afterReportInit() is not called in Scriptlet

[2005 IR Help]

By: Stephan Portmann - spor

afterReportInit() is not called in Scriptlet

2004-07-30 06:03

I wrote my own Scriptlet but the method afterReportInit() nor any other method gets called. I see that my scriptlet is instantiated...but no methods are called after words.

 

thank you for any help.

 

********************************

import dori.jasper.engine.*;

 

import java.awt.*;

import java.awt.image.*;

import java.sql.Connection;

import java.sql.SQLException;

 

import org.jfree.chart.ChartFactory;

import org.jfree.chart.JFreeChart;

import org.jfree.chart.plot.PiePlot3D;

import org.jfree.data.CategoryDataset;

import org.jfree.data.DatasetUtilities;

import org.jfree.data.DefaultCategoryDataset;

import org.jfree.data.JDBCCategoryDataset;

import org.jfree.data.JDBCPieDataset;

import org.jfree.data.PieDataset;

 

public class ChartScriptlet extends JRDefaultScriptlet

{

 

private Connection _connection;

 

public ChartScriptlet() {

 

_connection = LoginServlet._connection;

 

}

public void afterReportInit() throws JRScriptletException

{

 

JDBCPieDataset pieDataSet = new JDBCPieDataset(_connection);

try {

pieDataSet.executeQuery("select * from pie_test");

}

catch (SQLException sqlEx) {

sqlEx.printStackTrace();

}

 

JFreeChart chart = ChartFactory.createPieChart3D("Pie Chart 3D Demo 1", pieDataSet, true, true, false);

BufferedImage image = chart.createBufferedImage(400, 400);

 

this.setVariableValue("ChartImage", image);

}

}

 

 

 

 

 

 

By: Mykel Alvis - evilarchitect

RE: afterReportInit() is not called in Scriptlet

2004-07-30 07:46

1. Where does LoginServlet._connection come from? More specifically, where's the import for LoginServlet?

Sounds likely that the class didn't compile.

 

I use afterReportInit() extensively for exactly this purpose and it works flawlessly.

 

 

 

 

By: Adrian - preziosoadrian

RE: afterReportInit() is not called in Scriptlet

2004-11-06 14:50

I am experiencing the exact same problem. I am using the jfreechart sample that comes with jasper reports. My servlet exports the report to an html file with no errors, but the afterReportInit() method of JFreeChartScriplet does not get called. To be sure, I overrode all methods of JRDefaultScriplet in JFreeChartScriplet and added debug statements in them to tell me when they were entered. I do not see any of the debug messages except the one in the JFreeChartScriplet constructor. Very weird. Any suggestions? I'm really stuck.

 

Thanks,

Adrian