.equals( o1.getCity() ) ) {
sb.append( "<tr><td> </td><td> </td><td><hr noshade size
=\"1\"></td>" );
sb.append( "<td> </td></tr>" ); sb.append( "<tr><td> </td>" );
sb.append( "<td align=\"right\"><b>" + o1.getCity() + "
Total:</b></td><td><b>" );
sb.append( cityTotal );
sb.append( "</b></td><td> </td></tr>" );
sb.append( "<tr><td colspan=\"4\"> </td></tr>" ); cityTotal = 0;
} // Grand totals...
if( listindex == this.getList().size() - 1 ) {
sb.append( "<tr><td colspan=\"4\"><hr noshade size
=\"1\"></td></tr>" );
sb.append( "<tr><td> </td>" );
sb.append( "<td align=\"right\"><b>Grand Total:</b></td><td><b>"
);
sb.append( grandTotal );
sb.append( "</b></td><td> </td></tr>" );
}return sb.toString(); } } <!--EndFragment-->
Regards Jason Meredith
_________________________________________________________________
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