I am using the iText libraries to generate the PDF, so I am Producing my Problem with iText, or did I misunderstood your question?
best Regards armerIrrer -------- Original-Nachricht -------- > Datum: Tue, 3 Jun 2008 16:06:30 +0100 > Von: "Paulo Soares" <[EMAIL PROTECTED]> > An: "Post all your questions about iText here" > <itext-questions@lists.sourceforge.net> > Betreff: Re: [iText-questions] NullPointerException in onEndPage > In what way is this related to iText? > > Paulo > > > -----Original Message----- > > From: [EMAIL PROTECTED] > > [mailto:[EMAIL PROTECTED] On > > Behalf Of "Tim Tönnsen" > > Sent: Tuesday, June 03, 2008 3:54 PM > > To: itext-questions@lists.sourceforge.net > > Subject: [iText-questions] NullPointerException in onEndPage > > > > Hi Everybody, > > > > in the moment I am writing an application for a Customer. One > > functionality is the option to generate a pdf-file. To do > > this, I wrote a Controller which extends the > > PdfPageEventHelper. the Controller has a print(DataObject > > toPrint) method. These PrintMethod prints the Data's given as > > the parameter "toPrint", but first of all the toPrint Object > > is stored in a global variable. Everything worked fine until > > I overrids the onPageEnd Method, to generate a Header. The > > problem is that the global Variable holding the data to be > > printed is null, althought is was set by the call of the > > print method. Unfortunately, I am not allowed to send the > > complete code, but I added a bit pseudoCode to ilustrate the > > Problem a bit Better: > > > > public class PdfController extends PdfPageEventHelper > > { > > private DataObject data; > > > > public void print(DataObject toPrint) > > { > > this.data = toPrint; > > Document document = new Document(PageSize.A4, 50, 50, 100, 70); > > PdfWriter writer = PdfWriter.getInstance(document, new > > FileOutputStream("HelloWorld.pdf")); > > document.open(); > > //do some PDF-Generation Stuff, depending on which kind > > of data is in "data" > > document.newPage(); > > //do some PDF-Generation Stuff, depending on which kind > > of data is in "data" > > document.close(); > > } > > > > public void onEndPage(PdfWriter writer, Document document) > > { > > //setup the header > > PdfPTable table = new PdfPTable(1); > > table.addCell((String)data.getFirstHeaderElement()); > > head.addCell(table); > > //do some more stuff.. > > } > > } > > > > In the Line > > table.addCell((String)data.getFirstHeaderElement()); in the > > onEndPageMethod I get an NullPointerException, during > > debugging I saw, that "data" is set directly before the call > > of "document.newPage();" but in the "onPageEnd"-Method it is > > null. Can you tell me what the Problem is, and how to solve > > it? Thanks a million > > > > armerIrrer > > > Aviso Legal: > Esta mensagem é destinada exclusivamente ao destinatário. Pode conter > informação confidencial ou legalmente protegida. A incorrecta transmissão > desta mensagem não significa a perca de confidencialidade. Se esta > mensagem for recebida por engano, por favor envie-a de volta para o remetente > e > apague-a do seu sistema de imediato. É proibido a qualquer pessoa que não o > destinatário de usar, revelar ou distribuir qualquer parte desta > mensagem. > > Disclaimer: > This message is destined exclusively to the intended receiver. It may > contain confidential or legally protected information. The incorrect > transmission of this message does not mean the loss of its confidentiality. > If this > message is received by mistake, please send it back to the sender and delete > it from your system immediately. It is forbidden to any person who is not > the intended receiver to use, distribute or copy any part of this message. > > ------------------------------------------------------------------------- > This SF.net email is sponsored by: Microsoft > Defy all challenges. Microsoft(R) Visual Studio 2008. > http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ > _______________________________________________ > iText-questions mailing list > iText-questions@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/itext-questions > > Do you like iText? > Buy the iText book: http://www.1t3xt.com/docs/book.php > Or leave a tip: https://tipit.to/itexttipjar -- Super-Aktion nur in der GMX Spieleflat: 10 Tage für 1 Euro. Über 180 Spiele downloaden: http://flat.games.gmx.de ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ iText-questions mailing list iText-questions@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/itext-questions Do you like iText? Buy the iText book: http://www.1t3xt.com/docs/book.php Or leave a tip: https://tipit.to/itexttipjar
