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Report without database query


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By: Roque Campos - roquec

Report without database query

2005-07-04 13:31

Dear Friends:

 

First of all, I have to request apologizes about my bad english.

 

I need to do a little report, wich has not a query: it has only a few parameters that are known before launching the report.

 

The only way that I found was making a report with a fake query (select sysdate form dual), and then calling that report passing him the parameters.

 

If I leave the query "blank", Jrviewer just shows me a blank page, in spite of I was passing him the parameters.

 

Currently my solution works with the fake query, but I know that is is not very elegant.

 

Is there any standard way to do reports without quering a database? Reports with a few parameters passed by the application.

 

Thanks in advance

 

PS: I'm using Ireport to design it

 

 

 

 

By: C-Box - c-box

RE: Report without database query

2005-07-04 22:44

You needn't pass any query if you don't pass also a database-connection...

 

so if you don't want to use a connection just use "new JREmptyDataSource()" as parameter when filling the report.

 

As you want to use parameters instead you must put them into the parameter-map.... I guess that is clear... but therefore that the report doesn't get any "real" data, you must set your report attribute "WhenNoData" to the value "AllSectionsNoDetail" instead of "NoPages".... note that you dont place your parameter in detailband but instead into a dummygroupheaderband or title or whatever! :-)

 

hth

C-Box

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