External Class question

[2005 IR Help]

By: hillary - wikkitt

External Class question

2005-10-26 08:21

Where do I put an external class for my report to use?

Do I have to create a jar file?

I tried putting my class file in the lib folder but ireport won't read it.

 

I need to pass the class a comma delimited string of numbers. A method will then break up the string and put the individual numbers into a HashMap that the report can read.

 

Thanks

 

 

 

 

 

By: hillary - wikkitt

RE: External Class question

2005-10-26 10:18

Hi all,

 

Ok, I got my report to read the class, but my method is not working.

 

I read in the manual(pg96-97) that if you passed a $P{} to the external method, it would be passed as a map object and I could add to it so my report could access the processed data.

 

I'm just testing right now but here's my code:

 

public class ReportHelper {

 

public ReportHelper() { }

 

public static Boolean myName(Object map){

String key = "my_name";

String name = "Mud";

((HashMap)map).put(key,name);

return true;

}

}

 

I placed a textfield on my report and in the "Print When expression" I put:

 

(ReportHelper.myName($P{my_name}))

 

But apparently iReports doesn't send it as a map, but sends the value of that parameter instead.

 

Like i said above, I need to send it a srting of numbers and return the individual numbers plus some math results from those numbers.

 

Any suggestions?